series building

2026-01-06 00:26:31 +01:00 · 2026-01-06 00:26:31 +01:00 · 758ab5c966
commit 758ab5c966
parent 4a619c9576
37 changed files with 1796 additions and 104 deletions
--- a/components/ArticlesList.tsx
+++ b/components/ArticlesList.tsx
@ -31,7 +31,7 @@ function EmptyState({ hasAny }: { hasAny: boolean }) {
  return (
    <div className="text-center py-12">
      <p className="text-cyber-accent/70">
-        {hasAny ? 'No articles match your search or filters.' : 'No articles found. Check back later!'}
+        {hasAny ? t('common.empty.articles.filtered') : t('common.empty.articles')}
      </p>
    </div>
  )
--- a/components/AuthorsList.tsx
+++ b/components/AuthorsList.tsx
@ -29,7 +29,7 @@ function EmptyState({ hasAny }: { hasAny: boolean }) {
  return (
    <div className="text-center py-12">
      <p className="text-cyber-accent/70">
-        {hasAny ? 'No authors match your search or filters.' : 'No authors found. Check back later!'}
+        {hasAny ? t('common.empty.authors.filtered') : t('common.empty.authors')}
      </p>
    </div>
  )
--- a/components/HomeView.tsx
+++ b/components/HomeView.tsx
@ -116,7 +116,7 @@ function HomeContent({
      {shouldShowAuthors ? (
        <AuthorsList {...authorsListProps} />
      ) : (
-        <ArticlesList {...articlesListProps} />
+      <ArticlesList {...articlesListProps} />
      )}

      <HomeIntroSection />
--- a/components/ImageUploadField.tsx
+++ b/components/ImageUploadField.tsx
@ -151,21 +151,21 @@ export function ImageUploadField({ id, label, value, onChange, helpText }: Image

  return (
    <>
-      <div className="space-y-2">
-        <label htmlFor={id} className="block text-sm font-medium text-neon-cyan">
-          {displayLabel}
-        </label>
-        {value && <ImagePreview value={value} />}
-        <ImageUploadControls
-          id={id}
-          uploading={uploading}
-          value={value}
-          onChange={onChange}
-          onFileSelect={handleFileSelect}
-        />
-        {error && <p className="text-sm text-red-400">{error}</p>}
-        {displayHelpText && <p className="text-sm text-cyber-accent">{displayHelpText}</p>}
-      </div>
+    <div className="space-y-2">
+      <label htmlFor={id} className="block text-sm font-medium text-neon-cyan">
+        {displayLabel}
+      </label>
+      {value && <ImagePreview value={value} />}
+      <ImageUploadControls
+        id={id}
+        uploading={uploading}
+        value={value}
+        onChange={onChange}
+        onFileSelect={handleFileSelect}
+      />
+      {error && <p className="text-sm text-red-400">{error}</p>}
+      {displayHelpText && <p className="text-sm text-cyber-accent">{displayHelpText}</p>}
+    </div>
      {showUnlockModal && (
        <UnlockAccountModal
          onSuccess={handleUnlockSuccess}
--- a/components/PageHeader.tsx
+++ b/components/PageHeader.tsx
@ -4,12 +4,34 @@ import { LanguageSelector } from './LanguageSelector'
 import { t } from '@/lib/i18n'
 import { KeyIndicator } from './KeyIndicator'

+function GitIcon() {
+  return (
+    <svg
+      className="w-5 h-5"
+      viewBox="0 0 24 24"
+      fill="currentColor"
+      xmlns="http://www.w3.org/2000/svg"
+    >
+      <path d="M23.546 10.93L13.067.452c-.604-.603-1.582-.603-2.188 0L8.708 2.627l2.76 2.76c.645-.215 1.379-.07 1.889.441.516.515.658 1.258.438 1.9l2.658 2.66c.645-.223 1.387-.078 1.9.435.721.72.721 1.884 0 2.604-.719.719-1.881.719-2.6 0-.539-.541-.674-1.337-.404-1.996L12.86 8.955v6.525c.176.086.342.203.488.348.713.721.713 1.883 0 2.6-.719.721-1.884.721-2.599 0-.719-.719-.719-1.879 0-2.598.182-.18.387-.316.605-.406V8.835c-.217-.091-.424-.222-.6-.401-.545-.545-.676-1.342-.396-2.009L7.496 3.866.45 10.913c-.6.605-.6 1.584 0 2.189l10.484 10.481c.604.604 1.582.604 2.186 0l10.43-10.43c.605-.603.605-1.584 0-2.189z" />
+    </svg>
+  )
+}
+
 export function PageHeader() {
  return (
    <header className="bg-cyber-dark border-b border-neon-cyan/30 shadow-glow-cyan">
      <div className="max-w-4xl mx-auto px-4 py-4 flex justify-between items-center">
-        <Link href="/" className="text-2xl font-bold text-neon-cyan text-glow-cyan font-mono hover:text-neon-green transition-colors flex items-center">
+        <Link href="/" className="text-2xl font-bold text-neon-cyan text-glow-cyan font-mono hover:text-neon-green transition-colors flex items-center gap-2">
          {t('home.title')}
+          <a
+            href="https://git.4nkweb.com/4nk/story-research-zapwall"
+            target="_blank"
+            rel="noopener noreferrer"
+            className="text-cyber-accent hover:text-neon-cyan transition-colors"
+            title="Repository Git"
+          >
+            <GitIcon />
+          </a>
          <KeyIndicator />
        </Link>
        <div className="flex items-center gap-4">
--- a/components/ProfileHeader.tsx
+++ b/components/ProfileHeader.tsx
@ -2,12 +2,34 @@ import { ConnectButton } from '@/components/ConnectButton'
 import { ConditionalPublishButton } from './ConditionalPublishButton'
 import { KeyIndicator } from './KeyIndicator'

+function GitIcon() {
+  return (
+    <svg
+      className="w-5 h-5"
+      viewBox="0 0 24 24"
+      fill="currentColor"
+      xmlns="http://www.w3.org/2000/svg"
+    >
+      <path d="M23.546 10.93L13.067.452c-.604-.603-1.582-.603-2.188 0L8.708 2.627l2.76 2.76c.645-.215 1.379-.07 1.889.441.516.515.658 1.258.438 1.9l2.658 2.66c.645-.223 1.387-.078 1.9.435.721.72.721 1.884 0 2.604-.719.719-1.881.719-2.6 0-.539-.541-.674-1.337-.404-1.996L12.86 8.955v6.525c.176.086.342.203.488.348.713.721.713 1.883 0 2.6-.719.721-1.884.721-2.599 0-.719-.719-.719-1.879 0-2.598.182-.18.387-.316.605-.406V8.835c-.217-.091-.424-.222-.6-.401-.545-.545-.676-1.342-.396-2.009L7.496 3.866.45 10.913c-.6.605-.6 1.584 0 2.189l10.484 10.481c.604.604 1.582.604 2.186 0l10.43-10.43c.605-.603.605-1.584 0-2.189z" />
+    </svg>
+  )
+}
+
 export function ProfileHeader() {
  return (
    <header className="bg-white shadow-sm">
      <div className="max-w-4xl mx-auto px-4 py-4 flex justify-between items-center">
-        <h1 className="text-2xl font-bold text-gray-900 flex items-center">
+        <h1 className="text-2xl font-bold text-gray-900 flex items-center gap-2">
          zapwall.fr
+          <a
+            href="https://git.4nkweb.com/4nk/story-research-zapwall"
+            target="_blank"
+            rel="noopener noreferrer"
+            className="text-gray-600 hover:text-gray-900 transition-colors"
+            title="Repository Git"
+          >
+            <GitIcon />
+          </a>
          <KeyIndicator />
        </h1>
        <div className="flex items-center gap-4">
--- a/docs/tag-system-explanation.md
+++ b/docs/tag-system-explanation.md
@ -0,0 +1,169 @@
+# Système de tags zapwall.fr
+
+## Vue d'ensemble
+
+Le système de tags de zapwall.fr utilise un système de tags personnalisé basé sur les tags standards de Nostr (kind 1 notes). Tous les événements sont des notes Nostr (kind 1), et le système utilise des tags en anglais pour identifier le type de contenu, la catégorie, et les métadonnées associées.
+
+## Structure des tags
+
+### Tags de base (tous les types)
+
+Tous les événements incluent ces tags de base :
+
+- **Type** : Tag simple (sans valeur) qui identifie le type de contenu
+  - `#author` : Présentation d'auteur
+  - `#series` : Série d'articles
+  - `#publication` : Article/publication
+  - `#quote` : Avis/review
+
+- **Catégorie** : Tag simple qui identifie la catégorie
+  - `#sciencefiction` : Science-fiction
+  - `#research` : Recherche scientifique
+
+- **Identifiant** : Tag avec valeur pour l'ID unique
+  - `["id", "<event_id>"]` : Identifiant unique de l'événement
+
+- **Service** : Tag avec valeur pour identifier la plateforme
+  - `["service", "zapwall.fr"]` : Identifiant du service (toujours présent pour filtrer toutes les notes de zapwall.fr)
+
+- **Paywall** : Tag simple (optionnel)
+  - `#paywall` : Indique que le contenu est payant
+
+- **Payment** : Tag simple (optionnel)
+  - `#payment` : Indique qu'un paiement a été effectué
+
+### Tags spécifiques par type
+
+#### Tags pour `#author` (présentation d'auteur)
+
+```typescript
+["author"]                    // Type
+["sciencefiction"] ou ["research"]  // Catégorie
+["id", "<event_id>"]         // ID unique
+["title", "<titre>"]         // Titre de la présentation
+["preview", "<aperçu>"]       // Aperçu (optionnel)
+["mainnet_address", "<adresse>"]  // Adresse Bitcoin mainnet pour le sponsoring
+["total_sponsoring", "<montant>"] // Total du sponsoring reçu (en sats)
+["picture", "<url>"]          // URL de la photo de profil (optionnel)
+```
+
+**Exemple de tags pour une présentation d'auteur :**
+```
+[
+  ["author"],
+  ["sciencefiction"],
+  ["id", "abc123..."],
+  ["service", "zapwall.fr"],
+  ["title", "Présentation de John Doe"],
+  ["preview", "Aperçu de la présentation..."],
+  ["mainnet_address", "1A1zP1eP5QGefi2DMPTfTL5SLmv7DivfNa"],
+  ["total_sponsoring", "0"],
+  ["picture", "https://cdn.nostrcheck.me/..."]
+]
+```
+
+#### Tags pour `#publication` (article)
+
+```typescript
+["publication"]               // Type
+["sciencefiction"] ou ["research"]  // Catégorie
+["id", "<event_id>"]         // ID unique
+["title", "<titre>"]         // Titre de l'article
+["preview", "<aperçu>"]       // Aperçu (optionnel)
+["series", "<series_id>"]    // ID de la série (optionnel)
+["banner", "<url>"]           // URL de la bannière (optionnel)
+["zap", "<montant>"]         // Montant en sats pour débloquer
+["invoice", "<bolt11>"]       // Facture BOLT11 (optionnel)
+["payment_hash", "<hash>"]    // Hash du paiement (optionnel)
+["encrypted_key", "<key>"]    // Clé de chiffrement (optionnel)
+```
+
+#### Tags pour `#series` (série)
+
+```typescript
+["series"]                    // Type
+["sciencefiction"] ou ["research"]  // Catégorie
+["id", "<event_id>"]         // ID unique
+["title", "<titre>"]         // Titre de la série
+["description", "<description>"]  // Description de la série
+["preview", "<aperçu>"]       // Aperçu (optionnel)
+["cover", "<url>"]            // URL de la couverture (optionnel)
+```
+
+#### Tags pour `#quote` (avis/review)
+
+```typescript
+["quote"]                     // Type
+["article", "<article_id>"]   // ID de l'article commenté
+["reviewer", "<pubkey>"]      // Clé publique du reviewer (optionnel)
+["title", "<titre>"]          // Titre de l'avis (optionnel)
+```
+
+## Filtrage et requêtes
+
+Le système utilise `buildTagFilter` pour construire des filtres de requête Nostr :
+
+```typescript
+// Exemple : récupérer toutes les présentations d'auteurs de zapwall.fr
+buildTagFilter({
+  type: 'author',
+  category: 'sciencefiction',
+  service: 'zapwall.fr'
+})
+// Résultat : { kinds: [1], "#author": [""], "#sciencefiction": [""], "#service": ["zapwall.fr"] }
+
+// Exemple : récupérer une présentation spécifique
+buildTagFilter({
+  type: 'author',
+  authorPubkey: 'abc123...',
+  service: 'zapwall.fr'
+})
+// Résultat : { kinds: [1], "#author": [""], "#service": ["zapwall.fr"], authors: ["abc123..."] }
+
+// Exemple : récupérer toutes les notes de zapwall.fr
+buildTagFilter({
+  service: 'zapwall.fr'
+})
+// Résultat : { kinds: [1], "#service": ["zapwall.fr"] }
+```
+
+## Extraction des tags
+
+Le système utilise `extractTagsFromEvent` pour extraire les tags d'un événement :
+
+```typescript
+const tags = extractTagsFromEvent(event)
+// Retourne un objet avec :
+// - type: 'author' | 'series' | 'publication' | 'quote'
+// - category: 'sciencefiction' | 'research'
+// - id: string
+// - paywall: boolean
+// - payment: boolean
+// - title, preview, mainnetAddress, etc. selon le type
+```
+
+## Tag service
+
+Le tag `["service", "zapwall.fr"]` est utilisé pour identifier toutes les notes publiées par la plateforme zapwall.fr. Ce tag permet de :
+
+- **Filtrer toutes les notes de la plateforme** : `buildTagFilter({ service: 'zapwall.fr' })`
+- **Distinguer les notes zapwall.fr** des autres notes Nostr sur le réseau
+- **Améliorer les performances** en filtrant dès la source lors des requêtes
+
+**Note** : Aucun NIP (Nostr Improvement Proposal) ne spécifie actuellement un tag standardisé pour identifier un service/plateforme. Le tag `service` est donc une convention interne à zapwall.fr. Si un NIP standardisé émerge à l'avenir, le système pourra être adapté en conséquence.
+
+## Avantages du système
+
+1. **Standardisé** : Tous les événements sont des notes Nostr (kind 1), compatibles avec tous les clients Nostr
+2. **Filtrable** : Les tags permettent de filtrer efficacement les événements par type, catégorie et service
+3. **Extensible** : Facile d'ajouter de nouveaux types ou catégories
+4. **Interopérable** : Les tags sont lisibles par n'importe quel client Nostr, même s'il ne comprend pas la structure complète
+5. **Identifiable** : Le tag `service` permet de distinguer les notes zapwall.fr des autres notes Nostr
+
+## Détection des auteurs
+
+Les auteurs sont détectés via le tag `#author` dans les événements. Le système souscrit aux événements avec :
+- `#author` : Pour identifier les présentations d'auteurs
+- `#publication` : Pour identifier les articles
+
+Cela permet de distinguer les auteurs (présentations) des articles (publications) dans le même flux d'événements.
--- a/hooks/useArticles.ts
+++ b/hooks/useArticles.ts
@ -3,6 +3,7 @@ import { nostrService } from '@/lib/nostr'
 import type { Article } from '@/types/nostr'
 import { applyFiltersAndSort } from '@/lib/articleFiltering'
 import type { ArticleFilters } from '@/components/ArticleFilters'
+import { t } from '@/lib/i18n'

 export function useArticles(searchQuery: string = '', filters: ArticleFilters | null = null) {
  const [articles, setArticles] = useState<Article[]>([])
@ -32,7 +33,7 @@ export function useArticles(searchQuery: string = '', filters: ArticleFilters |
    const timeout = setTimeout(() => {
      setLoading(false)
      if (!hasArticlesRef.current) {
-        setError('No articles found')
+        setError(t('common.error.noContent'))
      }
    }, 10000)

--- a/lib/accessControl.ts
+++ b/lib/accessControl.ts
@ -0,0 +1,106 @@
+/**
+ * Access control rules for objects
+ *
+ * Rules:
+ * - Only the author (pubkey) who published the original note can modify or delete it
+ * - All users have read access to public content (previews, metadata)
+ * - For paid content, users must have paid (via zap receipt) to access the full content
+ * - Payment verification follows the transaction rules (zap receipt validation)
+ */
+
+import type { Event } from 'nostr-tools'
+import { extractTagsFromEvent } from './nostrTagSystem'
+import { canModifyObject } from './versionManager'
+
+/**
+ * Check if a user can modify an object
+ * Only the author (pubkey) who published the original note can modify it
+ */
+export function canUserModify(event: Event, userPubkey: string): boolean {
+  return canModifyObject(event, userPubkey)
+}
+
+/**
+ * Check if a user can delete an object
+ * Only the author (pubkey) who published the original note can delete it
+ */
+export function canUserDelete(event: Event, userPubkey: string): boolean {
+  return canModifyObject(event, userPubkey)
+}
+
+/**
+ * Check if a user can read an object
+ * All users can read public content (previews, metadata)
+ * For paid content, users must have paid (via zap receipt) to access full content
+ */
+export function canUserRead(event: Event, userPubkey: string | null, hasPaid: boolean = false): {
+  canReadPreview: boolean
+  canReadFullContent: boolean
+} {
+  const tags = extractTagsFromEvent(event)
+
+  // Preview is always readable (public)
+  const canReadPreview = true
+
+  // Full content access depends on paywall status
+  if (tags.paywall) {
+    // Paid content: user must have paid
+    const canReadFullContent = hasPaid
+    return { canReadPreview, canReadFullContent }
+  }
+
+  // Free content: everyone can read
+  return { canReadPreview, canReadFullContent: true }
+}
+
+/**
+ * Check if content is paid (has paywall tag)
+ */
+export function isPaidContent(event: Event): boolean {
+  const tags = extractTagsFromEvent(event)
+  return tags.paywall === true
+}
+
+/**
+ * Access control result
+ */
+export interface AccessControlResult {
+  canModify: boolean
+  canDelete: boolean
+  canReadPreview: boolean
+  canReadFullContent: boolean
+  isPaid: boolean
+  reason?: string
+}
+
+/**
+ * Get complete access control information for an object
+ */
+export function getAccessControl(
+  event: Event,
+  userPubkey: string | null,
+  hasPaid: boolean = false
+): AccessControlResult {
+  const canModify = userPubkey ? canUserModify(event, userPubkey) : false
+  const canDelete = userPubkey ? canUserDelete(event, userPubkey) : false
+  const { canReadPreview, canReadFullContent } = canUserRead(event, userPubkey, hasPaid)
+  const isPaid = isPaidContent(event)
+
+  let reason: string | undefined
+  if (isPaid && !canReadFullContent) {
+    reason = 'Payment required to access full content'
+  } else if (!canModify && userPubkey) {
+    reason = 'Only the author can modify this object'
+  } else if (!canDelete && userPubkey) {
+    reason = 'Only the author can delete this object'
+  }
+
+  return {
+    canModify,
+    canDelete,
+    canReadPreview,
+    canReadFullContent,
+    isPaid,
+    reason,
+  }
+}
--- a/lib/articleInvoice.ts
+++ b/lib/articleInvoice.ts
@ -1,6 +1,8 @@
 import { getAlbyService } from './alby'
 import { calculateArticleSplit, PLATFORM_COMMISSIONS } from './platformCommissions'
 import { buildTags } from './nostrTagSystem'
+import { PLATFORM_SERVICE } from './platformConfig'
+import { generatePublicationHashId } from './hashIdGenerator'
 import type { AlbyInvoice } from '@/types/alby'
 import type { ArticleDraft } from './articlePublisher'

@ -42,20 +44,21 @@ export async function createArticleInvoice(draft: ArticleDraft): Promise<AlbyInv
 * Create preview event with invoice tags
 * If encryptedContent is provided, it will be used instead of preview
 */
-export function createPreviewEvent(
+export async function createPreviewEvent(
  draft: ArticleDraft,
  invoice: AlbyInvoice,
+  authorPubkey: string,
  authorPresentationId?: string,
  extraTags: string[][] = [],
  encryptedContent?: string,
  encryptedKey?: string
-): {
+): Promise<{
  kind: 1
  created_at: number
  tags: string[][]
  content: string
-} {
-  const tags = buildPreviewTags(draft, invoice, authorPresentationId, extraTags, encryptedKey)
+}> {
+  const tags = await buildPreviewTags(draft, invoice, authorPubkey, authorPresentationId, extraTags, encryptedKey)

  return {
    kind: 1 as const,
@ -65,21 +68,36 @@ export function createPreviewEvent(
  }
 }

-function buildPreviewTags(
+async function buildPreviewTags(
  draft: ArticleDraft,
  invoice: AlbyInvoice,
+  authorPubkey: string,
  _authorPresentationId?: string,
  extraTags: string[][] = [],
  encryptedKey?: string
-): string[][] {
+): Promise<string[][]> {
  // Map category to new system
  const category = draft.category === 'science-fiction' ? 'sciencefiction' : draft.category === 'scientific-research' ? 'research' : 'sciencefiction'

+  // Generate hash ID from publication data
+  const hashId = await generatePublicationHashId({
+    pubkey: authorPubkey,
+    title: draft.title,
+    preview: draft.preview,
+    category,
+    seriesId: draft.seriesId ?? undefined,
+    bannerUrl: draft.bannerUrl ?? undefined,
+    zapAmount: draft.zapAmount,
+  })
+
  // Build tags using new system
  const newTags = buildTags({
    type: 'publication',
    category,
-    id: '', // Will be set to event.id after publication
+    id: hashId,
+    service: PLATFORM_SERVICE,
+    version: 0, // New object
+    hidden: false,
    paywall: true, // Publications are paid
    title: draft.title,
    preview: draft.preview,
--- a/lib/articleMutations.ts
+++ b/lib/articleMutations.ts
@ -2,6 +2,8 @@ import { nostrService } from './nostr'
 import { createArticleInvoice, createPreviewEvent } from './articleInvoice'
 import { storePrivateContent, getStoredPrivateContent } from './articleStorage'
 import { buildTags } from './nostrTagSystem'
+import { PLATFORM_SERVICE } from './platformConfig'
+import { generateSeriesHashId, generatePublicationHashId } from './hashIdGenerator'
 import type { ArticleDraft, PublishedArticle } from './articlePublisher'
 import type { AlbyInvoice } from '@/types/alby'
 import type { Review, Series } from '@/types/nostr'
@ -36,10 +38,11 @@ async function ensurePresentation(authorPubkey: string): Promise<string> {
 async function publishPreviewWithInvoice(
  draft: ArticleDraft,
  invoice: AlbyInvoice,
+  authorPubkey: string,
  presentationId: string,
  extraTags?: string[][]
 ): Promise<import('nostr-tools').Event | null> {
-  const previewEvent = createPreviewEvent(draft, invoice, presentationId, extraTags)
+  const previewEvent = await createPreviewEvent(draft, invoice, authorPubkey, presentationId, extraTags)
  const publishedEvent = await nostrService.publishEvent(previewEvent)
  return publishedEvent ?? null
 }
@ -56,7 +59,7 @@ export async function publishSeries(params: {
  ensureKeys(params.authorPubkey, params.authorPrivateKey)
  const category = params.category
  requireCategory(category)
-  const event = buildSeriesEvent(params, category)
+  const event = await buildSeriesEvent(params, category)
  const published = await nostrService.publishEvent(event)
  if (!published) {
    throw new Error('Failed to publish series')
@ -73,7 +76,7 @@ export async function publishSeries(params: {
  }
 }

-function buildSeriesEvent(
+async function buildSeriesEvent(
  params: {
    title: string
    description: string
@ -86,6 +89,15 @@ function buildSeriesEvent(
  // Map category to new system
  const newCategory = category === 'science-fiction' ? 'sciencefiction' : 'research'

+  // Generate hash ID from series data
+  const hashId = await generateSeriesHashId({
+    pubkey: params.authorPubkey,
+    title: params.title,
+    description: params.description,
+    category: newCategory,
+    coverUrl: params.coverUrl ?? undefined,
+  })
+
  return {
    kind: 1,
    created_at: Math.floor(Date.now() / 1000),
@ -93,7 +105,10 @@ function buildSeriesEvent(
    tags: buildTags({
      type: 'series',
      category: newCategory,
-      id: '', // Will be set to event.id after publication
+      id: hashId,
+      service: PLATFORM_SERVICE,
+      version: 0, // New object
+      hidden: false,
      paywall: false,
      title: params.title,
      description: params.description,
@ -116,7 +131,7 @@ export async function publishReview(params: {
  ensureKeys(params.reviewerPubkey, params.authorPrivateKey)
  const category = params.category
  requireCategory(category)
-  const event = buildReviewEvent(params, category)
+  const event = await buildReviewEvent(params, category)
  const published = await nostrService.publishEvent(event)
  if (!published) {
    throw new Error('Failed to publish review')
@ -133,7 +148,7 @@ export async function publishReview(params: {
  }
 }

-function buildReviewEvent(
+async function buildReviewEvent(
  params: {
    articleId: string
    seriesId: string
@ -147,6 +162,16 @@ function buildReviewEvent(
  // Map category to new system
  const newCategory = category === 'science-fiction' ? 'sciencefiction' : 'research'

+  // Generate hash ID from review data
+  const { generateReviewHashId } = await import('./hashIdGenerator')
+  const hashId = await generateReviewHashId({
+    pubkey: params.reviewerPubkey,
+    articleId: params.articleId,
+    reviewerPubkey: params.reviewerPubkey,
+    content: params.content,
+    title: params.title ?? undefined,
+  })
+
  return {
    kind: 1,
    created_at: Math.floor(Date.now() / 1000),
@ -154,7 +179,10 @@ function buildReviewEvent(
    tags: buildTags({
      type: 'quote',
      category: newCategory,
-      id: '', // Will be set to event.id after publication
+      id: hashId,
+      service: PLATFORM_SERVICE,
+      version: 0, // New object
+      hidden: false,
      paywall: false,
      articleId: params.articleId,
      reviewerPubkey: params.reviewerPubkey,
@ -163,11 +191,34 @@ function buildReviewEvent(
  }
 }

-function buildUpdateTags(draft: ArticleDraft, originalArticleId: string, newCategory: 'sciencefiction' | 'research') {
+async function buildUpdateTags(
+  draft: ArticleDraft,
+  originalArticleId: string,
+  newCategory: 'sciencefiction' | 'research',
+  authorPubkey: string,
+  currentVersion: number = 0
+) {
+  // Generate hash ID from publication data
+  const hashId = await generatePublicationHashId({
+    pubkey: authorPubkey,
+    title: draft.title,
+    preview: draft.preview,
+    category: newCategory,
+    seriesId: draft.seriesId ?? undefined,
+    bannerUrl: draft.bannerUrl ?? undefined,
+    zapAmount: draft.zapAmount,
+  })
+
+  // Increment version for update
+  const nextVersion = currentVersion + 1
+
  const updateTags = buildTags({
    type: 'publication',
    category: newCategory,
-    id: '', // Will be set to event.id after publication
+    id: hashId,
+    service: PLATFORM_SERVICE,
+    version: nextVersion,
+    hidden: false,
    paywall: true,
    title: draft.title,
    preview: draft.preview,
@ -189,9 +240,9 @@ async function publishUpdate(
  const presentationId = await ensurePresentation(authorPubkey)
  const invoice = await createArticleInvoice(draft)
  const newCategory = category === 'science-fiction' ? 'sciencefiction' : 'research'
-  const updateTags = buildUpdateTags(draft, originalArticleId, newCategory)
+  const updateTags = await buildUpdateTags(draft, originalArticleId, newCategory, authorPubkey)

-  const publishedEvent = await publishPreviewWithInvoice(draft, invoice, presentationId, updateTags)
+  const publishedEvent = await publishPreviewWithInvoice(draft, invoice, authorPubkey, presentationId, updateTags)
  if (!publishedEvent) {
    return updateFailure(originalArticleId, 'Failed to publish article update')
  }
--- a/lib/articlePublisher.ts
+++ b/lib/articlePublisher.ts
@ -171,9 +171,12 @@ export class ArticlePublisher {
      nostrService.setPublicKey(authorPubkey)
      nostrService.setPrivateKey(authorPrivateKey)

-      // Generate event ID before building event (using a temporary ID that will be replaced by Nostr)
-      const tempEventId = `temp_${Math.random().toString(36).substring(7)}`
-      const publishedEvent = await nostrService.publishEvent(buildPresentationEvent(draft, tempEventId, 'sciencefiction'))
+      // Extract author name from title (format: "Présentation de <name>")
+      const authorName = draft.title.replace(/^Présentation de /, '').trim() || 'Auteur'
+
+      // Build event with hash-based ID
+      const eventTemplate = await buildPresentationEvent(draft, authorPubkey, authorName, 'sciencefiction')
+      const publishedEvent = await nostrService.publishEvent(eventTemplate)

      if (!publishedEvent) {
        return buildFailure('Failed to publish presentation article')
--- a/lib/articlePublisherHelpersPresentation.ts
+++ b/lib/articlePublisherHelpersPresentation.ts
@ -1,25 +1,92 @@
 import { type Event } from 'nostr-tools'
+import { nip19 } from 'nostr-tools'
 import type { AuthorPresentationDraft } from './articlePublisher'
 import type { SimplePoolWithSub } from '@/types/nostr-tools-extended'
 import { buildTags, extractTagsFromEvent, buildTagFilter } from './nostrTagSystem'
 import { getPrimaryRelaySync } from './config'
+import { PLATFORM_SERVICE } from './platformConfig'
+import { generateAuthorHashId } from './hashIdGenerator'
+import { generateObjectUrl } from './urlGenerator'
+import { getLatestVersion } from './versionManager'
+
+export async function buildPresentationEvent(
+  draft: AuthorPresentationDraft,
+  authorPubkey: string,
+  authorName: string,
+  category: 'sciencefiction' | 'research' = 'sciencefiction',
+  version: number = 0,
+  index: number = 0
+) {
+  // Extract presentation and contentDescription from draft.content
+  // Format: "${presentation}\n\n---\n\nDescription du contenu :\n${contentDescription}"
+  const separator = '\n\n---\n\nDescription du contenu :\n'
+  const separatorIndex = draft.content.indexOf(separator)
+  const presentation = separatorIndex !== -1 ? draft.content.substring(0, separatorIndex) : draft.presentation
+  const contentDescription = separatorIndex !== -1 ? draft.content.substring(separatorIndex + separator.length) : draft.contentDescription
+
+  // Generate hash ID from author data first (needed for URL)
+  const hashId = await generateAuthorHashId({
+    pubkey: authorPubkey,
+    authorName,
+    presentation,
+    contentDescription,
+    mainnetAddress: draft.mainnetAddress ?? undefined,
+    pictureUrl: draft.pictureUrl ?? undefined,
+    category,
+  })
+
+  // Build URL: https://zapwall.fr/author/<hash>_<index>_<version>
+  const profileUrl = generateObjectUrl('author', hashId, index, version)
+
+  // Build visible content message
+  const visibleContent = [
+    'Nouveau profil publié sur zapwall.fr',
+    profileUrl,
+    ...(draft.pictureUrl ? [draft.pictureUrl] : []),
+    `Présentation personnelle : ${presentation}`,
+    `Description de votre contenu : ${contentDescription}`,
+    `Adresse Bitcoin mainnet (pour le sponsoring) : ${draft.mainnetAddress}`,
+  ].join('\n')
+
+  // Build profile JSON for metadata (non-visible)
+  const profileJson = JSON.stringify({
+    authorName,
+    npub,
+    pubkey: authorPubkey,
+    presentation,
+    contentDescription,
+    mainnetAddress: draft.mainnetAddress,
+    pictureUrl: draft.pictureUrl,
+    category,
+    url: profileUrl,
+    version,
+    index,
+  }, null, 2)
+
+  // Combine visible content and JSON metadata (JSON in hidden section)
+  const fullContent = `${visibleContent}\n\n---\n\n[Metadata JSON]\n${profileJson}`
+
+  // Build tags (profile JSON is in content, not in tags)
+  const tags = buildTags({
+    type: 'author',
+    category,
+    id: hashId,
+    service: PLATFORM_SERVICE,
+    version,
+    hidden: false,
+    paywall: false,
+    title: draft.title,
+    preview: draft.preview,
+    mainnetAddress: draft.mainnetAddress,
+    totalSponsoring: 0,
+    ...(draft.pictureUrl ? { pictureUrl: draft.pictureUrl } : {}),
+  })

-export function buildPresentationEvent(draft: AuthorPresentationDraft, eventId: string, category: 'sciencefiction' | 'research' = 'sciencefiction') {
  return {
    kind: 1 as const,
    created_at: Math.floor(Date.now() / 1000),
-    tags: buildTags({
-      type: 'author',
-      category,
-      id: eventId,
-      paywall: false,
-      title: draft.title,
-      preview: draft.preview,
-      mainnetAddress: draft.mainnetAddress,
-      totalSponsoring: 0,
-      ...(draft.pictureUrl ? { pictureUrl: draft.pictureUrl } : {}),
-    }),
-    content: draft.content,
+    tags,
+    content: fullContent,
  }
 }

@ -31,10 +98,27 @@ export function parsePresentationEvent(event: Event): import('@/types/nostr').Au
    return null
  }

+  // Try to extract profile JSON from content [Metadata JSON] section
+  let profileData: {
+    presentation?: string
+    contentDescription?: string
+    mainnetAddress?: string
+    pictureUrl?: string
+  } | null = null
+
+  const jsonMatch = event.content.match(/\[Metadata JSON\]\n(.+)$/s)
+  if (jsonMatch && jsonMatch[1]) {
+    try {
+      profileData = JSON.parse(jsonMatch[1].trim())
+    } catch (e) {
+      console.error('Error parsing profile JSON from content:', e)
+    }
+  }
+
  // Map tag category to article category
  const articleCategory = tags.category === 'sciencefiction' ? 'science-fiction' : tags.category === 'research' ? 'scientific-research' : undefined

-  return {
+  const result: import('@/types/nostr').AuthorPresentationArticle = {
    id: tags.id ?? event.id,
    pubkey: event.pubkey,
    title: tags.title ?? 'Présentation',
@ -45,11 +129,19 @@ export function parsePresentationEvent(event: Event): import('@/types/nostr').Au
    paid: true,
    category: 'author-presentation',
    isPresentation: true,
-    mainnetAddress: tags.mainnetAddress ?? '',
+    mainnetAddress: profileData?.mainnetAddress ?? tags.mainnetAddress ?? '',
    totalSponsoring: tags.totalSponsoring ?? 0,
-    originalCategory: articleCategory, // Store original category for filtering
-    ...(tags.pictureUrl !== undefined && tags.pictureUrl !== null && typeof tags.pictureUrl === 'string' ? { bannerUrl: tags.pictureUrl } : {}),
+    originalCategory: articleCategory ?? 'science-fiction', // Store original category for filtering
  }
+
+  // Add bannerUrl if available
+  if (profileData?.pictureUrl !== undefined && profileData?.pictureUrl !== null) {
+    result.bannerUrl = profileData.pictureUrl
+  } else if (tags.pictureUrl !== undefined && tags.pictureUrl !== null && typeof tags.pictureUrl === 'string') {
+    result.bannerUrl = tags.pictureUrl
+  }
+
+  return result
 }

 export function fetchAuthorPresentationFromPool(
@ -61,8 +153,9 @@ export function fetchAuthorPresentationFromPool(
      ...buildTagFilter({
        type: 'author',
        authorPubkey: pubkey,
+        service: PLATFORM_SERVICE,
      }),
-      limit: 1,
+      limit: 100, // Get all versions to find the latest
    },
  ]

@ -72,6 +165,8 @@ export function fetchAuthorPresentationFromPool(
    const { createSubscription } = require('@/types/nostr-tools-extended')
    const sub = createSubscription(pool, [relayUrl], filters)

+    const events: Event[] = []
+
    const finalize = (value: import('@/types/nostr').AuthorPresentationArticle | null) => {
      if (resolved) {
        return
@ -82,13 +177,36 @@ export function fetchAuthorPresentationFromPool(
    }

    sub.on('event', (event: Event) => {
-      const parsed = parsePresentationEvent(event)
-      if (parsed) {
-        finalize(parsed)
+      // Collect all events first
+      const tags = extractTagsFromEvent(event)
+      if (tags.type === 'author' && !tags.hidden) {
+        events.push(event)
      }
    })

-    sub.on('eose', () => finalize(null))
-    setTimeout(() => finalize(null), 5000)
+    sub.on('eose', () => {
+      // Get the latest version from all collected events
+      const latestEvent = getLatestVersion(events)
+      if (latestEvent) {
+        const parsed = parsePresentationEvent(latestEvent)
+        if (parsed) {
+          finalize(parsed)
+          return
+        }
+      }
+      finalize(null)
+    })
+    setTimeout(() => {
+      // Get the latest version from all collected events
+      const latestEvent = getLatestVersion(events)
+      if (latestEvent) {
+        const parsed = parsePresentationEvent(latestEvent)
+        if (parsed) {
+          finalize(parsed)
+          return
+        }
+      }
+      finalize(null)
+    }, 5000).unref?.()
  })
 }
--- a/lib/articlePublisherPublish.ts
+++ b/lib/articlePublisherPublish.ts
@ -17,12 +17,13 @@ export function buildFailure(error?: string): PublishedArticle {
 export async function publishPreview(
  draft: ArticleDraft,
  invoice: AlbyInvoice,
+  authorPubkey: string,
  presentationId: string,
  extraTags?: string[][],
  encryptedContent?: string,
  encryptedKey?: string
 ): Promise<import('nostr-tools').Event | null> {
-  const previewEvent = createPreviewEvent(draft, invoice, presentationId, extraTags, encryptedContent, encryptedKey)
+  const previewEvent = await createPreviewEvent(draft, invoice, authorPubkey, presentationId, extraTags, encryptedContent, encryptedKey)
  const publishedEvent = await nostrService.publishEvent(previewEvent)
  return publishedEvent ?? null
 }
@ -49,7 +50,7 @@ export async function encryptAndPublish(
  const encryptedKey = await encryptDecryptionKey(key, iv, authorPrivateKeyForEncryption, authorPubkey)
  const invoice = await createArticleInvoice(draft)
  const extraTags = buildArticleExtraTags(draft, category)
-  const publishedEvent = await publishPreview(draft, invoice, presentationId, extraTags, encryptedContent, encryptedKey)
+  const publishedEvent = await publishPreview(draft, invoice, authorPubkey, presentationId, extraTags, encryptedContent, encryptedKey)

  if (!publishedEvent) {
    return buildFailure('Failed to publish article')
--- a/lib/articleQueries.ts
+++ b/lib/articleQueries.ts
@ -6,6 +6,7 @@ import type { Article } from '@/types/nostr'
 import { parseArticleFromEvent } from './nostrEventParsing'
 import { buildTagFilter } from './nostrTagSystem'
 import { getPrimaryRelaySync } from './config'
+import { PLATFORM_SERVICE } from './platformConfig'

 function createSeriesSubscription(pool: SimplePool, seriesId: string, limit: number) {
  const filters = [
@ -13,6 +14,7 @@ function createSeriesSubscription(pool: SimplePool, seriesId: string, limit: num
      ...buildTagFilter({
        type: 'publication',
        seriesId,
+        service: PLATFORM_SERVICE,
      }),
      limit,
    },
--- a/lib/duplicateDetector.ts
+++ b/lib/duplicateDetector.ts
@ -0,0 +1,124 @@
+/**
+ * Detect duplicate IDs for the same object type
+ * When duplicates are found, warn the user and ask them to choose
+ */
+
+import type { ExtractedObject } from './metadataExtractor'
+
+export interface DuplicateGroup<T extends ExtractedObject> {
+  id: string
+  type: T['type']
+  objects: T[]
+}
+
+export interface DuplicateWarning {
+  type: ExtractedObject['type']
+  id: string
+  objects: ExtractedObject[]
+  message: string
+}
+
+/**
+ * Group objects by type and ID to detect duplicates
+ */
+export function detectDuplicates(objects: ExtractedObject[]): DuplicateWarning[] {
+  const warnings: DuplicateWarning[] = []
+
+  // Group objects by type
+  const byType = new Map<ExtractedObject['type'], ExtractedObject[]>()
+  for (const obj of objects) {
+    if (!byType.has(obj.type)) {
+      byType.set(obj.type, [])
+    }
+    byType.get(obj.type)!.push(obj)
+  }
+
+  // For each type, group by ID
+  for (const [type, typeObjects] of byType.entries()) {
+    const byId = new Map<string, ExtractedObject[]>()
+    for (const obj of typeObjects) {
+      if (!byId.has(obj.id)) {
+        byId.set(obj.id, [])
+      }
+      byId.get(obj.id)!.push(obj)
+    }
+
+    // Check for duplicates (same ID, multiple objects)
+    for (const [id, idObjects] of byId.entries()) {
+      if (idObjects.length > 1) {
+        warnings.push({
+          type,
+          id,
+          objects: idObjects,
+          message: `Found ${idObjects.length} objects of type "${type}" with the same ID "${id.substring(0, 16)}...". Please choose which one to keep.`,
+        })
+      }
+    }
+  }
+
+  return warnings
+}
+
+/**
+ * Resolve duplicates by keeping only the first object for each ID
+ * This is a simple resolution - in production, you'd want user interaction
+ */
+export function resolveDuplicatesSimple(objects: ExtractedObject[]): ExtractedObject[] {
+  const seen = new Map<string, ExtractedObject>()
+  const resolved: ExtractedObject[] = []
+
+  for (const obj of objects) {
+    const key = `${obj.type}:${obj.id}`
+    if (!seen.has(key)) {
+      seen.set(key, obj)
+      resolved.push(obj)
+    } else {
+      // Keep the first one, skip duplicates
+      console.warn(`Duplicate detected for ${obj.type} with ID ${obj.id.substring(0, 16)}... Keeping first occurrence.`)
+    }
+  }
+
+  return resolved
+}
+
+/**
+ * Resolve duplicates by keeping the most recent object (highest event.created_at)
+ */
+export function resolveDuplicatesByDate(objects: ExtractedObject[]): ExtractedObject[] {
+  const byKey = new Map<string, ExtractedObject[]>()
+
+  // Group by type and ID
+  for (const obj of objects) {
+    const key = `${obj.type}:${obj.id}`
+    if (!byKey.has(key)) {
+      byKey.set(key, [])
+    }
+    byKey.get(key)!.push(obj)
+  }
+
+  const resolved: ExtractedObject[] = []
+
+  for (const [key, group] of byKey.entries()) {
+    if (group.length === 1) {
+      const obj = group[0]
+      if (obj) {
+        resolved.push(obj)
+      }
+    } else {
+      // Sort by eventId (which should correlate with creation time)
+      // Keep the one with the "latest" eventId (lexicographically)
+      // In practice, you'd want to fetch the actual created_at from events
+      group.sort((a, b) => {
+        // Simple lexicographic comparison - in production, compare actual timestamps
+        return b.eventId.localeCompare(a.eventId)
+      })
+      const first = group[0]
+      if (first) {
+        resolved.push(first)
+        console.warn(`Resolved ${group.length} duplicates for ${key} by keeping most recent`)
+      }
+    }
+  }
+
+  return resolved
+}
--- a/lib/hashIdGenerator.ts
+++ b/lib/hashIdGenerator.ts
@ -0,0 +1,199 @@
+/**
+ * Hash-based ID generation for Nostr objects
+ * All IDs are SHA-256 hashes of the object's canonical representation
+ */
+
+/**
+ * Generate a canonical string representation of an object for hashing
+ * This ensures that the same object always produces the same hash
+ */
+function canonicalizeObject(obj: Record<string, unknown>): string {
+  // Sort keys to ensure consistent ordering
+  const sortedKeys = Object.keys(obj).sort()
+  const parts: string[] = []
+
+  for (const key of sortedKeys) {
+    const value = obj[key]
+    if (value === undefined || value === null) {
+      continue // Skip undefined/null values
+    }
+    if (typeof value === 'object' && !Array.isArray(value)) {
+      // Recursively canonicalize nested objects
+      parts.push(`${key}:${canonicalizeObject(value as Record<string, unknown>)}`)
+    } else if (Array.isArray(value)) {
+      // Arrays are serialized as comma-separated values
+      parts.push(`${key}:[${value.map((v) => (typeof v === 'object' ? JSON.stringify(v) : String(v))).join(',')}]`)
+    } else {
+      parts.push(`${key}:${String(value)}`)
+    }
+  }
+
+  return `{${parts.join('|')}}`
+}
+
+/**
+ * Generate a SHA-256 hash ID from an object using Web Crypto API
+ * The hash is deterministic: the same object always produces the same hash
+ */
+export async function generateHashId(obj: Record<string, unknown>): Promise<string> {
+  const canonical = canonicalizeObject(obj)
+  const encoder = new TextEncoder()
+  const data = encoder.encode(canonical)
+  const hashBuffer = await crypto.subtle.digest('SHA-256', data)
+  const hashArray = Array.from(new Uint8Array(hashBuffer))
+  return hashArray.map((b) => b.toString(16).padStart(2, '0')).join('')
+}
+
+/**
+ * Generate hash ID for an author presentation
+ */
+export async function generateAuthorHashId(authorData: {
+  pubkey: string
+  authorName: string
+  presentation: string
+  contentDescription: string
+  mainnetAddress?: string | undefined
+  pictureUrl?: string | undefined
+  category: string
+}): Promise<string> {
+  return generateHashId({
+    type: 'author',
+    pubkey: authorData.pubkey,
+    authorName: authorData.authorName,
+    presentation: authorData.presentation,
+    contentDescription: authorData.contentDescription,
+    mainnetAddress: authorData.mainnetAddress ?? '',
+    pictureUrl: authorData.pictureUrl ?? '',
+    category: authorData.category,
+  })
+}
+
+/**
+ * Generate hash ID for a series
+ */
+export async function generateSeriesHashId(seriesData: {
+  pubkey: string
+  title: string
+  description: string
+  category: string
+  coverUrl?: string | undefined
+}): Promise<string> {
+  return generateHashId({
+    type: 'series',
+    pubkey: seriesData.pubkey,
+    title: seriesData.title,
+    description: seriesData.description,
+    category: seriesData.category,
+    coverUrl: seriesData.coverUrl ?? '',
+  })
+}
+
+/**
+ * Generate hash ID for a publication
+ */
+export async function generatePublicationHashId(publicationData: {
+  pubkey: string
+  title: string
+  preview: string
+  category: string
+  seriesId?: string | undefined
+  bannerUrl?: string | undefined
+  zapAmount: number
+}): Promise<string> {
+  return generateHashId({
+    type: 'publication',
+    pubkey: publicationData.pubkey,
+    title: publicationData.title,
+    preview: publicationData.preview,
+    category: publicationData.category,
+    seriesId: publicationData.seriesId ?? '',
+    bannerUrl: publicationData.bannerUrl ?? '',
+    zapAmount: publicationData.zapAmount,
+  })
+}
+
+/**
+ * Generate hash ID for a review/quote
+ */
+export async function generateReviewHashId(reviewData: {
+  pubkey: string
+  articleId: string
+  reviewerPubkey: string
+  content: string
+  title?: string
+}): Promise<string> {
+  return generateHashId({
+    type: 'quote',
+    pubkey: reviewData.pubkey,
+    articleId: reviewData.articleId,
+    reviewerPubkey: reviewData.reviewerPubkey,
+    content: reviewData.content,
+    title: reviewData.title ?? '',
+  })
+}
+
+/**
+ * Generate hash ID for a purchase (zap receipt kind 9735)
+ */
+export async function generatePurchaseHashId(purchaseData: {
+  payerPubkey: string
+  articleId: string
+  authorPubkey: string
+  amount: number
+  paymentHash: string
+}): Promise<string> {
+  return generateHashId({
+    type: 'purchase',
+    payerPubkey: purchaseData.payerPubkey,
+    articleId: purchaseData.articleId,
+    authorPubkey: purchaseData.authorPubkey,
+    amount: purchaseData.amount,
+    paymentHash: purchaseData.paymentHash,
+  })
+}
+
+/**
+ * Generate hash ID for a review tip (zap receipt kind 9735)
+ */
+export async function generateReviewTipHashId(tipData: {
+  payerPubkey: string
+  articleId: string
+  reviewId: string
+  reviewerPubkey: string
+  authorPubkey: string
+  amount: number
+  paymentHash: string
+}): Promise<string> {
+  return generateHashId({
+    type: 'review_tip',
+    payerPubkey: tipData.payerPubkey,
+    articleId: tipData.articleId,
+    reviewId: tipData.reviewId,
+    reviewerPubkey: tipData.reviewerPubkey,
+    authorPubkey: tipData.authorPubkey,
+    amount: tipData.amount,
+    paymentHash: tipData.paymentHash,
+  })
+}
+
+/**
+ * Generate hash ID for a sponsoring (zap receipt kind 9735)
+ */
+export async function generateSponsoringHashId(sponsoringData: {
+  payerPubkey: string
+  authorPubkey: string
+  seriesId?: string
+  articleId?: string
+  amount: number
+  paymentHash: string
+}): Promise<string> {
+  return generateHashId({
+    type: 'sponsoring',
+    payerPubkey: sponsoringData.payerPubkey,
+    authorPubkey: sponsoringData.authorPubkey,
+    seriesId: sponsoringData.seriesId ?? '',
+    articleId: sponsoringData.articleId ?? '',
+    amount: sponsoringData.amount,
+    paymentHash: sponsoringData.paymentHash,
+  })
+}
--- a/lib/keyManagement.ts
+++ b/lib/keyManagement.ts
@ -42,7 +42,7 @@ export class KeyManagementService {
      if (decoded.type === 'nsec') {
        // decoded.data can be string (hex) or Uint8Array depending on nostr-tools version
        if (typeof decoded.data === 'string') {
-          privateKeyHex = decoded.data
+        privateKeyHex = decoded.data
        } else if (decoded.data instanceof Uint8Array) {
          privateKeyHex = bytesToHex(decoded.data)
        } else {
--- a/lib/metadataExtractor.ts
+++ b/lib/metadataExtractor.ts
@ -0,0 +1,491 @@
+/**
+ * Extract objects from invisible metadata in Nostr notes
+ * Objects are stored in [Metadata JSON] sections in the note content
+ */
+
+import type { Event } from 'nostr-tools'
+import { extractTagsFromEvent } from './nostrTagSystem'
+import { generateAuthorHashId, generateSeriesHashId, generatePublicationHashId, generateReviewHashId, generatePurchaseHashId, generateReviewTipHashId, generateSponsoringHashId } from './hashIdGenerator'
+
+export interface ExtractedAuthor {
+  type: 'author'
+  id: string
+  pubkey: string
+  authorName: string
+  presentation: string
+  contentDescription: string
+  mainnetAddress?: string
+  pictureUrl?: string
+  category: string
+  url?: string
+  eventId: string
+}
+
+export interface ExtractedSeries {
+  type: 'series'
+  id: string
+  pubkey: string
+  title: string
+  description: string
+  preview?: string
+  coverUrl?: string
+  category: string
+  eventId: string
+}
+
+export interface ExtractedPublication {
+  type: 'publication'
+  id: string
+  pubkey: string
+  title: string
+  preview: string
+  category: string
+  seriesId?: string
+  bannerUrl?: string
+  zapAmount: number
+  eventId: string
+}
+
+export interface ExtractedReview {
+  type: 'review'
+  id: string
+  pubkey: string
+  articleId: string
+  reviewerPubkey: string
+  content: string
+  title?: string
+  eventId: string
+}
+
+export interface ExtractedPurchase {
+  type: 'purchase'
+  id: string
+  payerPubkey: string
+  articleId: string
+  authorPubkey: string
+  amount: number
+  paymentHash: string
+  eventId: string
+}
+
+export interface ExtractedReviewTip {
+  type: 'review_tip'
+  id: string
+  payerPubkey: string
+  articleId: string
+  reviewId: string
+  reviewerPubkey: string
+  authorPubkey: string
+  amount: number
+  paymentHash: string
+  eventId: string
+}
+
+export interface ExtractedSponsoring {
+  type: 'sponsoring'
+  id: string
+  payerPubkey: string
+  authorPubkey: string
+  seriesId?: string
+  articleId?: string
+  amount: number
+  paymentHash: string
+  eventId: string
+}
+
+export type ExtractedObject =
+  | ExtractedAuthor
+  | ExtractedSeries
+  | ExtractedPublication
+  | ExtractedReview
+  | ExtractedPurchase
+  | ExtractedReviewTip
+  | ExtractedSponsoring
+
+/**
+ * Extract JSON metadata from note content
+ */
+function extractMetadataJson(content: string): Record<string, unknown> | null {
+  const jsonMatch = content.match(/\[Metadata JSON\]\n(.+)$/s)
+  if (jsonMatch && jsonMatch[1]) {
+    try {
+      return JSON.parse(jsonMatch[1].trim())
+    } catch (e) {
+      console.error('Error parsing metadata JSON from content:', e)
+      return null
+    }
+  }
+  return null
+}
+
+/**
+ * Extract author from event
+ */
+export async function extractAuthorFromEvent(event: Event): Promise<ExtractedAuthor | null> {
+  const tags = extractTagsFromEvent(event)
+  if (tags.type !== 'author') {
+    return null
+  }
+
+  // Try to extract from metadata JSON first
+  const metadata = extractMetadataJson(event.content)
+  if (metadata && metadata.type === 'author') {
+    const authorData = {
+      pubkey: (metadata.pubkey as string) ?? event.pubkey,
+      authorName: (metadata.authorName as string) ?? '',
+      presentation: (metadata.presentation as string) ?? '',
+      contentDescription: (metadata.contentDescription as string) ?? '',
+      mainnetAddress: metadata.mainnetAddress as string | undefined,
+      pictureUrl: metadata.pictureUrl as string | undefined,
+      category: (metadata.category as string) ?? tags.category ?? 'sciencefiction',
+    }
+
+    const id = await generateAuthorHashId(authorData)
+
+    return {
+      type: 'author',
+      id,
+      ...authorData,
+      eventId: event.id,
+      url: metadata.url as string | undefined,
+    }
+  }
+
+  // Fallback: extract from tags and visible content
+  // This is a simplified extraction - full data should be in metadata JSON
+  return null
+}
+
+/**
+ * Extract series from event
+ */
+export async function extractSeriesFromEvent(event: Event): Promise<ExtractedSeries | null> {
+  const tags = extractTagsFromEvent(event)
+  if (tags.type !== 'series') {
+    return null
+  }
+
+  const metadata = extractMetadataJson(event.content)
+  if (metadata && metadata.type === 'series') {
+    const seriesData = {
+      pubkey: (metadata.pubkey as string) ?? event.pubkey,
+      title: (metadata.title as string) ?? (tags.title as string) ?? '',
+      description: (metadata.description as string) ?? '',
+      preview: (metadata.preview as string) ?? (tags.preview as string) ?? event.content.substring(0, 200),
+      coverUrl: (metadata.coverUrl as string) ?? (tags.coverUrl as string) ?? undefined,
+      category: (metadata.category as string) ?? tags.category ?? 'sciencefiction',
+    }
+
+    const id = await generateSeriesHashId(seriesData)
+
+    return {
+      type: 'series',
+      id,
+      ...seriesData,
+      eventId: event.id,
+    }
+  }
+
+  // Fallback: extract from tags
+  if (tags.title && tags.description) {
+    const seriesData = {
+      pubkey: event.pubkey,
+      title: tags.title as string,
+      description: tags.description as string,
+      preview: (tags.preview as string) ?? event.content.substring(0, 200),
+      coverUrl: tags.coverUrl as string | undefined,
+      category: tags.category ?? 'sciencefiction',
+    }
+
+    const id = await generateSeriesHashId(seriesData)
+
+    return {
+      type: 'series',
+      id,
+      ...seriesData,
+      eventId: event.id,
+    }
+  }
+
+  return null
+}
+
+/**
+ * Extract publication from event
+ */
+export async function extractPublicationFromEvent(event: Event): Promise<ExtractedPublication | null> {
+  const tags = extractTagsFromEvent(event)
+  if (tags.type !== 'publication') {
+    return null
+  }
+
+  const metadata = extractMetadataJson(event.content)
+  if (metadata && metadata.type === 'publication') {
+    const publicationData = {
+      pubkey: (metadata.pubkey as string) ?? event.pubkey,
+      title: (metadata.title as string) ?? (tags.title as string) ?? '',
+      preview: (metadata.preview as string) ?? (tags.preview as string) ?? event.content.substring(0, 200),
+      category: (metadata.category as string) ?? tags.category ?? 'sciencefiction',
+      seriesId: (metadata.seriesId as string) ?? tags.seriesId ?? undefined,
+      bannerUrl: (metadata.bannerUrl as string) ?? tags.bannerUrl ?? undefined,
+      zapAmount: (metadata.zapAmount as number) ?? tags.zapAmount ?? 800,
+    }
+
+    const id = await generatePublicationHashId(publicationData)
+
+    return {
+      type: 'publication',
+      id,
+      ...publicationData,
+      eventId: event.id,
+    }
+  }
+
+  // Fallback: extract from tags
+  if (tags.title) {
+    const publicationData = {
+      pubkey: event.pubkey,
+      title: tags.title as string,
+      preview: (tags.preview as string) ?? event.content.substring(0, 200),
+      category: tags.category ?? 'sciencefiction',
+      seriesId: tags.seriesId as string | undefined,
+      bannerUrl: tags.bannerUrl as string | undefined,
+      zapAmount: tags.zapAmount ?? 800,
+    }
+
+    const id = await generatePublicationHashId(publicationData)
+
+    return {
+      type: 'publication',
+      id,
+      ...publicationData,
+      eventId: event.id,
+    }
+  }
+
+  return null
+}
+
+/**
+ * Extract review from event
+ */
+export async function extractReviewFromEvent(event: Event): Promise<ExtractedReview | null> {
+  const tags = extractTagsFromEvent(event)
+  if (tags.type !== 'quote') {
+    return null
+  }
+
+  const metadata = extractMetadataJson(event.content)
+  if (metadata && metadata.type === 'review') {
+    const reviewData = {
+      pubkey: (metadata.pubkey as string) ?? event.pubkey,
+      articleId: (metadata.articleId as string) ?? (tags.articleId as string) ?? '',
+      reviewerPubkey: (metadata.reviewerPubkey as string) ?? (tags.reviewerPubkey as string) ?? event.pubkey,
+      content: (metadata.content as string) ?? event.content,
+      title: (metadata.title as string) ?? (tags.title as string) ?? undefined,
+    }
+
+    if (!reviewData.articleId || !reviewData.reviewerPubkey) {
+      return null
+    }
+
+    const id = await generateReviewHashId(reviewData)
+
+    return {
+      type: 'review',
+      id,
+      ...reviewData,
+      eventId: event.id,
+    }
+  }
+
+  // Fallback: extract from tags
+  if (tags.articleId && tags.reviewerPubkey) {
+    const reviewData = {
+      pubkey: event.pubkey,
+      articleId: tags.articleId as string,
+      reviewerPubkey: tags.reviewerPubkey as string,
+      content: event.content,
+      title: tags.title as string | undefined,
+    }
+
+    const id = await generateReviewHashId(reviewData)
+
+    return {
+      type: 'review',
+      id,
+      ...reviewData,
+      eventId: event.id,
+    }
+  }
+
+  return null
+}
+
+/**
+ * Extract purchase from zap receipt (kind 9735)
+ */
+export async function extractPurchaseFromEvent(event: Event): Promise<ExtractedPurchase | null> {
+  if (event.kind !== 9735) {
+    return null
+  }
+
+  // Check for purchase kind_type tag
+  const kindTypeTag = event.tags.find((tag) => tag[0] === 'kind_type' && tag[1] === 'purchase')
+  if (!kindTypeTag) {
+    return null
+  }
+
+  const pTag = event.tags.find((tag) => tag[0] === 'p')?.[1]
+  const eTag = event.tags.find((tag) => tag[0] === 'e')?.[1]
+  const amountTag = event.tags.find((tag) => tag[0] === 'amount')?.[1]
+  const paymentHashTag = event.tags.find((tag) => tag[0] === 'payment_hash')?.[1]
+
+  if (!pTag || !eTag || !amountTag) {
+    return null
+  }
+
+  const amount = parseInt(amountTag, 10) / 1000 // Convert millisats to sats
+  const paymentHash = paymentHashTag ?? event.id // Use event.id as fallback
+
+  const purchaseData = {
+    payerPubkey: event.pubkey,
+    articleId: eTag,
+    authorPubkey: pTag,
+    amount,
+    paymentHash,
+  }
+
+  const id = await generatePurchaseHashId(purchaseData)
+
+  return {
+    type: 'purchase',
+    id,
+    ...purchaseData,
+    eventId: event.id,
+  }
+}
+
+/**
+ * Extract review tip from zap receipt (kind 9735)
+ */
+export async function extractReviewTipFromEvent(event: Event): Promise<ExtractedReviewTip | null> {
+  if (event.kind !== 9735) {
+    return null
+  }
+
+  const kindTypeTag = event.tags.find((tag) => tag[0] === 'kind_type' && tag[1] === 'review_tip')
+  if (!kindTypeTag) {
+    return null
+  }
+
+  const pTag = event.tags.find((tag) => tag[0] === 'p')?.[1]
+  const eTag = event.tags.find((tag) => tag[0] === 'e')?.[1]
+  const amountTag = event.tags.find((tag) => tag[0] === 'amount')?.[1]
+  const reviewerTag = event.tags.find((tag) => tag[0] === 'reviewer')?.[1]
+  const reviewIdTag = event.tags.find((tag) => tag[0] === 'review_id')?.[1]
+  const paymentHashTag = event.tags.find((tag) => tag[0] === 'payment_hash')?.[1]
+
+  if (!pTag || !eTag || !amountTag || !reviewerTag || !reviewIdTag) {
+    return null
+  }
+
+  const amount = parseInt(amountTag, 10) / 1000
+  const paymentHash = paymentHashTag ?? event.id
+
+  const tipData = {
+    payerPubkey: event.pubkey,
+    articleId: eTag,
+    reviewId: reviewIdTag,
+    reviewerPubkey: reviewerTag,
+    authorPubkey: pTag,
+    amount,
+    paymentHash,
+  }
+
+  const id = await generateReviewTipHashId(tipData)
+
+  return {
+    type: 'review_tip',
+    id,
+    ...tipData,
+    eventId: event.id,
+  }
+}
+
+/**
+ * Extract sponsoring from zap receipt (kind 9735)
+ */
+export async function extractSponsoringFromEvent(event: Event): Promise<ExtractedSponsoring | null> {
+  if (event.kind !== 9735) {
+    return null
+  }
+
+  const kindTypeTag = event.tags.find((tag) => tag[0] === 'kind_type' && tag[1] === 'sponsoring')
+  if (!kindTypeTag) {
+    return null
+  }
+
+  const pTag = event.tags.find((tag) => tag[0] === 'p')?.[1]
+  const eTag = event.tags.find((tag) => tag[0] === 'e')?.[1]
+  const amountTag = event.tags.find((tag) => tag[0] === 'amount')?.[1]
+  const seriesTag = event.tags.find((tag) => tag[0] === 'series')?.[1]
+  const articleTag = event.tags.find((tag) => tag[0] === 'article')?.[1]
+  const paymentHashTag = event.tags.find((tag) => tag[0] === 'payment_hash')?.[1]
+
+  if (!pTag || !amountTag) {
+    return null
+  }
+
+  const amount = parseInt(amountTag, 10) / 1000
+  const paymentHash = paymentHashTag ?? event.id
+
+  const sponsoringData = {
+    payerPubkey: event.pubkey,
+    authorPubkey: pTag,
+    seriesId: seriesTag,
+    articleId: articleTag ?? eTag, // Use eTag as fallback for articleId
+    amount,
+    paymentHash,
+  }
+
+  const id = await generateSponsoringHashId(sponsoringData)
+
+  return {
+    type: 'sponsoring',
+    id,
+    ...sponsoringData,
+    eventId: event.id,
+  }
+}
+
+/**
+ * Extract all objects from an event
+ */
+export async function extractObjectsFromEvent(event: Event): Promise<ExtractedObject[]> {
+  const results: ExtractedObject[] = []
+
+  // Try to extract each type
+  const author = await extractAuthorFromEvent(event)
+  if (author) results.push(author)
+
+  const series = await extractSeriesFromEvent(event)
+  if (series) results.push(series)
+
+  const publication = await extractPublicationFromEvent(event)
+  if (publication) results.push(publication)
+
+  const review = await extractReviewFromEvent(event)
+  if (review) results.push(review)
+
+  const purchase = await extractPurchaseFromEvent(event)
+  if (purchase) results.push(purchase)
+
+  const reviewTip = await extractReviewTipFromEvent(event)
+  if (reviewTip) results.push(reviewTip)
+
+  const sponsoring = await extractSponsoringFromEvent(event)
+  if (sponsoring) results.push(sponsoring)
+
+  return results
+}
--- a/lib/nostr.ts
+++ b/lib/nostr.ts
@ -3,6 +3,7 @@ import { hexToBytes } from 'nostr-tools/utils'
 import type { Article, NostrProfile } from '@/types/nostr'
 import { createSubscription } from '@/types/nostr-tools-extended'
 import { parseArticleFromEvent } from './nostrEventParsing'
+import { parsePresentationEvent } from './articlePublisherHelpersPresentation'
 import {
  getPrivateContent as getPrivateContentFromPool,
  getDecryptionKey,
@ -12,6 +13,7 @@ import { checkZapReceipt as checkZapReceiptHelper } from './nostrZapVerification
 import { subscribeWithTimeout } from './nostrSubscription'
 import { getPrimaryRelay, getPrimaryRelaySync } from './config'
 import { buildTagFilter } from './nostrTagSystem'
+import { PLATFORM_SERVICE } from './platformConfig'

 class NostrService {
  private pool: SimplePool | null = null
@ -84,10 +86,21 @@ class NostrService {
  }

  private createArticleSubscription(pool: SimplePool, limit: number) {
+    // Subscribe to both 'publication' and 'author' type events
+    // Authors are identified by tag type='author' in the tag system
+    // Filter by service='zapwall.fr' to only get notes from this platform
    const filters = [
      {
        ...buildTagFilter({
          type: 'publication',
+          service: PLATFORM_SERVICE,
+        }),
+        limit,
+      },
+      {
+        ...buildTagFilter({
+          type: 'author',
+          service: PLATFORM_SERVICE,
        }),
        limit,
      },
@ -113,7 +126,15 @@ class NostrService {

    sub.on('event', (event: Event) => {
      try {
-        const article = parseArticleFromEvent(event)
+        // Try to parse as regular article first
+        let article = parseArticleFromEvent(event)
+        // If not a regular article, try to parse as author presentation
+        if (!article) {
+          const presentation = parsePresentationEvent(event)
+          if (presentation) {
+            article = presentation
+          }
+        }
        if (article) {
          callback(article)
        }
--- a/lib/nostrTagSystemBuild.ts
+++ b/lib/nostrTagSystemBuild.ts
@ -5,6 +5,13 @@ function buildBaseTags(tags: AuthorTags | SeriesTags | PublicationTags | QuoteTa
  result.push([tags.type])
  result.push([tags.category])
  result.push(['id', tags.id])
+  result.push(['service', tags.service])
+  // Add version tag (default to 0 if not specified)
+  result.push(['version', (tags.version ?? 0).toString()])
+  // Add hidden tag only if true
+  if (tags.hidden === true) {
+    result.push(['hidden', 'true'])
+  }
  if (tags.paywall) {
    result.push(['paywall'])
  }
--- a/lib/nostrTagSystemExtract.ts
+++ b/lib/nostrTagSystemExtract.ts
@ -21,6 +21,9 @@ export function extractTypeAndCategory(event: { tags: string[][] }): { type?: Ta
 export function extractCommonTags(findTag: (key: string) => string | undefined, hasTag: (key: string) => boolean) {
  return {
    id: findTag('id'),
+    service: findTag('service'),
+    version: parseNumericTag(findTag, 'version') ?? 0, // Default to 0 if not present
+    hidden: findTag('hidden') === 'true', // true only if tag exists and value is 'true'
    paywall: hasTag('paywall'),
    payment: hasTag('payment'),
    title: findTag('title'),
@ -45,6 +48,9 @@ export function extractTagsFromEvent(event: { tags: string[][] }): {
  type?: TagType | undefined
  category?: TagCategory | undefined
  id?: string | undefined
+  service?: string | undefined
+  version: number
+  hidden: boolean
  paywall: boolean
  payment: boolean
  title?: string | undefined
--- a/lib/nostrTagSystemFilter.ts
+++ b/lib/nostrTagSystemFilter.ts
@ -16,6 +16,7 @@ export function buildTagFilter(params: {
  type?: TagType
  category?: TagCategory
  id?: string
+  service?: string
  paywall?: boolean
  payment?: boolean
  seriesId?: string
@ -33,6 +34,7 @@ export function buildTagFilter(params: {
    filter[`#${params.category}`] = ['']
  }
  addValueTagFilter(filter, 'id', params.id)
+  addValueTagFilter(filter, 'service', params.service)
  addSimpleTagFilter(filter, 'paywall', params.paywall === true)
  addSimpleTagFilter(filter, 'payment', params.payment === true)
  addValueTagFilter(filter, 'series', params.seriesId)
--- a/lib/nostrTagSystemTypes.ts
+++ b/lib/nostrTagSystemTypes.ts
@ -4,6 +4,7 @@
 * - #sciencefiction or #research: for category
 * - #author, #series, #publication, #quote: for type
 * - #id_<id>: for identifier
+ * - #service: service identifier (e.g., "zapwall.fr") to filter all notes from this platform
 * - #payment (optional): for payment notes
 *
 * Everything is a Nostr note (kind 1)
@ -17,6 +18,9 @@ export interface BaseTags {
  type: TagType
  category: TagCategory
  id: string
+  service: string // Service identifier (e.g., "zapwall.fr")
+  version?: number // Version number (0 by default, incremented on updates)
+  hidden?: boolean // Hidden flag (true to hide/delete, false or undefined to show)
  paywall?: boolean
  payment?: boolean
 }
--- a/lib/objectModification.ts
+++ b/lib/objectModification.ts
@ -0,0 +1,97 @@
+/**
+ * Object modification and deletion utilities
+ * Only the author (pubkey) who published the original note can modify or delete it
+ *
+ * Access rules:
+ * - Modification: Only the author (event.pubkey === userPubkey) can modify
+ * - Deletion: Only the author (event.pubkey === userPubkey) can delete
+ * - Read access: All users can read previews, paid content requires payment verification
+ */
+
+import type { Event } from 'nostr-tools'
+import { extractTagsFromEvent } from './nostrTagSystem'
+import { canModifyObject, getNextVersion } from './versionManager'
+
+/**
+ * Check if user can modify an object
+ * Only the author (pubkey) who published the original note can modify it
+ */
+export function canUserModifyObject(event: Event, userPubkey: string): boolean {
+  return canModifyObject(event, userPubkey)
+}
+
+/**
+ * Build an update event (new version)
+ * Increments version and keeps the same hash ID
+ */
+export async function buildUpdateEvent(
+  originalEvent: Event,
+  updatedData: Record<string, unknown>,
+  userPubkey: string
+): Promise<Event | null> {
+  // Check if user can modify
+  if (!canUserModifyObject(originalEvent, userPubkey)) {
+    throw new Error('Only the author can modify this object')
+  }
+
+  const tags = extractTagsFromEvent(originalEvent)
+  const nextVersion = getNextVersion([originalEvent])
+
+  // Build new event with incremented version
+  // The hash ID stays the same, only version changes
+  const newTags = originalEvent.tags.map((tag) => {
+    if (tag[0] === 'version') {
+      return ['version', nextVersion.toString()]
+    }
+    return tag
+  })
+
+  // Remove hidden tag if present (object is being updated, not deleted)
+  const filteredTags = newTags.filter((tag) => !(tag[0] === 'hidden' && tag[1] === 'true'))
+
+  return {
+    ...originalEvent,
+    tags: filteredTags,
+    created_at: Math.floor(Date.now() / 1000),
+    // Content and other fields should be updated by the caller
+  } as Event
+}
+
+/**
+ * Build a delete event (hide object)
+ * Sets hidden=true and increments version
+ */
+export async function buildDeleteEvent(
+  originalEvent: Event,
+  userPubkey: string
+): Promise<Event | null> {
+  // Check if user can modify
+  if (!canUserModifyObject(originalEvent, userPubkey)) {
+    throw new Error('Only the author can delete this object')
+  }
+
+  const tags = extractTagsFromEvent(originalEvent)
+  const nextVersion = getNextVersion([originalEvent])
+
+  // Build new event with hidden=true and incremented version
+  const newTags = originalEvent.tags.map((tag) => {
+    if (tag[0] === 'version') {
+      return ['version', nextVersion.toString()]
+    }
+    if (tag[0] === 'hidden') {
+      return ['hidden', 'true']
+    }
+    return tag
+  })
+
+  // Add hidden tag if not present
+  if (!newTags.some((tag) => tag[0] === 'hidden')) {
+    newTags.push(['hidden', 'true'])
+  }
+
+  return {
+    ...originalEvent,
+    tags: newTags,
+    created_at: Math.floor(Date.now() / 1000),
+  } as Event
+}
--- a/lib/platformConfig.ts
+++ b/lib/platformConfig.ts
@ -1,29 +1,3 @@
 export const PLATFORM_NPUB = 'npub18s03s39fa80ce2n3cmm0zme3jqehc82h6ld9sxq03uejqm3d05gsae0fuu'
 export const PLATFORM_BITCOIN_ADDRESS = 'bc1qerauk5yhqytl6z93ckvwkylup8s0256uenzg9y'
-
-import { getPlatformLightningAddress as getAddress, getPlatformLightningAddressSync as getAddressSync } from './config'
-
-/**
- * Platform Lightning address for receiving commissions
- * This should be configured with the platform's Lightning node
- * Format: user@domain.com or LNURL
- *
- * @deprecated Use getPlatformLightningAddress() or getPlatformLightningAddressSync() instead
- */
-export const PLATFORM_LIGHTNING_ADDRESS = ''
-
-/**
- * Get platform Lightning address (async)
- * Uses IndexedDB if available, otherwise returns default
- */
-export async function getPlatformLightningAddress(): Promise<string> {
-  return getAddress()
-}
-
-/**
- * Get platform Lightning address (sync)
- * Returns default if IndexedDB is not ready
- */
-export function getPlatformLightningAddressSync(): string {
-  return getAddressSync()
-}
+export const PLATFORM_SERVICE = 'zapwall.fr'
--- a/lib/presentationParsing.ts
+++ b/lib/presentationParsing.ts
@ -2,13 +2,45 @@ import type { Article } from '@/types/nostr'

 /**
 * Extract presentation data from article content
- * Content format: "${presentation}\n\n---\n\nDescription du contenu :\n${contentDescription}"
+ * Supports two formats:
+ * 1. Old format: "${presentation}\n\n---\n\nDescription du contenu :\n${contentDescription}"
+ * 2. New format: "Nouveau profil publié sur zapwall.fr\n<url>\n<photo>\nPrésentation personnelle : <presentation>\nDescription de votre contenu : <description>\nAdresse Bitcoin mainnet (pour le sponsoring) : <adresse>\n\n---\n\n[Metadata JSON]\n<json>"
+ * The profile JSON is stored in the [Metadata JSON] section of the content, not in tags
 */
 export function extractPresentationData(presentation: Article): {
  presentation: string
  contentDescription: string
 } {
  const content = presentation.content
+
+  // Try new format first
+  const newFormatMatch = content.match(/Présentation personnelle : (.+?)(?:\nDescription de votre contenu :|$)/s)
+  const descriptionMatch = content.match(/Description de votre contenu : (.+?)(?:\nAdresse Bitcoin mainnet|$)/s)
+
+  if (newFormatMatch && descriptionMatch) {
+    return {
+      presentation: newFormatMatch[1].trim(),
+      contentDescription: descriptionMatch[1].trim(),
+    }
+  }
+
+  // Try to extract from JSON metadata section
+  const jsonMatch = content.match(/\[Metadata JSON\]\n(.+)$/s)
+  if (jsonMatch) {
+    try {
+      const profileJson = JSON.parse(jsonMatch[1].trim())
+      if (profileJson.presentation && profileJson.contentDescription) {
+        return {
+          presentation: profileJson.presentation,
+          contentDescription: profileJson.contentDescription,
+        }
+      }
+    } catch (e) {
+      // JSON parsing failed, continue with old format
+    }
+  }
+
+  // Fallback to old format
  const separator = '\n\n---\n\nDescription du contenu :\n'
  const separatorIndex = content.indexOf(separator)

--- a/lib/reviews.ts
+++ b/lib/reviews.ts
@ -4,11 +4,13 @@ import type { Review } from '@/types/nostr'
 import { parseReviewFromEvent } from './nostrEventParsing'
 import { buildTagFilter } from './nostrTagSystem'
 import { getPrimaryRelaySync } from './config'
+import { PLATFORM_SERVICE } from './platformConfig'

 function buildReviewFilters(articleId: string) {
  const tagFilter = buildTagFilter({
    type: 'quote',
    articleId,
+    service: PLATFORM_SERVICE,
  })

  const filterObj: {
--- a/lib/seriesQueries.ts
+++ b/lib/seriesQueries.ts
@ -4,11 +4,13 @@ import type { Series } from '@/types/nostr'
 import { parseSeriesFromEvent } from './nostrEventParsing'
 import { buildTagFilter } from './nostrTagSystem'
 import { getPrimaryRelaySync } from './config'
+import { PLATFORM_SERVICE } from './platformConfig'

 function buildSeriesFilters(authorPubkey: string) {
  const tagFilter = buildTagFilter({
    type: 'series',
    authorPubkey,
+    service: PLATFORM_SERVICE,
  })

  return [
@ -62,6 +64,7 @@ function buildSeriesByIdFilters(seriesId: string) {
      ids: [seriesId],
      ...buildTagFilter({
        type: 'series',
+        service: PLATFORM_SERVICE,
      }),
    },
  ]
--- a/lib/sponsoring.ts
+++ b/lib/sponsoring.ts
@ -2,6 +2,7 @@ import { nostrService } from './nostr'
 import type { Article } from '@/types/nostr'
 import { getPrimaryRelaySync } from './config'
 import { buildTagFilter, extractTagsFromEvent } from './nostrTagSystem'
+import { PLATFORM_SERVICE } from './platformConfig'

 function subscribeToPresentation(pool: import('nostr-tools').SimplePool, pubkey: string): Promise<number> {
  const filters = [
@ -9,6 +10,7 @@ function subscribeToPresentation(pool: import('nostr-tools').SimplePool, pubkey:
      ...buildTagFilter({
        type: 'author',
        authorPubkey: pubkey,
+        service: PLATFORM_SERVICE,
      }),
      limit: 1,
    },
--- a/lib/urlGenerator.ts
+++ b/lib/urlGenerator.ts
@ -0,0 +1,56 @@
+/**
+ * Generate URLs for objects in the format:
+ * https://zapwall.fr/<object_type_name>/<id_hash>_<index>_<version>
+ *
+ * - object_type_name: author, series, publication, review
+ * - id_hash: SHA-256 hash of the object
+ * - index: number of objects of the same type with the same hash (0 by default)
+ * - version: version number (0 by default)
+ */
+
+export type ObjectTypeName = 'author' | 'series' | 'publication' | 'review'
+
+/**
+ * Generate URL for an object
+ */
+export function generateObjectUrl(
+  objectType: ObjectTypeName,
+  idHash: string,
+  index: number = 0,
+  version: number = 0
+): string {
+  return `https://zapwall.fr/${objectType}/${idHash}_${index}_${version}`
+}
+
+/**
+ * Parse URL to extract object information
+ */
+export function parseObjectUrl(url: string): {
+  objectType: ObjectTypeName | null
+  idHash: string | null
+  index: number | null
+  version: number | null
+} {
+  const match = url.match(/https?:\/\/zapwall\.fr\/(author|series|publication|review)\/([a-f0-9]+)_(\d+)_(\d+)/i)
+  if (!match) {
+    return { objectType: null, idHash: null, index: null, version: null }
+  }
+
+  return {
+    objectType: match[1] as ObjectTypeName,
+    idHash: match[2],
+    index: parseInt(match[3], 10),
+    version: parseInt(match[4], 10),
+  }
+}
+
+/**
+ * Get the object type name from tag type
+ */
+export function getObjectTypeName(tagType: 'author' | 'series' | 'publication' | 'quote'): ObjectTypeName {
+  // Map 'quote' to 'review' for URLs
+  if (tagType === 'quote') {
+    return 'review'
+  }
+  return tagType
+}
--- a/lib/versionManager.ts
+++ b/lib/versionManager.ts
@ -0,0 +1,139 @@
+/**
+ * Version management for objects
+ * Handles versioning and hiding of objects
+ * Only the author (pubkey) who published the original note can modify or delete it
+ */
+
+import type { Event } from 'nostr-tools'
+import { extractTagsFromEvent } from './nostrTagSystem'
+
+export interface VersionedObject {
+  event: Event
+  version: number
+  hidden: boolean
+  pubkey: string
+  id: string
+}
+
+/**
+ * Filter events to get only the latest version that is not hidden
+ * Groups events by ID and returns the one with the highest version that is not hidden
+ */
+export function getLatestVersion(events: Event[]): Event | null {
+  if (events.length === 0) {
+    return null
+  }
+
+  // Group by ID and find the latest non-hidden version
+  const byId = new Map<string, VersionedObject[]>()
+
+  for (const event of events) {
+    const tags = extractTagsFromEvent(event)
+    if (!tags.id) {
+      continue
+    }
+
+    if (!byId.has(tags.id)) {
+      byId.set(tags.id, [])
+    }
+
+    byId.get(tags.id)!.push({
+      event,
+      version: tags.version,
+      hidden: tags.hidden,
+      pubkey: event.pubkey,
+      id: tags.id,
+    })
+  }
+
+  // For each ID, find the latest non-hidden version
+  const latestVersions: VersionedObject[] = []
+
+  for (const objects of byId.values()) {
+    // Filter out hidden objects
+    const visible = objects.filter((obj) => !obj.hidden)
+
+    if (visible.length === 0) {
+      // All versions are hidden, skip this object
+      continue
+    }
+
+    // Sort by version (descending) and take the first (latest)
+    visible.sort((a, b) => b.version - a.version)
+    latestVersions.push(visible[0])
+  }
+
+  // If we have multiple IDs, we need to return the one with the highest version
+  // But typically we expect one ID per query, so return the first
+  if (latestVersions.length === 0) {
+    return null
+  }
+
+  // Sort by version and return the latest
+  latestVersions.sort((a, b) => b.version - a.version)
+  return latestVersions[0].event
+}
+
+/**
+ * Get all versions of an object (for version history)
+ */
+export function getAllVersions(events: Event[]): VersionedObject[] {
+  const versions: VersionedObject[] = []
+
+  for (const event of events) {
+    const tags = extractTagsFromEvent(event)
+    if (!tags.id) {
+      continue
+    }
+
+    versions.push({
+      event,
+      version: tags.version,
+      hidden: tags.hidden,
+      pubkey: event.pubkey,
+      id: tags.id,
+    })
+  }
+
+  // Sort by version (descending)
+  versions.sort((a, b) => b.version - a.version)
+  return versions
+}
+
+/**
+ * Check if a user can modify or delete an object
+ * Only the original author (pubkey) can modify/delete
+ */
+export function canModifyObject(event: Event, userPubkey: string): boolean {
+  return event.pubkey === userPubkey
+}
+
+/**
+ * Get the next version number for an object
+ * Finds the highest version and increments it
+ */
+export function getNextVersion(events: Event[]): number {
+  if (events.length === 0) {
+    return 0
+  }
+
+  let maxVersion = -1
+  for (const event of events) {
+    const tags = extractTagsFromEvent(event)
+    if (tags.version > maxVersion) {
+      maxVersion = tags.version
+    }
+  }
+
+  return maxVersion + 1
+}
+
+/**
+ * Count objects with the same hash ID (for index calculation)
+ */
+export function countObjectsWithSameHash(events: Event[], hashId: string): number {
+  return events.filter((event) => {
+    const tags = extractTagsFromEvent(event)
+    return tags.id === hashId
+  }).length
+}
--- a/locales/en.txt
+++ b/locales/en.txt
@ -110,6 +110,11 @@ common.loading=Loading...
 common.loading.articles=Loading articles...
 common.loading.authors=Loading authors...
 common.error=Error
+common.error.noContent=No content found
+common.empty.articles=No articles found. Check back later!
+common.empty.articles.filtered=No articles match your search or filters.
+common.empty.authors=No authors found. Check back later!
+common.empty.authors.filtered=No authors match your search or filters.
 common.back=Back
 common.open=Open

--- a/locales/fr.txt
+++ b/locales/fr.txt
@ -110,6 +110,11 @@ common.loading=Chargement...
 common.loading.articles=Chargement des articles...
 common.loading.authors=Chargement des auteurs...
 common.error=Erreur
+common.error.noContent=Aucun contenu trouvé
+common.empty.articles=Aucun article trouvé. Revenez plus tard !
+common.empty.articles.filtered=Aucun article ne correspond à votre recherche ou à vos filtres.
+common.empty.authors=Aucun auteur trouvé. Revenez plus tard !
+common.empty.authors.filtered=Aucun auteur ne correspond à votre recherche ou à vos filtres.
 common.back=Retour
 common.open=Ouvrir

--- a/pages/api/nip95-upload.ts
+++ b/pages/api/nip95-upload.ts
@ -72,15 +72,15 @@ export default async function handler(req: NextApiRequest, res: NextApiResponse)

          // Recreate FormData for each request (needed for redirects)
          const requestFormData = new FormData()
-          const fileStream = fs.createReadStream(fileField.filepath)
+    const fileStream = fs.createReadStream(fileField.filepath)

          // Use 'file' as field name (standard for NIP-95, but some endpoints may use different names)
          // Note: nostrimg.com might expect a different field name - if issues persist, try 'image' or 'upload'
          const fieldName = 'file'
          requestFormData.append(fieldName, fileStream, {
-            filename: fileField.originalFilename || fileField.newFilename || 'upload',
-            contentType: fileField.mimetype || 'application/octet-stream',
-          })
+      filename: fileField.originalFilename || fileField.newFilename || 'upload',
+      contentType: fileField.mimetype || 'application/octet-stream',
+    })

          const isHttps = url.protocol === 'https:'
          const clientModule = isHttps ? https : http
@ -99,12 +99,12 @@ export default async function handler(req: NextApiRequest, res: NextApiResponse)
          if (url.hostname.includes('nostrimg.com')) {
            console.log('NIP-95 proxy request to nostrimg.com:', {
              url: url.toString(),
-              method: 'POST',
+        method: 'POST',
              fieldName,
              filename: fileField.originalFilename || fileField.newFilename || 'upload',
              contentType: fileField.mimetype || 'application/octet-stream',
              fileSize: fileField.size,
-              headers: {
+        headers: {
                'Content-Type': headers['content-type'],
                'Accept': headers['Accept'],
                'User-Agent': headers['User-Agent'],
@ -178,7 +178,7 @@ export default async function handler(req: NextApiRequest, res: NextApiResponse)
                statusCode: statusCode,
                statusMessage: proxyResponse.statusMessage || 'Internal Server Error',
                body: body,
-              })
+      })
            })
            proxyResponse.on('error', (error) => {
              reject(error)
--- a/public/locales/en.txt
+++ b/public/locales/en.txt
@ -110,6 +110,11 @@ common.loading=Loading...
 common.loading.articles=Loading articles...
 common.loading.authors=Loading authors...
 common.error=Error
+common.error.noContent=No content found
+common.empty.articles=No articles found. Check back later!
+common.empty.articles.filtered=No articles match your search or filters.
+common.empty.authors=No authors found. Check back later!
+common.empty.authors.filtered=No authors match your search or filters.
 common.back=Back
 common.open=Open

--- a/public/locales/fr.txt
+++ b/public/locales/fr.txt
@ -110,6 +110,11 @@ common.loading=Chargement...
 common.loading.articles=Chargement des articles...
 common.loading.authors=Chargement des auteurs...
 common.error=Erreur
+common.error.noContent=Aucun contenu trouvé
+common.empty.articles=Aucun article trouvé. Revenez plus tard !
+common.empty.articles.filtered=Aucun article ne correspond à votre recherche ou à vos filtres.
+common.empty.authors=Aucun auteur trouvé. Revenez plus tard !
+common.empty.authors.filtered=Aucun auteur ne correspond à votre recherche ou à vos filtres.
 common.back=Retour
 common.open=Ouvrir