src/pages/create/index.tsx

@@ -20,7 +20,7 @@ import {
   CreateSignatureEventContent,
   Meta,
   ProfileMetadata,
-  Timestamp,
+  SignedEvent,
   User,
   UserRole
 } from '../../types'
@@ -62,7 +62,7 @@ import {
   faUpload
 } from '@fortawesome/free-solid-svg-icons'
 import { SigitFile } from '../../utils/file.ts'
-import { generateTimestamps } from '../../utils/opentimestamps.ts'
+import { generateTimestamp } from '../../utils/opentimestamps.ts'
 
 export const CreatePage = () => {
   const navigate = useNavigate()
@@ -560,8 +560,7 @@ export const CreatePage = () => {
     fileHashes: {
       [key: string]: string
     },
-    zipUrl: string,
+    zipUrl: string
-    timestamps?: Timestamp[]
   ) => {
     const content: CreateSignatureEventContent = {
       signers: signers.map((signer) => hexToNpub(signer.pubkey)),
@@ -569,8 +568,7 @@ export const CreatePage = () => {
       fileHashes,
       markConfig,
       zipUrl,
-      title,
+      title
-      ...(timestamps && { timestamps })
     }
 
     setLoadingSpinnerDesc('Signing nostr event for create signature')
@@ -602,6 +600,11 @@ export const CreatePage = () => {
     return receivers.map((receiver) => sendNotification(receiver, meta))
   }
 
+  const extractNostrId = (stringifiedEvent: string): string => {
+    const e = JSON.parse(stringifiedEvent) as SignedEvent
+    return e.id
+  }
+
   const handleCreate = async () => {
     try {
       if (!validateInputs()) return
@@ -611,10 +614,6 @@ export const CreatePage = () => {
       const fileHashes = await generateFileHashes()
       if (!fileHashes) return
 
-      setLoadingSpinnerDesc('Timestamping your files')
-      const timestamps = await generateTimestamps(Object.values(fileHashes))
-      if (!timestamps) return
-
       setLoadingSpinnerDesc('Generating encryption key')
       const encryptionKey = await generateEncryptionKey()
 
@@ -639,8 +638,7 @@ export const CreatePage = () => {
         const createSignature = await generateCreateSignature(
           markConfig,
           fileHashes,
-          fileUrl,
+          fileUrl
-          timestamps
         )
         if (!createSignature) return
 
@@ -656,6 +654,10 @@ export const CreatePage = () => {
         const keys = await generateKeys(pubkeys, encryptionKey)
         if (!keys) return
 
+        const timestamp = await generateTimestamp(
+          extractNostrId(createSignature)
+        )
+
         const meta: Meta = {
           createSignature,
           keys,
@@ -663,6 +665,10 @@ export const CreatePage = () => {
           docSignatures: {}
         }
 
+        if (timestamp) {
+          meta.timestamps = [timestamp]
+        }
+
         setLoadingSpinnerDesc('Updating user app data')
         const event = await updateUsersAppData(meta)
         if (!event) return

src/types/core.ts

@@ -18,6 +18,7 @@ export interface Meta {
   docSignatures: { [key: `npub1${string}`]: string }
   exportSignature?: string
   keys?: { sender: string; keys: { [user: `npub1${string}`]: string } }
+  timestamps?: Timestamp[]
 }
 
 export interface CreateSignatureEventContent {
@@ -27,13 +28,11 @@ export interface CreateSignatureEventContent {
   markConfig: Mark[]
   title: string
   zipUrl: string
-  timestamps?: Timestamp[]
 }
 
 export interface SignedEventContent {
   prevSig: string
   marks: Mark[]
-  timestamps: Timestamp[]
 }
 
 export interface Sigit {
@@ -42,7 +41,7 @@ export interface Sigit {
 }
 
 export interface Timestamp {
-  fileHash: string
+  nostrId: string
   timestamp: string
 }
 

src/utils/opentimestamps.ts

@@ -1,28 +1,26 @@
 import { Timestamp } from '../types'
-import { isPromiseFulfilled } from './utils.ts'
+import { retry } from './retry.ts'
-import { retryAll } from './retry.ts'
 import { bytesToHex, hexToBytes } from '@noble/hashes/utils'
 
 /**
- * Generates a timestamp for the provided document hashes.
+ * Generates a timestamp for the provided nostr event ID.
- * @returns Timestamp in a hex string format
+ * @returns Timestamp with its value and the nostr event ID.
  */
-export const generateTimestamps = async (
+export const generateTimestamp = async (
-  fileHashes: string[]
+  nostrId: string
-): Promise<Timestamp[] | undefined> => {
+): Promise<Timestamp | undefined> => {
-  const promises = fileHashes.map((fileHash) => () => timestamp(fileHash))
+  try {
-  const resolvedPromises = await retryAll(promises)
-  if (resolvedPromises.every(isPromiseFulfilled)) {
-    return resolvedPromises.map(({ value }, index) => {
     return {
-        fileHash: fileHashes[index],
+      timestamp: await retry(() => timestamp(nostrId)),
-        timestamp: value
+      nostrId: nostrId
     }
-    })
+  } catch (error) {
+    console.error(error)
+    return
   }
 }
 
-const timestamp = async (hash: string) => {
+const timestamp = async (hash: string): Promise<string> => {
   const detachedTimestamp =
     window.OpenTimestamps.DetachedTimestampFile.fromHash(
       new window.OpenTimestamps.Ops.OpSHA256(),