1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x216023173ca140ac63ea96c53b2940054615d1b8859101f716f88a3e3c38f498. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bf3dcfd4-d0fa-4023-b6fd-8e1d239c2b0f.json and https://artists.proofprofile.net/proofs/artist/bf3dcfd4-d0fa-4023-b6fd-8e1d239c2b0f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Bachariyat el arba'a (Quran - Coran - Islam - Discours - Dourous)
Khotba Aid el Adha (Quran - Coran - Islam - Discours - Dourous)
Seba'toun youdilohom Allah bi dilih - wafat hamamat el Masjid (Quran - Coran - Islam - Discours - Dourous)
Zeinab wa El Hussein (Quran - Coran - Islam - Discours - Dourous)
Taraif Kishk (Quran - Coran - Islam - Discours - Dourous)
Qissat Thawbane (Quran - Coran - Islam - Discours - Dourous)
Rijal salihine ala firach mawt - At taqwa (Quran - Coran - Islam - Discours - Dourous)
Machahid El Qiyamah (Quran - Coran - Islam - Discours - Dourous)
A Chohada (Quran - Coran - Islam - Discours - Dourous)
Ma da yaqol Al Kadhafi an Omar ibn El Khattab (Quran - Coran - Islam - Discours - Dourous)
Tahdir wa khamss nawahi wa amr (Quran - Coran - Islam - Discours - Dourous)
Al badane sabir wa zawja el moti'a (Quran - Coran - Islam - Discours - Dourous)
Salmane El Farissi (Quran - Coran - Islam - Discours - Dourous)
Adab El Qabr wa na'imoh - Le châtiment de la tombe (Quran - Coran - Islam - Discours - Dourous)
Hafl takrim Adam (Quran - Coran - Islam - Discours - Dourous)
Al Aqida (Quran - Coran - Islam - Discours - Dourous)
Wafat Abu Bakr Siddiq (Quran - Coran - Islam - Discours - Dourous)
Chorot al hajj - 340 (Quran - Coran - Islam)
Al masjid al aqsa - 310 (Quran - Coran - Islam)
Bacha'ir qabla milado rassoul - 315 (Quran - Coran - Islam)
Assayo ala al armala - 335 (Quran - Coran - Islam)
Al qada wal qadar - 308 (Quran - Coran - Islam)
As Salah - La prière - 333 (Quran - Coran - Islam)
Al hissab yawm el qiyamah - 311 (Quran - Coran - Islam)
Al aqidato el islamiyah - 300 (Quran - Coran - Islam)
Assbab nasr wal hazimah - 351 (Quran - Coran - Islam)
Charkhssiyato rassoul - 314 (Quran - Coran - Islam)
Attiqa bil yaqine billah - 299 (Quran - Coran - Islam)
Assiyam ma baada Ramadan - 328 (Quran - Coran - Islam)
Hadith baynaho wa bayna ahad assdiqaih - 359 (Quran - Coran - Islam)
Ar rassoul fi bayt abu talib - 319 (Quran - Coran - Islam)
Al aqidato assafiyah - 346 (Quran - Coran - Islam)
Chahr Ramadan - 326 (Quran - Coran - Islam)
Bayt sayidina zakariya - 309 (Quran - Coran - Islam)
Hadithat el masjid al haram - 342 (Quran - Coran - Islam)
Zayd ibn harith - 356 (Quran - Coran - Islam)
Ray kahdija fi mohamed - 353 (Quran - Coran - Islam)
Mo'amalat bayna el hadir wal madi - 354 (Quran - Coran - Islam)
Sowar min hayat el habib - 360 (Quran - Coran - Islam)
Milado rassoul - 304 (Quran - Coran - Islam)
Mada ba'da ramadan - 320 (Quran - Coran - Islam)
Mahkamato el islam el olya - 345 (Quran - Coran - Islam)
Hijrat ar rassoul - 344 (Quran - Coran - Islam)
Ma3a Abdullah ibn amro - 350 (Quran - Coran - Islam)
Mohamed saw - 341 (Quran - Coran - Islam)
Mata toqbal el ibadat - 329 (Quran - Coran - Islam)
Ila madinat rassoulillah - 327 (Quran - Coran - Islam)
Ziyarah ila mina - 338 (Quran - Coran - Islam)
Kayfa nata3alam al Islam - 347 (Quran - Coran - Islam)
Rissala min khayr muslim - 343 (Quran - Coran - Islam)
Qissat sayidina issa wa oumoho maryam - 312 (Quran - Coran - Islam)
Kola chayine ahssaynaho kitaba - 352 (Quran - Coran - Islam)
Sowar min hayat rassoul - 313 (Quran - Coran - Islam)
Sirat amina, halima, oum aymen - 316 (Quran - Coran - Islam)
Ray arrassoul fi nidam el hokm - 336 (Quran - Coran - Islam)
Ar rassoul inda amina, halima, oum aymen - 317 (Quran - Coran - Islam)
Mohakamat sayidina ibrahim - 339 (Quran - Coran - Islam)
Ar rassoul wa khadija - 321 (Quran - Coran - Islam)