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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3396994e13ccbb96b6d1e71f79a66d64c347edc5ff583fa4430e7ff4c454f75f. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1f47feb8-9ba6-4569-aee0-a084fad3b724.json and https://artists.proofprofile.net/proofs/artist/1f47feb8-9ba6-4569-aee0-a084fad3b724.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Juzz Tabarak (Quran - Coran - Récitation Coranique - islam)
Sourate Al Haqqa - Celle qui montre la vérité
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 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. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaeb0487ec8b0cceaff94bead8385c55d7028e439223688b88749cec61fc79e51. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR6V81238140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5498088b44fc0b9a9eea3527fa0792b37cee474beec44120606902b3b5cf780d. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR6V81238144.
Juzz Qad Sami (Quran - Coran - Récitation Coranique - Islam)
Sourates Al-Dariyat, Al-Tor, Al-Najm, Al-Qamar, Al-Rahmane, Al Waqi'a, Al Hadid (Quran - Coran - Islam - Récitation coranique)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeee38b1b832d5b411774b7c3ed12efcf42d182fe9b5757882b74ab15f9e9d71d. Chain 2 (Bitcoin): anchored in block 957723 (2026-07-12T15:34:17Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR6V80232327.
Sourate Al Baqara, pt. 1 (Quran - Coran - Islam)
Sourates Room, Loqmane, Sad et Shuaara avec Adhane (Quran - Coran - Islam)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f561aa8d87688f49a7a2079ad39646c68c694a02311a362730b7d4b5e544eae. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR6V80172693.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd525cf11123e9f65fbc32e548c6fa82ce8f208676d72f274328e807bef1dfbd3. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR6V80172697.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4d1c96bfc9a97cabb25f57c8a278868876d45ed9b4696ff4cd49b0296f503b5. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR6V80172700.