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 0x328b9a4f4d05b4a2d3b742ccb7a0df9dbc83f01e65a2c077535af59d07ee1982. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/83f93c36-6f6c-47d0-b8f9-e2a38f087ffb.json and https://artists.proofprofile.net/proofs/artist/83f93c36-6f6c-47d0-b8f9-e2a38f087ffb.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Juzz Tabarak (Quran - Coran - Récitation Coranique)
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 0xe87099b022f5ac48ba3e0db96d808778ce9521c3595710395f1415fcdbd415a0. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T13:49:23Z), 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/FR6V81238127.
Sourate Al Haqqa - Celle qui montre la vérité
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7372f44c062349c154a6961483bc3cd07336a693fd5c875befb06a3b28897530. Chain 2 (Bitcoin): anchored in block 958087 (2026-07-15T02:56:49Z), 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/FR6V81238128.
Sourate Al Ma'arij - Les voies d'ascension
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x467d7db51c3e0b1b2c7ceb84018a6a59abf531b4f5f269cbc6b66222fe4aaf61. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/FR6V81238129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad82999884403b704524fd86011e0e32991118e390ec322da04945e0681a9984. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), 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/FR6V81238133.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87c2e6bb5ce25f8e3ae3ff5347c7c948cb7009f4750860a811b2c02c7b58d620. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/FR6V81238136.
Juzz Qad Sami (Quran - Coran - Récitation Coranique - Islam)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10bf6ba3181b54820c198fe5fef234371caa1dec3dc854013803d72585ba8087. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/FR6V81254159.
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 0x8af7c0b435f1b273f398c8473613db1e44e4965fc06c551ece1859ed79ec74f3. Chain 2 (Bitcoin): anchored in block 958798 (2026-07-20T02:58:52Z), 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/FR6V80231420.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8c22fec3fe032f59461d60e784da4bbeb4405bf16a6769d2e3ffc7c4257e6c4. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/FR6V80231423.
Dua Khatm el Quran (Quran - Coran - Islam)
Les 7 sourates salvatrices (Quran - Coran - Islam)