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 0x67109417948057bca1707b131596b04dafdc4096a324ea0fe77b5857b3ba0ccb. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/faadcec2-97f0-4fbe-a9b7-6a05ec90bea6.json and https://artists.proofprofile.net/proofs/artist/faadcec2-97f0-4fbe-a9b7-6a05ec90bea6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Sourate Al Fatiha - Récitation marocaine
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 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 0x9b4e7103199081a9a408d8ed6323c7d43b2f49e864087493bb7acb4e2f6e7744. Chain 2 (Bitcoin): anchored in block 959088 (2026-07-22T02:14:33Z), 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/FR6V82468352.
Sourate Al Infitar - Récitation marocaine
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc35f7039f4b94d8b71704512b2aad569413373064e21238cc77559a3009c36ec. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/FR6V82468358.
Sourate Al Mutaffifine - Récitation marocaine
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1054d0f3c2987722550c49c878dfae6eaff91d19fc9c8b906a3455f47c24c6dd. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/FR6V82468359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50c3acd9655a5fda86f83a1552bab7d3e56e11a7a73c7b7a17eaa01e47d13e3a. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/FR6V82468361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4138155971210c875d4cd8d802d7d9598e65e6c6ca9f7594060dfa35429ef595. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/FR6V82468362.
Sourate Al Gashiyah - Récitation marocaine
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8826840295bbf515639693d6ec711592529e327b35de9e45dfde03b339ced690. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/FR6V82457989.
Sourate Ach Chams - Récitation marocaine
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d0696c370364d7d7bcf6519aaa319a6674650eaf99defe50dbe74599ab66b1e. Chain 2 (Bitcoin): anchored in block 959087 (2026-07-22T02:05:55Z), 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/FR6V82457992.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a9f0e09146d6c736c14622d4b8d5cf19701b5f175c235816973c824b8869182. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/FR6V82457994.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x721b0ae9b9549e4ba88e8a5f9d213eb345df3bfef2c5e80ef6c78e602e7d74d4. Chain 2 (Bitcoin): anchored in block 958673 (2026-07-19T05:38:28Z), 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/FR6V82457996.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x863fdb3743f7d2c87d1b84256f67c9c82ad438b9bcd5c18e2a87bb8e75a70749. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/FR6V82457997.
Sourate Az Zalzalah - Récitation marocaine
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfca54b3b0a3a59c121e67f089cd34a6e20a88fcbd4dea7f006299631efba50d1. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T18:01:47Z), 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/FR6V82458000.
Sourate Al Adiyate - Récitation marocaine
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x649ce37faf2afc988e50ab2e89995b7fb7880df9b0a3181b7dddb1c2a5dad9c5. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/FR6V82458001.
Soirée andalouse, vol. 2 (Quran - Coran - Islam)
Soirée andalouse, vol. 1 (Quran - Coran - Islam)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a407c86fc50016f4c0ccc7dc2c4ef28fcd87cebd9446188280ae760b91fd02b. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/FR2X41442722.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa575882832564c72327392426cf55fa02cdaa6f3fbe8affa9788c5a70aa0806a. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/FR2X41442723.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c8734c6268b865cf3874fbe60d5dee369982096ebfa1b10fb2e55f6b1d1a551. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/FR10S1564535.