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 0x29956227e3b78728c807e0bc32ea2a508240b9ad772275a119cb90d50ae5fdd4. 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/a5b18b18-ee7b-4c0a-b183-eb307450d4ee.json and https://artists.proofprofile.net/proofs/artist/a5b18b18-ee7b-4c0a-b183-eb307450d4ee.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0x8893259805d45fbf446616e325c6546000e9ee2dfb3f729936aa193b04155e7a. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/FRY689802810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74a5064260e4ebfe76b224b9fb808a96978fb6dc4f812b1f5dca054baaefc7cb. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/FRY689802870.
Boxe avec les mots - Remix K.O. Technique
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6424f84a724fe8280817fca60d5c543b2d521096171b394827a1949dbad0e41. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T20:08:55Z), 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/FRY689802941.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcffd71a0248fe1a019e53b5e78a8725c0a8d6f55ac46c3a4ae6adccb14ea7eb1. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/FRQ990200170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x002f7543f45b181aad0d890627005a4fbfcb16adebfe2a57af1cd5509ce86e82. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/FRQ990200130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5829f65601ae70c3738f6b6109afbccf38edc0cc5f7474b7fc07e519be59c077. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/FRQ990200180.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe30c4f6f603f68953704e9e4bac80140310389d7a955f7cd65c629c69375f4b0. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/FRQ990200060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1301a88c53e188d6e2a5652c6748b60667b667f85b0c8437a094449d2ce7cec0. Chain 2 (Bitcoin): anchored in block 958738 (2026-07-19T15:53:46Z), 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/FRQ990200050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a1b431e4d699e6833515de2de2e2efe6dd345175ee71c4e1ac12cf48392f8dc. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/FRZ110700897.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47b9aba2f8dbba4eec061c7ba74f12deed025f043ba4f9ada71ff97ac45632d2. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T18:39:47Z), 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/FRQ990200150.
Thérapie de groupe (feat. Tequila & Kazkami)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8a919283e426780c2e8be7ae8e8bab00deab7e89f195f39adf794c9260d1aa3. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T13:49:37Z), 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/FRQ990200070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94bac8e2edfb42f601127f8b686831d1a42f1c29b684261d8ce64e58a7263df1. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/FRQ990200140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda84dafa57508dcd73ee12680b4c1a284fe85036b611b00ea2adb7484b658c19. Chain 2 (Bitcoin): anchored in block 959031 (2026-07-21T18:43:13Z), 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/FRQ990200120.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd7babd6e031cc2f0f873fbf9d3db5c184633cf4408f8d83110ebb46c3b084c1. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/FRZ110700898.
Shaolin / 6ème chaudron - feat. RZA (Wu-Tang Clan)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90f02c35d22ef15d07701968a0d7170a588f5e7b7a4eb0162beff2c316df820e. 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/FRZ110700899.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10f7325da6862b46e60764ef793eeb7afefd45a4e058c21d6e826d19d2cdc9da. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/FRZ110200612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5093fc694009fa5fcc7e27adf57dd7788f2ad1195f6c38955bcec648810c5e3. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/FRQ990201805.
L'enfer remonte à la surface - Remasterisé en 2006
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71054145af20c967459590cdf5dc12e332a4e1792e7670998bd5f1297f68a629. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/FRZ110700895.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd3921e0ce2d5fc9abb33e16413ece8b428668aefab4e27b6c9a63f80ba80440. Chain 2 (Bitcoin): anchored in block 958378 (2026-07-17T06:45:39Z), 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/FRY689802890.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaac59a3ca1907a467edf5e6d25d19f0539ede7ee8b51b9dae9557a512cd81bfd. 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/FRY689802840.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92d3a03fc2f381f2e6d894d01658dfd708c22311864386677a7f02e7d06bc197. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:27:49Z), 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/FRY680500038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9164a94c9ec794d6aef6358be96a0c5b2d354de00ae4ad8d45bb368ee8a18124. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/FRQ999900250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc564dede87c516a02b2b0082ffb8aee7061c7cb95963bdcb6f1da2ae425aec89. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T17:28:33Z), 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/FRQ999800001.
Tous au paradis (feat. Jane Fostin) [From "Trafic d'influence"]
Tous au paradis - From "Trafic d'influence"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e090bdcaeec4f2a9528026f61efd96c5e4918afed1722489a881d1c7ac43ab7. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/UKA2Q1500001.
Boxe avec les mots (Live Hip Hop Symphonique Saison 1)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45335b0f5f85f919598ac0a3d5ceb188f90fac7dc318ec51b0ecbc51d149de03. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/FRZ189800117.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc6b0b20390b23fd9fd4beb52fee7bc5c623658f987883fc2fc7660afff2c3eb. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/FR6V80258151.