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 0x65e86ed8bd2e0905813e60db9190ad542859d1c524c49b635e894b2bdcfebab0. 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/ba3cd1d7-26d2-4592-be03-9701f28c3f7f.json and https://artists.proofprofile.net/proofs/artist/ba3cd1d7-26d2-4592-be03-9701f28c3f7f.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 0x45d80366e756f7ebded50942aad700cf26b508edb60a0bb310ef88106aa3ca76. Chain 2 (Bitcoin): anchored in block 958392 (2026-07-17T09:46:31Z), 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/FR72X0300554.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59555f5a18a603c1bf3851a4c3a540c4058930e717b37bf227a17cd7935681d3. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/FR72X0300558.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5ed04406b33f7b7c47ccb968c99531369caae1d9a7ab8c462992b06ca5377fb. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T15:00:43Z), 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/FR72X0300563.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84f61453c113446f5ddd363d428303940245621fbc6ec854107c53ec12f42c58. 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/FR72X0300564.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bda32a61c7772458bfe1927596b7c235ea8be6c5b1ab08014462ad3feb051e2. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/FR72X0300565.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea28ca0fc4c835b5ee571b4ed8a2602327013ad4df51f8dd0bbcc3a13bf9606c. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/FR6V80641349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6348653685ea6dcebbb2c411bc94e38398443db404cc77ab697e938d74d75b6. 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/FR6V80641350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9ab3679256994268eda43bc6191065dc6688373a65db6ac0ce3bfc799d642e6. 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/FR6V80641352.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec10a0a3ed74915d05727cd913cc6bce587be73916bc07ea904f23f118704be8. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/FR6V80641359.
Tous mes rêves / Juste moi (Les deux premiers albums)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bc3cc9a4cd03eb4211aebca1bc23e858fac6dd03d85ddc7e829f3bc553b4df5. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/FR59R1820097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb695b035199e39d5b2dcb280b965b00bc8ffaac856e5adccbf87bd0c53633d74. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/FR6V82707680.
Mazouk Noel - Pot-pourri de cantiques de Noël
Mazouk bel héritage - Collector (Les plus belles mazurkas créoles)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x136e30ae6e8c02e7d5012b57b665e80f9449f3892f68c3b89d5dee870158a1b9. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/FR6V81148728.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9a2b5e0c90a9eb74464a594f9e2d5d43c72fd2625e470b7f9b86e4cd925df49. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/FR6F31642530.
Ragga Sun Hit (Les tubes des années Ragga kreol) [100 titres]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3394b47de1b6ef4e37a151157ad7e0feaf27884d93c996856d590927a947e0ef. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/FR6V81129633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef3cca09b32799fc5be2b0551337b4d862d6941eae57aec41af8c5e691c50919. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/FRX202046270.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcdf6616894c732f14389e6ef957d771191943c475a4be49b3ea5b2eef0f7d71a. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/FR9W11923306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb001075d82b00d7afc314a481f1f4846885600076f46011e2a5f4ee95723f2a. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/USHM20599409.
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 0xe7707717ce9601423505295cf62be033ceff68de54accf9f132de8f623aae9ea. Chain 2 (Bitcoin): anchored in block 960099 (2026-07-29T11:30:20Z), 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/FR6V81511517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b3a9e16921454ffca13a69f688066017995ccaa3f72b9d20c6f6eb67a647504. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/FR72X0300556.