{"copyright_id":"0xa9bbf05fea609bf11a6a62a28e5b48c0b1a7486d82c3dcb9bc6bfafc6feecd57","name":"Les Pèlerins de Navarre","registered_at":"2026-06-14T18:31:40Z","symbol":"NIM0539653","token_address":"0xf94e4279b4c0eda4d45d1d7de0c3c72329bbfb7d","type":"artist","uuid":"853d9b95-b7df-4e34-b518-09ef2c8bbe7e"}
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 0xa9bbf05fea609bf11a6a62a28e5b48c0b1a7486d82c3dcb9bc6bfafc6feecd57. Chain 2 (Bitcoin): anchored in block 953713 (2026-06-15T00:33:41Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/853d9b95-b7df-4e34-b518-09ef2c8bbe7e.json and https://artists.proofprofile.net/proofs/artist/853d9b95-b7df-4e34-b518-09ef2c8bbe7e.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 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 0xcf78962ad007597d53c660532cd31cbaa02e32b1677e453f93f2bcc85ec7bc50. Chain 2 (Bitcoin): anchored in block 958860 (2026-07-20T09:58:28Z), 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/FRZ519500110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d4a941e77b40bcd75d0f79045be021e997ada21011f4a2f7074007e4b9a1157. Chain 2 (Bitcoin): anchored in block 958060 (2026-07-14T20:39:42Z), 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/FRZ519600218.
Sud-Ouest: Les plus beaux chants des ferias
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x665b313d4abe566b4e11bf07d6050e3a93d469db602dfa449ea1de3a7ca9c7b7. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/FRZ519500109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13ee450d312a3069fc316034fb6653b419f57c5558800e37157ffc19cacaf5ee. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/FRZ519500124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x665b313d4abe566b4e11bf07d6050e3a93d469db602dfa449ea1de3a7ca9c7b7. 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/FRZ519500109.
Megafiesta n°2 - Dans la chaleur du sud-ouest
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb9eb8c5c77acf1f77e9daf8b5df187992b384fbb3c4b6cd23335afa7189adbb2. Chain 2 (Bitcoin): anchored in block 960258 (2026-07-30T12:45:34Z), 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/FRZ519500111.