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 0xe6e0a934290e7a5f4e4013b4d52c39f9316c1cad11eed750e9febaf79ff0bff1. Chain 2 (Bitcoin): anchored in block 953778 (2026-06-15T11:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a84bc59f-e24f-4acc-a189-c74fb5b6164e.json and https://artists.proofprofile.net/proofs/artist/a84bc59f-e24f-4acc-a189-c74fb5b6164e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Vwa la: Jili / Asi Parè / Dépi Ki Tan / Bossua / Ka la / Chocolat / A ka Titine / La grève / Asi Parè / Matété a krab
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 0xf7a6475eae90eb8e0ef4779dbc72192e57312419ac2282a31deb1b9938036a8b. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/FR8GZ2100710.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe301b7675b2fa9cfce7d782ad9470113dfbad39412bc26a13367bfff882338b5. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T16:23:26Z), 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/FR82S2400072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1d0805b998b5f3f559629d6f178d1eacee7724d16af7daa80f03a925e3435ec. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T02:14:22Z), 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/FR82S2500100.