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 0xca04f00b98ae1f032391935fe21806a2b4ba9b3ea44d71f065732dbb83192264. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b3be1bf5-066b-4b32-80c5-3554d548d93e.json and https://artists.proofprofile.net/proofs/artist/b3be1bf5-066b-4b32-80c5-3554d548d93e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Best of Annabelle Collector (Le meilleur des années 80)
Fuis Lawrence d'Arabie - Version originale 1987
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 0x37a2e0d499dd1ffb2a596b5349d2186d77a9c522bf2d4830e021afddfc005f63. Chain 2 (Bitcoin): anchored in block 958945 (2026-07-21T03:28:15Z), 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/FR1OC8700030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37a2e0d499dd1ffb2a596b5349d2186d77a9c522bf2d4830e021afddfc005f63. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/FR1OC8700030.
Maxis 80 : Programme 2/25 (Les meilleurs maxi 45T des années 80)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa428d3294aacbe3859fc609039113e87e277ce22dcd0f2e1aa1cee8392aed136. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/FR1OC8700050.