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 0x06ec0935ccc194b7d119ec4e4c9b56a4834b6579340da1bdd9b3c20f72a69c17. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/72b705f0-bc9e-4a10-8ac0-94e98e3ab1fe.json and https://artists.proofprofile.net/proofs/artist/72b705f0-bc9e-4a10-8ac0-94e98e3ab1fe.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Spa détente et bien-être - Musique d'ambiance pour espace émotionnel
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 0xa1b24a228a66c74b65079f0993070c92770c909d87f0f8b2226f100fc88f544a. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/ITO101609371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf43493fc1a86d0db7ecd5ee19c0ebefc6bcccdaf910d23d7fe587a4e6a1b668c. Chain 2 (Bitcoin): anchored in block 957919 (2026-07-13T23:58:45Z), 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/ITO101609374.
Joie de Vivre – Musique d'ambiance chillout pour la pensée positive
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2720cf12df3bf92999ca95ae403863e1915183b94dd757fd014ed53bf5b59b02. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-17T00:58:10Z), 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/ITO101701890.
Ayurveda – Musique relaxante pour massage, traitement ayurvédique
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4eaed8eb01311b227954a5f2fa6fe999b41efda2e8e3f3d09eb9161c8874075b. 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/ITO101711568.