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 0x4efba9c1cc29d66281a6b5fdce73de8e2923092763797cce0f06e1839632a63f. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6c2326d6-506b-44f0-ac6e-fe588ca09bfe.json and https://artists.proofprofile.net/proofs/artist/6c2326d6-506b-44f0-ac6e-fe588ca09bfe.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Nu Disco & Chill House (Chill Out, Lounge, Relax, Easy Listenig, Ambient, New Age, Meditation, World)
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 0xcbd43ebc1a75ce92303394a3c7710109a6b80be52dec88597fd3274684bc063e. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/FR6V81368942.
Chill Out & Lounge (Chill House, Nu Disco, Relax, Easy Listenig, Ambient, New Age, Meditation, World)
World Music & Co., Vol. 2 (Chill Out, Nu Disco, Chill House, Easy Listening, Meditation, Relaxation, World, Ambient, New Age,lounge)
World music & Co., Vol. 1 (Chill Out, Nu Disco, Chill House, Easy Listening, Meditation, Relaxation, World, Ambient, New Age,lounge)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x910e326b7e6e05543e58d54e0e645668d3a81ec8a293e15db493f62c291a00b9. Chain 2 (Bitcoin): anchored in block 958169 (2026-07-15T16:16:18Z), 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/FR6V81412651.