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 0x680c16388b349735874df85a516ee5a45e9ff45289db195f72ba383e0f556175. 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/03f90175-5800-4b40-92fe-af9f5a95ed81.json and https://artists.proofprofile.net/proofs/artist/03f90175-5800-4b40-92fe-af9f5a95ed81.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82f041e41f4911a7021c0db1aca78bd29acba4403009f0f1bdc4699e46a71888. Chain 2 (Bitcoin): anchored in block 956745 (2026-07-05T05:33:35Z), 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/NLRD51953686.
Unsteady (Acoustic Covers Versions of Popular Songs)
Acoustic Covers of Popular Songs & Music - Acustic Covers - Chill Out Covers Music - Lounge Covers - Hits Acusticos Relax
Unsteady - Acoustic Covers Versions of Popular Songs
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59cc7346a05d1c2e05a24834b6fe60aff8fc23fdbcaf166a99446091a3c962ad. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/NLRD51953679.
Ocean Eyes - Acoustic Covers Versions of Popular Songs
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac8db500ea944b821f64752ce0ef5a2124bc46d5a61f6b24b261fef99d9a553e. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/NLRD51953714.
Covers Culture Presents: Morning Chillout Sessions
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac8db500ea944b821f64752ce0ef5a2124bc46d5a61f6b24b261fef99d9a553e. 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/NLRD51953714.