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 0xdfd5c566354aa9539ca1d20dfd940cb291ae3d3045a1719255a442534017ba0b. 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/52ec2156-577f-4500-886e-3739da949857.json and https://artists.proofprofile.net/proofs/artist/52ec2156-577f-4500-886e-3739da949857.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 0xec218870de97a69e393ac51186b71b3eff172aeea0d11f612b3bf08b1f204727. Chain 2 (Bitcoin): anchored in block 958918 (2026-07-20T17:58:04Z), 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/GBX722200620.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x151a1c5e2284f1ffd7bae81aed791d5af1603f372418fdbf8cf25ae8d879d78e. 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/GBRKQ2357847.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0282830d0b8d963741f1a5bfe1df7ee67fd7bcb6358ca872afc9533437557ac4. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T21:32:51Z), 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/QZTV32306252.
Best Of Asake, Ajesings, Seyi Vibez (Dj Mix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x916f9a2c8bdc3418494670a56141725633bafa9df954362404ddb3b1795abf9c. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/USLZJ2439658.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0650026545af284f1895a3e9bfe17610586145f1edf14ce59f54e26c1fd5a1b. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/GBRKQ2483729.
Best Of Balloranking & Bhadboi OML (Mixtape)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9091a5159438277b74616fc10bc53b1803a3442a10b2e15542cd47af1d6ea485. Chain 2 (Bitcoin): anchored in block 958903 (2026-07-20T18:12:12Z), 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/GBWUL2409120.
Best Of Sola Allyson & Sunmisola Agbebi (Mixtape)
Best Of Ruger, PRA & Buju BNXN (Mixtape)