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 0xf433a48024526c2a6dc54ccf96e100f35ff73885d4145bf3f71110614d768884. Chain 2 (Bitcoin): anchored in block 953721 (2026-06-15T01:12:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8a5bbd2d-8aac-49ad-b111-b25d7de44fa1.json and https://artists.proofprofile.net/proofs/artist/8a5bbd2d-8aac-49ad-b111-b25d7de44fa1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Rumblin' & Rare - 24 More 'Boss' Nuggets
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 0xc43a81fade96ae3d87d04c3f246672b51d2575badf2fb818af8eaae88a3c9b96. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:15:45Z), 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/USA371432947.
Rumblin' & Rare - 18 More 'Boss' Nuggets
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44a78c57680d55764caf66a33d674bed874aeaa2d526c83f8b35129b05613176. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/DEM071202227.
Lux & Ivy's Jukebox / Cramps Roots Vol. 3
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38306c038036b60b05d9a4b6d2c5a2a95e6c5747881e01fb38e7c6c0d9d648dd. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/QMFMG1313335.