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 0x3a7bc728811f4bc4fea991be12694f5883d40e8a664824e3d255846b86330109. Chain 2 (Bitcoin): anchored in block 953713 (2026-06-15T00:33:41Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/81bce59d-a46c-4e0f-8352-9a4e4fabecde.json and https://artists.proofprofile.net/proofs/artist/81bce59d-a46c-4e0f-8352-9a4e4fabecde.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Classical Music DJ Luciano Remixes, Vol. 1
Classical Hits, Vol. 4 (DJ Luciano Remixes)
Classical Hits, Vol. 2 (DJ Luciano Remixes)
DJ Luciano & Friends Dance Remixes, Vol. 2
Timeless Melodies Reimagined (EDM Edition)
Banjo Shenanigans Redneck Tales in EDM Vol. 2
Aria #3 Reimagined Modern Styles Edition
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 0x54c27853150e44af6f0fa936120e1ca2524181dc0441a4ab3b629f5f7033f1d8. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/BRGOR0300032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd89e81201daefc7fe0a903e0d77d46be9a979e51e8bc4e540283bca47fb2eaa3. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/BRGOR0300041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7afcd27384fffc5b5280d4a2d7e13da65945862d5ba112e51f90c06557636a5a. Chain 2 (Bitcoin): anchored in block 960125 (2026-07-29T15:38:18Z), 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/US7VG1771197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1725eb67ee6c23c974bad115c4b707b8e777c5b2df0ccef27fb0eb285b9cb31e. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T05:29:55Z), 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/US7VG1771198.