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 0x610f43e012b3776d7c8119b87d03b27268563958cb86cfa49acacd5f3354ec89. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/dda3f8dc-2734-47d3-8ccd-12539c17c45f.json and https://artists.proofprofile.net/proofs/artist/dda3f8dc-2734-47d3-8ccd-12539c17c45f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Liklaai (Original Motion Picture Soundtrack)
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 0x65c0e04eb9d80c4a63d22ef6a44b154d9be3c7803f467c6c25101e715bc2d862. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T10:36:28Z), 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/INT131201586.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x968646bcb9ea8e9abcf1177d23bec0d543d9fe179a2d045e9cca9c4bdf0c5835. Chain 2 (Bitcoin): anchored in block 958271 (2026-07-16T09:16:54Z), 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/INT131513754.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd47fba63aa6332e0c3685cf092036f70ddd3c9a401943a5d8e5a536f601a649a. 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/INT131513755.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9513ca98d8d8c4126c79b13f6022c9c2ef42984d738cac15e526d2ebbf98daaa. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/INT131513756.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4213041d826a5254ea9fbb173e5fb5988cb6296a63bf3473e66a487e8d91c57b. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T19:12:55Z), 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/INT131513758.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ea6daf2bc81af012b0775f53958efe2198d2ffa91014c0d386dc96648839a25. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T22:28:10Z), 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/INT131910273.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe44f50c963eb766421afcad5c88addf7ee4d06369096cf418fbd09f894c4c0b6. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/INS4J1900269.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x853141dfa7f8289564da03d55ab0b6479f61634e43e05738e0b12f9c7348cff7. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T18:07:21Z), 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/INS7A2245836.