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 0x587b1b72c1cd434bb0ac4b50b2be1fac55b72bce24fd3f0f93c6c66930bb1695. Chain 2 (Bitcoin): anchored in block 953626 (2026-06-14T11:41:45Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/252eb006-53ee-4b86-8717-9e62e3cb46fe.json and https://artists.proofprofile.net/proofs/artist/252eb006-53ee-4b86-8717-9e62e3cb46fe.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 0x7bf5e8fc8090437ea3cee2fcd9da608eca1885265ce6c8906a73f3aff62ffe77. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/QZDA52438375.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a35e6eea5a7beab71ec2fb58f428580dd85091701b8b0c7b0f3e0b9dff7e959. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/CAQOI2413703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f401f8f394eb5bc378f3c4b8811a3d0fa707cb0239c4e814ed6ee752fcd2476. 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/CAQOI2414797.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1064abf5f6097ce789528242cdeded4ef0e727843d317906832eda935e7fa786. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T12:59:40Z), 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/CAQOI2414798.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f401f8f394eb5bc378f3c4b8811a3d0fa707cb0239c4e814ed6ee752fcd2476. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/CAQOI2414797.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4b7775a7801f25b34ca7c89bf7273f347726731393b4ed28a559c38c44971cd. Chain 2 (Bitcoin): anchored in block 958325 (2026-07-16T23:53:04Z), 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/CAQOI2501023.
The Lonely Heart (JETPACK BRIGAID Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70abbc22843dd83641eb1d2c6c2d39eca7b806fc167e6e9845325668c991ae5a. 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/CAQOI2507284.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12a70115fb0763a83280c8c55cfa62a3e5c4368ed0ebbacfcdc2e974c41ff07a. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/CAQOI2524140.