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 0x6f6ec49c421b4c1cc91ce51fae302f0d7130c6174999f8d2dba63bbdc6ce5809. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4349e832-c851-4677-8cd2-79657467767c.json and https://artists.proofprofile.net/proofs/artist/4349e832-c851-4677-8cd2-79657467767c.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 0x960ecb32985492d8df5f7c741c750636b96e3c5679bfcf303dcb0db8a25558f5. Chain 2 (Bitcoin): anchored in block 958362 (2026-07-17T04:32:48Z), 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/USWB12000208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8fe28b2e295928ec467050556cc028803b8e11bdc9f967574cbe347219bb85d. 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/USWB12000209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3d140019acc29cadd7642c80111774e43bd8352238eb9abb8e2d399ee102476. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/USWB12003859.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5ae9503dc8c014e3982578e6425686feded622d4f076211d1361568dbb8958b. Chain 2 (Bitcoin): anchored in block 958087 (2026-07-15T02:56:49Z), 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/USWB12004744.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x378470dedc93afa3c702a407895c4c5577784018667493e855cd78fe7eb2062e. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/USWB12100636.
Move It to the Side (Alice Longyu Gao’s Softboy Dancing In The Klurb Flip)
Move It to the Side - Alice Longyu Gao’s Softboy Dancing In The Klurb Flip
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa49fa2b107bbe4d7c0fbfc0f10c037d2cae75eda7ad5d38ce7f913e404266f68. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:27:17Z), 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/USWB12101364.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1160c55b61fea58efa958037bf930f814f902c55c8d2e84624ba78818e8238e6. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/USWB12301657.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b7b23dedd479b6f00bb6c582ab3ad4a38da1736c054c9fc56cf5231c99a6e6c. 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/USWB12301128.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaadb49d3fa05fa09e3b920a1cf64895d01eebcafa72a36da56a6d2a9023db138. Chain 2 (Bitcoin): anchored in block 960181 (2026-07-30T00:53:20Z), 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/USWB12301658.
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 0x4d8a14205644aceac9b3041574776b95c4f039049411375a86e26f3d30d3413c. Chain 2 (Bitcoin): anchored in block 956745 (2026-07-05T05:33:35Z), 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/USDA12326090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10587d1709fe300a1f668154af5eb469352ce168e07b73cafc3241bcb9c8d0d7. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/USDA12323878.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63e52fe3761b539f33034114208d6e5ae6f00c6f2e78fd076d521b438543ccdf. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T10:22:13Z), 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/USDA12324391.
Come Pick Me Up (With The Thistle Brothers)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x370a55f67de356d984ad4163aeb5e8d6fc1c55ce0e50e6e4e29c3eb93c38d942. 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/QZS7J2515495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc5bcae66ed7d82f0a1c7a777d3b992b0c0cb1064652e85060501d8928aed298. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/US25X2003067.