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 0x665f6b09137277741ee6cbc2162ae22d865832e059a4d1e251c897938cc3dbde. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a13fcf64-92c3-4773-b135-48bc208df32d.json and https://artists.proofprofile.net/proofs/artist/a13fcf64-92c3-4773-b135-48bc208df32d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
I can't wait - Carlos Herrera Music Remix
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 0xcb4e67f3e8fe6bc674c302f954a2da0a7b66bd3e9d20d30bab9ad203b6ffc770. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/TCACG1501211.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e62e6b83e8da08d8373ec98792eea7b614dd3e43b67f856249a32b817a671df. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/TCACG1501219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3782c3b1c709f76af4c0ad141a5392699f92af0a12c043c590fe352ff00f5a25. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/TCACG1501225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf392e454630528a83132e747b02d73c4beda3010b79b8f1ed23301d9f38bbb7c. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/TCACS1605095.
De Gloria En Gloria (Remix) [feat. Marco Barrientos]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x227d00d924861aeda8c3364f909ecf061dd34548c43f2ba26de464ed7206e935. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/TCADE1756049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7263e1f0297319c79334c4f30d8b960348dcb2e03db50c746b60c8dc3abd39f0. Chain 2 (Bitcoin): anchored in block 959031 (2026-07-21T19:04:48Z), 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/QZHZ62024584.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0c01c8152bf9a9fa42222e5575b970b447144b84441cda1a01d25f5420f0372. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/GBRKQ2057586.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x279b1bb31be4176c8201a66dd1de9e6fa45fac7036cdd91011f6f23d95fe09d2. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/QZWDD2383268.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5765c04792daca37db4d4567fc33c11f26107bb7985fd44499798fb241879320. Chain 2 (Bitcoin): anchored in block 958124 (2026-07-15T11:02:18Z), 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/QZWDD2445090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca92c967f422ae9fc3686cfd41bf2189c209e3c2c3b8c2ce430e6ebb769e0f67. Chain 2 (Bitcoin): anchored in block 958547 (2026-07-18T12:44:05Z), 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/USLZJ2523586.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cfe12c05fd975bd491535b315ec26ca96de495903161b386ff3b7010e0cffa4. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZWV32593928.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa8e7c1858a2c47b4b11714d0bea611fcf4a0712a6b16ebdb85872718d7defb9. 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/GBLFP2047155.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5b9ba3fe68c43e302637c4f22fbf1d71c5dbb9dd53379665ebc2f24cbdda12c. 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/CH6551700218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd72838987e8b076d1559cbaccdec1e5506afcbdfe39ae1b3b207bac05b3fff61. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/CH6551700219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d709db17f9008704ebbae6810c126ef9eaccc5dbeaa543c88aa1fd2a8219080. 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/TCACT1653959.