{"copyright_id":"0xd32f2dbddba46bfdca8dc5a23e392cac53eb7c22233003dc56ae2339f0effef0","name":"VIVA VOCE die a cappella Band","registered_at":"2026-06-15T05:05:14Z","symbol":"NIM0690885","token_address":"0xcab9ef10df82b38c76c0b2b3b19f04599ebab200","type":"artist","uuid":"e9d62a7a-01ac-43ae-88c5-8e02f736ec41"}
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 0xd32f2dbddba46bfdca8dc5a23e392cac53eb7c22233003dc56ae2339f0effef0. Chain 2 (Bitcoin): anchored in block 953827 (2026-06-15T19:59:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e9d62a7a-01ac-43ae-88c5-8e02f736ec41.json and https://artists.proofprofile.net/proofs/artist/e9d62a7a-01ac-43ae-88c5-8e02f736ec41.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 0x08d7d1324b6e1677d2d8d8d342e3dbc9baa03d4f2d698932752f050baf6db5d0. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/DED812021930.
I Still Haven't Found What I'm Looking For
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x724d034e40bafe0115c0d2d693bff8a5f0c5490dbec05c381c23c61f44aab067. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DEN421621002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57046ca766069375d11dcf8470056ad7935d14193d94477b5e7d160d017ad53f. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/DEN421621004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x958b3632d58f9c72a0bd2b853310a95fca950d311c8911169a09539ce258b0be. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T14:03:35Z), 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/DEN421621005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a9565f968088a96358d45e9c8e87899c57926cf2d9588f87364c9f56ca29117. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/DEN421621007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9935d6b2c2f64dd7633450cafa9a69f5af496362ff4cbfb06ea01ed501d503c. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/DEN421621010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b46fdad4c354146bf872b150eb3f9ad65af8cc36a52b55bcbd150eadfb91500. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/DEN421621011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd340b7a229ede47634c4d6205bc7d7c2139868d44100b0a6c5f35eab422b6221. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/DEN421621012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd641540d92e3a9ba0c6d8d84a7cd622302cc23ec716c3f4ab0dc8afe9678a074. 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/DEN421621015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3dffe88db648ef1fb005b73dc0632410d022febc47fd6e4e150b0c0d0baa2df7. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/DEN421621016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f34d5a65ab9490e27423d9fd13d8d2d6647e9f69e82e8580ac7c14662d6b554. 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/DEN421621017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x474f3ed466951e2848cac44e0a6a9613442de32d579741fa74eabc463d82e607. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/DEN421621001.
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 0x1efbf89485ba1cd2c338b72fd521b925d682231f48d8befea4f559dfb230fb30. Chain 2 (Bitcoin): anchored in block 960381 (2026-07-31T09:50:11Z), 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/DEN421621003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf85fb54ea1331ad18d56f75abb0fbde96948cc3a0d25442f1e00538e742a64ff. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/DEN421621006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe215e0f5b064f445d00ef23ebb26e9d3d789561ce29a29be65f9834c10732e23. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/DEN421621008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d19007bc5955ce3c13bbe9cf285145b2584125a92fe138366e7477f7a6b0839. Chain 2 (Bitcoin): anchored in block 960144 (2026-07-29T21:09:47Z), 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/DEN421621009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7b9105771ec9949a336b34d9ead40a8e5a7e0a8af1854e77f45422fd102e5da5. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/DEN421621013.