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 0xf95b394a1b8fc66e4ec83222632bfcc73bd5b59fdca239612423c3d219d23888. 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/b55092bb-7240-44c9-b3dd-00532c548fbc.json and https://artists.proofprofile.net/proofs/artist/b55092bb-7240-44c9-b3dd-00532c548fbc.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Goodness of God / No Longer Slaves / King of My Heart
Graves Into Gardens // Great Are You Lord
Tumbas a Jardines // Grande Eres Dios (Graves Into Gardens // Great Are You Lord)
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 0xe012623f91dfb57db0790a660afbb54bf32f3c7cfb6d60624c11ad195b222f4e. Chain 2 (Bitcoin): anchored in block 958660 (2026-07-19T04:21:53Z), 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/QZHNC2153694.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0df7b9414fdd95618e3a33e3be7e6aeb0bf139a672ec403ad4480479108692fa. Chain 2 (Bitcoin): anchored in block 956396 (2026-07-02T21:01:51Z), 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/QZES92139854.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95e6706a6c788e148033745ba6b6d8984ef147a15593b8694fee6c62833f8918. Chain 2 (Bitcoin): anchored in block 956396 (2026-07-02T21:01:51Z), 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/QZK6J2049911.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2f704f5e7e922ff69bd39104c41ae89894d75cc20a19fbfcb763fc0aa4c4152. Chain 2 (Bitcoin): anchored in block 956396 (2026-07-02T21:01:51Z), 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/QZES92102726.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc830cd7867ad31598ccc9e547c140a62eff2b9242beb24cf50d85f46d16b395a. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/QZK6J2048223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23abecad2c480219e5ec0018a63b420ad65f8444c359c77571336661c2f61441. Chain 2 (Bitcoin): anchored in block 958653 (2026-07-19T03:54:23Z), 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/QZES62381639.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc830cd7867ad31598ccc9e547c140a62eff2b9242beb24cf50d85f46d16b395a. Chain 2 (Bitcoin): anchored in block 957546 (2026-07-11T09:35:53Z), 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/QZK6J2048223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb891fbc7a7c4cb7fd4ad60209f3b06315355c376ba7998c5d7be5184ae0839be. Chain 2 (Bitcoin): anchored in block 958121 (2026-07-15T08:02:12Z), 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/QZPEW2403676.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24edcf3714bf21a22ce015f258357c465ea9292615a2a44a4ecdef9882ed88de. Chain 2 (Bitcoin): anchored in block 957546 (2026-07-11T09:35:53Z), 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/QZPEW2403677.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x463d3825b321757318655e7585354531ace2a2e6fa90101931d952fa55e56698. Chain 2 (Bitcoin): anchored in block 957546 (2026-07-11T09:35:53Z), 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/QZPEW2403678.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x068923e63fed0d7b6f337d66dddb471aa5d6010b48c423739bf55e0b49543bdc. Chain 2 (Bitcoin): anchored in block 957526 (2026-07-11T06:03:28Z), 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/QZPEW2403679.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa22f78f48c62e53138caab48e301c15d6f7a041084334f731493ad483a2673d3. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QZNWY2018279.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0ed1a87826610fb99de591cd6e195bf45b1c92f01acc09869b4a0c72c92f62a. 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/QZNWR2076296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69a75bae9c0007a2071fe4e24b21d71f78363bb106664ca96d4558896c9833c0. 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/GBRKQ2358260.