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 0xe367950b9063c61ed66a6060b04a09a7a0fc7d930d3b24947407d595bde00ace. Chain 2 (Bitcoin): anchored in block 953741 (2026-06-15T04:44:49Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9ddc4fc9-d17e-4932-9ae3-c77aa0dd884a.json and https://artists.proofprofile.net/proofs/artist/9ddc4fc9-d17e-4932-9ae3-c77aa0dd884a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Animal Vraiment Non Identifié (Histoires)
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 0xf088ed8929d27eb2148413d717acd4bf865e587129e133de59435d9bd4fefcb3. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/FXR482400012.
Animal Vraiment Non Identifié - Histoire
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe570a9aaf0182c92920dba0f98a14f02875f11b47108f7a5b1340d197637ce14. 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/FXR482400013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89628d6540fcdf74907832f8409c60b18b0f0b238c60378f765530c1ccab99b9. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/FXR482400014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc83fa034b1a2e2e1c866bbc0d5cca21c3c674e09c1a302d500305e2a745252a4. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/FXR482400015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc24593042f8b6fbab89693b47d5e8cbd53d6627c56e1ba435e8431a19850725a. 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/FXR482400016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddca477e9678410d3aba9bfe3b444ab7c27444f29c9e0c63b0df59010f85bcc1. Chain 2 (Bitcoin): anchored in block 956713 (2026-07-04T23:03:25Z), 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/FXR482400017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a617773520d5cf9988d5959014b58e022bb2a6b8b6bc5665f7da02114d05f22. 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/FXR482400018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x634015c7d27251632fa9b7b26111eef82fc174c02970918d70e1e07e0aff4301. Chain 2 (Bitcoin): anchored in block 958793 (2026-07-19T22:59:45Z), 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/FXR482400019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61bfa0aff039542d274eed48dc16c1095dddd331da5745d52f40a657209279f3. 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/FXR482400020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf7cecb645f408a22d35a112df003945dc7ee27166135c449e17a48db9bff391. 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/FXR482400021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ac39677c8ac5ab72863765dec1f8fb80753448d467a7cb82f921d661bc87283. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T17:46:53Z), 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/FXR482400022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe97b105972bcc5affeb1b1e97ec932cead3e3a3c875677ea7e4ef8bf146dec57. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:48:50Z), 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/FXR482400023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb86cfe905d9e512220426ac89dcfbabacdb58e62a4a8cd60625196b05493cc21. Chain 2 (Bitcoin): anchored in block 958832 (2026-07-20T08:25:25Z), 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/FXR482400024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb9bbe4ccc1f65f361791d5ea42442dafed9a062e3a12500556ed6cc26c13549. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/FXR482400025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbda471dae203d1f309811471be859eb8c4bfc56c72bda273b8cc41fd9b854ecc. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T03:54:30Z), 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/FXR482400026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4f379794b63eb89d168e681189b18f1eb1bb329a0b2d7adb21fe4888158b7e1. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/FXR482400027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfaa60a90d6ab90754ce28fa4e8a36345b8e3c901cd9fea7ec0292bf8400f6e75. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/FXR482400029.