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 0xaf0a2b83603c92cb6ed78e74fdb824d7b3d9ff0309543986e356153488288602. 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/e65bab26-e10c-4b90-a2d7-adee98b2f51f.json and https://artists.proofprofile.net/proofs/artist/e65bab26-e10c-4b90-a2d7-adee98b2f51f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
華Doll* 3rd season THINK OF ME: DEJA VU (Full Tracks)
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 0x0a489df043bd5ba5390f8d3e8c893e8227fd8e71645ad9ad3218015c584afae9. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/JP92E2300982.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6fa055d65364a4c598769e5495d419d9dbaee1fa87f64dc8bd636b926104ab6. 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/JP92E2300983.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaaabe55305f88dcf83fe7fbb1ad7d941c95f39f4ac5cbe61511ff5437dd7126e. 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/JP92E2300984.
華Doll* 3rd season THINK OF ME: NOTHING (Full Tracks)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x557316bcd464a5fc88672cc8443916119b2a5348c1b5e0167f666c805c97105b. 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/JP92E2300443.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe12bbd1872775575989845cf93661bc1d1a70b6c1bb5c8484de566fafb0b1d7f. 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/JP92E2300444.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe81d1ad6fd0ea8f8aeca23697e23e8ca66bec251e830f97c605e93eb0cf9ff3e. 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/JP92E2300445.
華Doll* 3rd season THINK OF ME: ARK (Full Tracks)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a7a84038f08f96c70f785f9fa32db6dbd22236c552f6074b89cad9687be2b44. 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/JPR502300978.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33a27c296af9db0f568ccc3c8c242cff2af22ca567a4e319f555da211f001e93. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/JPR502300979.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0ab2dac3a12cc98027954902074768fc9b640696dd862cdb793bf38bc6f8edf. 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/JPR502300980.
華Doll* 3rd season THINK OF ME: MONO (Full Tracks)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xffc747f4d63b015cb38efadfe8bcf3bca58a212ee0bc42c7c0463247f5461dde. 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/JPR502206473.
華Doll* 2nd season INCOMPLICA:IT～Pensée～ (Full Tracks)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cee29885867328740332ba83e17fc83c9cef6f82a1c2e1424d9075a2160ccf8. 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/JPR502200680.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7281571648dd63db82985ac98dc97e3e895321116145907970ce4f89ecba07db. 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/JPR502200681.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdfb3fba15e731e95ce25fe6d9469b8fc2c2d8ca486fcd18b52b3d6728d764bae. 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/JPR502149627.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe99fb331d7efed23b6fb914d389d732ec50c679ec6ebc950b62c974ab2168806. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/JPR502149628.
華Doll* 2nd season INCOMPLICA:IU～Univers～
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x072dc07c886132125a0ab4d5ef64f4571d9fef0d7bee77a50e72f3bd0558ef93. 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/JPR502038461.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb75330a9d6c218b80f50bfa19bbd1d0a9b98984634b3344fb5396be11e5158b4. 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/JPR502038462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9d36b5e6df5c9a7f10f73e3fb6262675808e8c732fc0b6feea8b6af734e0e45. 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/JPR502038463.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6fa055d65364a4c598769e5495d419d9dbaee1fa87f64dc8bd636b926104ab6. 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/JP92E2300983.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe81d1ad6fd0ea8f8aeca23697e23e8ca66bec251e830f97c605e93eb0cf9ff3e. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/JP92E2300445.