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 0xfd463e1df81209b4aac6a421d137c7345ec19a988fe6d0ed419956b56754afdf. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5404e48e-c17d-45a0-906e-5da3a7b43898.json and https://artists.proofprofile.net/proofs/artist/5404e48e-c17d-45a0-906e-5da3a7b43898.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Run a Muck (feat. Gravy Baby & Czar) - Single
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 0x7ff9ac0216fd35aabec8c97e193382de3d279acbf3b965fc6027848c16a30bd0. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T18:20:02Z), 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/QZANL1709719.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3da28aee1af04f86a1cbf4a0711809d186916c31902ebcc353f3d308806e4af8. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T23:13:23Z), 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/QZANL1709724.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcae6f0c965313d47a50906d6d059d2957b95e8451857b98a733a54cab046df31. 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/QZANL1709725.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62e50dc7684886ad70aed1c0db041c230f31e7c69a4205e726f0f0895d609183. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/QZNWR2191749.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62e50dc7684886ad70aed1c0db041c230f31e7c69a4205e726f0f0895d609183. 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/QZNWR2191749.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a5451d0f20a6b06a27777316ee6c04e556a5c2d079a44e14c7d304056c4b7aa. 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/QZK6K2085285.