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 0xdfc26cd80aa43d36fb4be57cbea88f704d3c69b22c7d43c3342078f618aafedc. Chain 2 (Bitcoin): anchored in block 953758 (2026-06-15T07:48:25Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b2c204ae-9b9c-4101-915a-4a6b00f79372.json and https://artists.proofprofile.net/proofs/artist/b2c204ae-9b9c-4101-915a-4a6b00f79372.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Friday Neet and We're Gannin to the Toon
Coming Home Newcastle (Cup Final 1999 Version)
Friday Neet & We're Gannin to the Toon (Dance Mix)
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 0x3af697fdc6405a7ccfa1b943597c4250915c379aaa54b9a7ef8a875ca5fbb7c4. 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/QZK6H2118590.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddd6e325a53daadbfcbf7fbbaf320d4449148bd560f0b925f49643b905cd3690. 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/QZFYZ2131872.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f5cf96593ecfc9d0d839da1a8f6bd1f6de64521256be1b2a6e7ebecf1f5601f. Chain 2 (Bitcoin): anchored in block 959010 (2026-07-21T14:35:37Z), 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/QZFZ72304050.