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 0x8fd980a8eb75d5ea507447bb56b4c5322e12dea35113e146f736bebc57f20349. Chain 2 (Bitcoin): anchored in block 953923 (2026-06-16T09:51:37Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1b900241-1f68-48ca-83f1-6b5b19ef75c1.json and https://artists.proofprofile.net/proofs/artist/1b900241-1f68-48ca-83f1-6b5b19ef75c1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Tonight (I'm F**kin' You) (Re-Mix Collection)
Tonight (I'm Lovin' You) (Re-Mix Collection)
C'mon (Catch Em By Surprise) (Re-Mix Collection)
Don't Hold Your Breath (Re-Mix Collection)
Just Can't Get Enough (Re-Mix Collection)
Masterchef Synthesia (Buttery Biscuit Bass)
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 0xbe310aab59628d0afdf85100b1facf80a883601a958f68abfb70c295c2798846. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T18:19:54Z), 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/US6VQ1280060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x724fbb5284bbf579f207131c95ec643291259945357df7c62fae69ff24d4fee5. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-19T21:20:45Z), 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/US6VQ1285177.