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 0x2eed48e12bb2d5ceb6d11b07334947fa77f01ee1dc2add39910c18da2b2294eb. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d19951cd-7c32-4bc4-b6c1-f360207b37f3.json and https://artists.proofprofile.net/proofs/artist/d19951cd-7c32-4bc4-b6c1-f360207b37f3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Purple Rain (feat. Ali Campbell) [Radio Edit]