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 0x8f72333aacd829a82da4a9c257899b83bb968aef886702ef7a87dc995d7ff24a. Chain 2 (Bitcoin): anchored in block 954500 (2026-06-20T04:47:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9d0b13f2-0d46-4cab-b1f7-c72e469d2624.json and https://artists.proofprofile.net/proofs/artist/9d0b13f2-0d46-4cab-b1f7-c72e469d2624.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Re-Cover Concert In Central Park - Live 2017 in Heiligenhaus (The Music Of Simon & Garfunkel)
Dancing With Tears In My Eyes (Unplugged)