1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 artist was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcde5f2820cdf617e947b76b39bfdee73dd2fddce8d612c6e7430c22742db09a2. 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/47ea40e4-8ec9-4f95-aa7c-892c94a10eb2.json and https://artists.proofprofile.net/proofs/artist/47ea40e4-8ec9-4f95-aa7c-892c94a10eb2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Think I'm Going Weird: Original Artefacts From The British Psychedelic Scene 1966-1968