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 0xacde38786dfc3aca097816cdfa0c39a328de96634061b42662957ecdba2f1b5b. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/79a0b182-30f2-4822-b772-4f6bde68fc09.json and https://artists.proofprofile.net/proofs/artist/79a0b182-30f2-4822-b772-4f6bde68fc09.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Music for Martians and Other Extra Terreastrials
The Secret Art Of Science 2 (Then And Now)