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 0xf5aa941fe9a607ba73afc6ebac22c61c9a8208e63c26362733ff7f5dca46409e. Chain 2 (Bitcoin): anchored in block 953827 (2026-06-15T19:59:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f5b4ebad-5cfd-433d-919b-51eefa9f83ea.json and https://artists.proofprofile.net/proofs/artist/f5b4ebad-5cfd-433d-919b-51eefa9f83ea.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Bølle-Bob, Lillebror, Smukke Sally Og De Andre