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 0x79b7bdeb503cdf6cd75c25ed570285595093394762e5f66d02ced11f9968acf5. Chain 2 (Bitcoin): anchored in block 953633 (2026-06-14T12:47:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/338b3d56-f733-4536-9576-8d7ce80249eb.json and https://artists.proofprofile.net/proofs/artist/338b3d56-f733-4536-9576-8d7ce80249eb.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
A Little Night Music: Aural Apparitions from the Geographic North