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 0x4b07508c602564ac96d1c42e5bef68ad8914b1d25a2f09ebc8c51fadb0e2c247. Chain 2 (Bitcoin): anchored in block 953598 (2026-06-14T06:40:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0d5f038e-6ea2-47f7-b87e-81b18507352d.json and https://artists.proofprofile.net/proofs/artist/0d5f038e-6ea2-47f7-b87e-81b18507352d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
ANGELS WE HAVE HEARD ON HIGH (Folk Version)