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 entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47195ce9f882a153a2da1e8e33659550595751ca4535c3185a0d48f899d975f7. Chain 2 (Bitcoin): anchored in block 954533 (2026-06-20T08:57:02Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a72809ac-4bd9-4f66-b3a3-0d2537c7e3cf.json and https://artists.proofprofile.net/proofs/artist/a72809ac-4bd9-4f66-b3a3-0d2537c7e3cf.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
4 Days, 19 Hours, 27 Minutes, 28 Seconds
The Adventures of Phantom Steed at Mystery Ranch