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 0xc6c26270572ac6ce6e5c1a99bd4d9e308c6c3435eae3e6ef73f27f73407243ff. 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/ea7ae158-52cd-4abd-b543-c2786f38161a.json and https://artists.proofprofile.net/proofs/artist/ea7ae158-52cd-4abd-b543-c2786f38161a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
When a person is standing next to you, there's no need to shout (unless he's a Giant)