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 0x520d14a81138be6bd19ae8c3ea7fdee2ed1ae1441f24ed59dad0444e690d9dd1. Chain 2 (Bitcoin): anchored in block 953899 (2026-06-16T06:37:25Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/13b0e9f3-6905-495a-ac4e-07e4ea908c5c.json and https://artists.proofprofile.net/proofs/artist/13b0e9f3-6905-495a-ac4e-07e4ea908c5c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Enginn grætur Íslending (Skagfirðingalag)