A quango (quasi-autonomous non-governmental organizationCole Andrew (20 November 2000). "All you ever wanted to know about quangos... but were afraid to ask". The Guardian. Retrieved 8 March 2025. ) i
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 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 0xc78e0d1ead195a3f78c01cc0cffa092f560259b01e65d17de1aec51e5e65a0ab. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4569904e-0f97-4673-a818-0d8b9dbf3e33.json and https://artists.proofprofile.net/proofs/artist/4569904e-0f97-4673-a818-0d8b9dbf3e33.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).