CGN may refer to: CGN, a gene that encodes for the protein cingulin the Chapman code for Ceredigion, formerly Cardiganshire, a historic county in Wales China General Nuclear Power Group, a Chinese
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 0xb4babc6173b3178d504760d08fd5229b98674b3fafb6c1d516438040c7ffee6a. Chain 2 (Bitcoin): anchored in block 954500 (2026-06-20T04:47:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9cf22e99-adaa-46bb-93d2-1fbd0b059996.json and https://artists.proofprofile.net/proofs/artist/9cf22e99-adaa-46bb-93d2-1fbd0b059996.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).