thumb|G.I.s from the 25th Infantry Division in the jungle of Vella Lavella during Operation Cartwheel, 13 September 1943 G.I. is an informal term which refers to members of the United States Armed For
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 0x476d51ee89922714d14e10b67aebc1b3b2fd67d8e9928a3a31245ea5e0d8fe58. Chain 2 (Bitcoin): anchored in block 954115 (2026-06-17T15:44:10Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/769e234a-4060-4604-8db8-53da56c49c1e.json and https://artists.proofprofile.net/proofs/artist/769e234a-4060-4604-8db8-53da56c49c1e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).