Nash or NASH may refer to: Places United Kingdom Nash, Buckinghamshire Nash, London (historically Kent), a hamlet near Keston in the London Borough of Bromley Nash, Newport, Wales Nash, south Shropsh
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 0x5f30461f9cf61dfd214ea584a9baf76fd61aa19980950dc0e561d8c301c48966. Chain 2 (Bitcoin): anchored in block 954516 (2026-06-20T07:04:44Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a1572f9e-baf9-4d64-8261-d7f5045af47f.json and https://artists.proofprofile.net/proofs/artist/a1572f9e-baf9-4d64-8261-d7f5045af47f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).