JGH may refer to: J. Gordon Holt (1930–2009), American audio engineer and magazine publisher Jewish General Hospital, in Montreal, Canada Glendalough railway station, in Western Australia Jhang
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76a67b70c0425d18439799ec9c8238fd3b3731e6ccb2b5e2f58273dd9c517c56. Chain 2 (Bitcoin): anchored in block 954555 (2026-06-20T12:10:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ae17735b-c7a9-4082-80ac-93918c1f22ff.json and https://artists.proofprofile.net/proofs/artist/ae17735b-c7a9-4082-80ac-93918c1f22ff.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).