John Dash (31 October 1882 – 1 January 1952) was a member of the Queensland Legislative Assembly. Biography Dash was born in Blackall, Queensland, the son of John Dash Snr, a German migrant, and his
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 0xf0675267d8002a193b1551a46036e9a25131d9bcfba00c8bae446bcd99e2d15d. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f3b7ac5c-fdbe-46db-9eee-8fe5fd387c86.json and https://artists.proofprofile.net/proofs/artist/f3b7ac5c-fdbe-46db-9eee-8fe5fd387c86.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).