Leonard George Thiele AO (26 September 192214 May 1994), professionally Leonard Teale, was an Australian actor of radio, television and film and radio announcer, presenter and narrator known for his r
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 0x470ac29fc6c7c72a86bfea0bfede33430256dfeda4e9f365ea4dfd147850c87f. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/604dc84f-f9da-4dc8-b983-083158408ab8.json and https://artists.proofprofile.net/proofs/artist/604dc84f-f9da-4dc8-b983-083158408ab8.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
Henry Lawson's Australia: Verse by Henry Lawson