Anthony Leonard (born 19 December 1955) is an Australian radio presenter. Career In 1982, he joined the radio comedy team Coodabeen Champions, who were then on 3RRR. Following them to 3LO and 3AW he
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 0x6848ce870777b05a6edd81207defa97a6539a7db639fbe36e1ef50e44a7be542. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4e7b5d8b-89f2-45d7-a596-b5cccd6ffaaf.json and https://artists.proofprofile.net/proofs/artist/4e7b5d8b-89f2-45d7-a596-b5cccd6ffaaf.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).