Alexander Lucas (September 2, 1852 – June 8, 1942) was a Canadian businessman and politician. He was the seventh mayor of the town of Calgary, Alberta and spent six years as a Member of the Legislat
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 0x2c9bb981d4a923720b1aaa0ba6798192d19237dc05645fcac1a1304669c507b7. 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/536e1d5a-2f9c-4999-ae64-5b70a6e28da7.json and https://artists.proofprofile.net/proofs/artist/536e1d5a-2f9c-4999-ae64-5b70a6e28da7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).