George Howard Ferguson (June 18, 1870 – February 21, 1946) was the ninth premier of Ontario, from 1923 to 1930. He was a Conservative member of the Legislative Assembly of Ontario from 1905 to 1930 w
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 0x42575c733eaa79ee7aad02ed7d92117746d073dc9f836eb4ec109abf4e6a86f9. Chain 2 (Bitcoin): anchored in block 954623 (2026-06-20T23:40:06Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/cc2e303e-228e-496c-935f-72582bd66b8c.json and https://artists.proofprofile.net/proofs/artist/cc2e303e-228e-496c-935f-72582bd66b8c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Howard Ferguson: Octet, Bagatelles & Violin Sonata
Ferguson: Discovery and Other Chamber Works
Ferguson: Piano Sonata in F Minor, Op. 8