Simon Nicolas Streatfeild (5 October 1929 – 7 December 2019) was a British-Canadian violist, conductor and teacher. Simon Nicolas Streatfeild was born in Windsor, Berkshire, England in 1929. He stu
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1972506d41c62c0df9fe5df309ff551c63ee15f4d498c62a13adec3bd957b8cc. 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/41842ddd-bd99-42b0-ab39-c98cd517a376.json and https://artists.proofprofile.net/proofs/artist/41842ddd-bd99-42b0-ab39-c98cd517a376.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).