Stephen Sims (11 December 1895 – February 1973) was an English professional footballer who played as a central defender. He was born in Bedminster, the son of Mary Jane Stenner (1870 - 1906) and Vict
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 0xbbdd17067fbf2aa15ea2c93a7a3c8b19589a33e561c8b431be18d63ec4736466. Chain 2 (Bitcoin): anchored in block 954742 (2026-06-21T20:46:40Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fe33a810-f880-4594-9882-095da3977544.json and https://artists.proofprofile.net/proofs/artist/fe33a810-f880-4594-9882-095da3977544.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).