Johnny Collins (10 May 1938 – 6 July 2009) was an English folk singer based in London, England, specializing in traditional maritime music and sea shanties. Biography Collins was born in Norfolk, E
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 0xa61a91c9ef63d4d7163121909de17251c044b678f3845f5609fe228c618cccd0. Chain 2 (Bitcoin): anchored in block 954115 (2026-06-17T15:44:10Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/775b7e9f-c084-4598-8245-477b2bbe0902.json and https://artists.proofprofile.net/proofs/artist/775b7e9f-c084-4598-8245-477b2bbe0902.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).