Sean, Shaun or Shawn Johnson may refer to: Sean Johnson (soccer) (born 1989), American soccer player Sean Johnson (bowls) (born 1972), New Zealand lawn bowler Sean C. Johnson, American Christian musi
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 0xa75a93e230d0f28c95b6ff32f73632d29826e7b120b5f5c16989ff8d5022b327. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/efbe6d2b-6bcd-4690-9c56-a230f2115ad8.json and https://artists.proofprofile.net/proofs/artist/efbe6d2b-6bcd-4690-9c56-a230f2115ad8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).