Jason Evans may refer to: Jason Evans (photographer) (born 1968), Welsh photographer and lecturer on photography Jason Evans (bowls) (born 1971), South African lawn bowler Jason T. Evans, United S
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 0xd612668acc26bb77073a050142c47d1aebee9ab44d70f33e20f6d636af74c9d5. Chain 2 (Bitcoin): anchored in block 953762 (2026-06-15T08:21:23Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b942d657-2cf2-4a77-9b62-5c6f142ee96e.json and https://artists.proofprofile.net/proofs/artist/b942d657-2cf2-4a77-9b62-5c6f142ee96e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).