JWL may refer to: Jewell railway station, in Victoria, Australia JWL equation of state, Jones-Wilkins-Lee equation of state for explosives JWL standard (Japan Light Alloy Wheel standard), a set of
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 0x449e829c3962a3b142ea47eae3220a41350b3ffc0c01f00f84bc168f4c5465e0. Chain 2 (Bitcoin): anchored in block 954623 (2026-06-20T23:40:06Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/cb90a133-5901-4808-b3a9-5ef7274296c9.json and https://artists.proofprofile.net/proofs/artist/cb90a133-5901-4808-b3a9-5ef7274296c9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).