Met, MET, The Met or The MET may refer to: Buildings Arts venues Metropolitan Museum of Art, or the Met, in New York City Manhattan Ensemble Theatre, or MET, in New York City Metropolitan Opera
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 0xdd3024546f21357048ba7c9ea7a1f5424e7a45a29388f9f88ea5e46f3f97017c. Chain 2 (Bitcoin): anchored in block 953596 (2026-06-14T06:21:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/09d2bd4c-0645-4250-89b8-af3522cd7694.json and https://artists.proofprofile.net/proofs/artist/09d2bd4c-0645-4250-89b8-af3522cd7694.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).