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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71641fb2610ea8fe72d85133b85c14cf76a5c5802215c29484c8fe752b4d262b. Chain 2 (Bitcoin): anchored in block 953949 (2026-06-16T13:28:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1a8040e2-fd2d-4efc-a0e5-bd30fbc1a161.json and https://artists.proofprofile.net/proofs/artist/1a8040e2-fd2d-4efc-a0e5-bd30fbc1a161.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).