Simpatico may refer to: Music Simpatico (D-A-D album), 1997 Simpático (Gary McFarland and Gábor Szabó album), 1996 Simpatico (Suzy Bogguss and Chet Atkins album), 1994 Simpático (The Brian Lynch/
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 0x347224022512e03feb3bc398e075dde2ee4b15eb5e159c3483ff7b3a10b098d1. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5ee24b61-f5b5-4c43-90ab-0222ae8a6207.json and https://artists.proofprofile.net/proofs/artist/5ee24b61-f5b5-4c43-90ab-0222ae8a6207.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).