In ancient Greek philosophy, () refers to the type of wisdom or intelligence concerned with practical action. It implies good judgment and excellence of character and habits. In Aristotelian ethics,
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 0x6ce2794fd55667b4ca24af9f89d457af64a426ada960ab0ca3b236d4dcf67a97. Chain 2 (Bitcoin): anchored in block 953997 (2026-06-16T20:07:57Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2bbe8813-1a6d-4a2b-b674-4ee7b3ca5d96.json and https://artists.proofprofile.net/proofs/artist/2bbe8813-1a6d-4a2b-b674-4ee7b3ca5d96.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).