The word noema (plural: noemata) derives from the Greek word νόημα meaning "mental object".Nicholas Bunnin and Jiyuan Yu (ed.s) The Blackwell Dictionary of Western Philosophy, Wiley-Blackwell, 2004, p
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 0xf097f9ca84bc1e474abafd96dea15b20d932e10545005df15ea1f12aebc6f5fe. Chain 2 (Bitcoin): anchored in block 953697 (2026-06-14T21:49:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6fdd82c8-3388-4b25-9451-022c094877b7.json and https://artists.proofprofile.net/proofs/artist/6fdd82c8-3388-4b25-9451-022c094877b7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).