Oscar-Claude Monet (, ; ; 14 November, 1840 – 5 December, 1926) was a French painter and founder of Impressionism who is seen as a key precursor to modernism, especially in his attempts to paint natur
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 0x1b98537dd8e190c010566a90291e8a1a3743f2fcc3fc9525b29be23f81a24e19. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/866ed9b1-ef94-4518-a222-0a42b06facff.json and https://artists.proofprofile.net/proofs/artist/866ed9b1-ef94-4518-a222-0a42b06facff.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).