thumb|Majorelle Garden, Marrakesh Majorelle Blue is a clear, intense, fresh shade of deep blue. In 1924, the French artist Jacques Majorelle constructed his largest artwork, the Majorelle Garden in M
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 0x31f01d35a3881a339ddcd7886d59a814356136bbc6090fab1567674e52d83511. 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/8748a6aa-d332-45ad-a9fd-e66906b2c26f.json and https://artists.proofprofile.net/proofs/artist/8748a6aa-d332-45ad-a9fd-e66906b2c26f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).