Louis X may refer to: Louis X of France (1289–1316), King of Navarre () and King of France () Louis X, Duke of Bavaria (1495–1545; ) Louis I, Grand Duke of Hesse (1753–1830; ), also Landgrave of H
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 0x77f4fb0f7678215ce3085ad5a4ff731327259c0782910e6dfd387b62ff22ec3a. Chain 2 (Bitcoin): anchored in block 953791 (2026-06-15T13:40:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/dc7f2d0f-95ee-4b93-bc7f-9f4df76e801c.json and https://artists.proofprofile.net/proofs/artist/dc7f2d0f-95ee-4b93-bc7f-9f4df76e801c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).