Lucrezia Borgia (18 April 1480 – 24 June 1519) was an Italian noblewoman of the House of Borgia who was the illegitimate daughter of Pope Alexander VI and Vannozza dei Cattanei. She was a former gover
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 0x2325bff71119b427442ecae2b2e3579252d65d4154462dd02f6d3f1c78faed00. Chain 2 (Bitcoin): anchored in block 953980 (2026-06-16T17:16:51Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2c509c7c-1685-4874-8b77-3dafcebb2b31.json and https://artists.proofprofile.net/proofs/artist/2c509c7c-1685-4874-8b77-3dafcebb2b31.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).