Letizia () is a predominantly Italian feminine given name. People bearing the name Letizia include: Queen Letizia of Spain (born 1972), wife of King Felipe VI Letizia Battaglia (born 1935), Italian ph
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 0x3ff3393c31464e811226ae89562cd1f2bdae8a0068c03cb9e3dbe26dda8e3fe6. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/74ee1ff7-c7a7-4328-9c56-2e25e5ce1362.json and https://artists.proofprofile.net/proofs/artist/74ee1ff7-c7a7-4328-9c56-2e25e5ce1362.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).