Lucia may refer to: Arts and culture Lucía, a 1968 Cuban film by Humberto Solás Lucia (film), a 2013 Indian Kannada-language film Enakkul Oruvan (2015 film), its 2015 Tamil-language remake, also
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 0x8d77c0c37db116b8f44b5fc30c4878b42794e9a604f2d04a5163f447fc9bc8ab. Chain 2 (Bitcoin): anchored in block 953596 (2026-06-14T06:21:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0a67bc26-d1c5-4208-a925-d20535a6b0bb.json and https://artists.proofprofile.net/proofs/artist/0a67bc26-d1c5-4208-a925-d20535a6b0bb.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).