LaRosa is a common surname, meaning "the rose" in Italian. LaRosa is a common surname within Sicilian families, and is of Cantabrian-Castilian origin. Larrosa is the Aragonese form of this surname. P
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 0xb23e452d03743bf8e3d508089413d48b29f8258a3271368aca310f6588f97209. 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/874f78e7-b3f7-47eb-9203-dc631139e487.json and https://artists.proofprofile.net/proofs/artist/874f78e7-b3f7-47eb-9203-dc631139e487.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).