LARS may refer to: L.A.R.S. (Last American Rock Stars), a rap group Launch and recovery system (diving) Least-angle regression, a regression algorithm for high-dimensional data Lesotho Amateur Radio
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 0xf7c5411dd9b94238a90f41b2e2be4aaee9b9b33551de4e838b61d5155d2d1224. Chain 2 (Bitcoin): anchored in block 954043 (2026-06-17T04:15:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3f177a55-0248-4ee8-b2a6-225d5d212436.json and https://artists.proofprofile.net/proofs/artist/3f177a55-0248-4ee8-b2a6-225d5d212436.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).