LSG can refer to: Organizations LSG Group, an aviation services company League of Saint George, a far right group , LGBTQ Esperantist organization Louisiana State Guard, the state defense force o
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 0x63890a8d16b2e750c9c0eb0df14baffadee5d398580a47c1b1d5224b9b3b471b. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8be0c34d-37ea-4a7d-b4ea-3958c3fd0936.json and https://artists.proofprofile.net/proofs/artist/8be0c34d-37ea-4a7d-b4ea-3958c3fd0936.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).