Lost Lake may refer to: Communities United States Lost Lake, Mississippi, unincorporated community Lost Lake, Wisconsin, unincorporated community Lakes Canada British Columbia Lost Lake (Mackenzie
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 0x5cd00f8f063228513aebbead7c9abfa5d4460494eb13f3af3e2fd474f53ccb95. Chain 2 (Bitcoin): anchored in block 953860 (2026-06-15T23:55:46Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/03a4c679-111c-49be-97e7-ef6983e6048f.json and https://artists.proofprofile.net/proofs/artist/03a4c679-111c-49be-97e7-ef6983e6048f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).