Damour () is a Lebanese Christian town that is south of Beirut. It is located in the Chouf District in the Mount Lebanon Governorate. Geography The city is located in one of the few flat areas of
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 0xc7a279dc702a50c3f268b85778cc38096695a1864e1db40ee10859a2a033acfc. Chain 2 (Bitcoin): anchored in block 954513 (2026-06-20T06:31:18Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9e67840d-4ca7-4de1-a4da-faa1cdc3f895.json and https://artists.proofprofile.net/proofs/artist/9e67840d-4ca7-4de1-a4da-faa1cdc3f895.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).