Lourfa is a town in the Rollo Department of Bam Province in northern Burkina Faso.Burkinabé government inforoute communale References Category:Populated places in the Centre-Nord Region Category:Ro
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 0xcd8b5907af1271fb129fc98c52f03a946d67ce46d6856a5eb62bd431634cde43. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/616be87e-2e5a-4654-abf6-4a04036d16e1.json and https://artists.proofprofile.net/proofs/artist/616be87e-2e5a-4654-abf6-4a04036d16e1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).