Lourdes (, also , ; ) is a market town situated in the Pyrenees. It is part of the Hautes-Pyrénées department in the Occitanie region in southwestern France. Prior to the mid-19th century, the town w
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 0x83cdc9de302515b652478d6ed1313909c6d801b724446352c320d0c3a807bf7d. Chain 2 (Bitcoin): anchored in block 953697 (2026-06-14T21:49:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/71bb63a3-43b7-4dfa-b30d-d30805903f08.json and https://artists.proofprofile.net/proofs/artist/71bb63a3-43b7-4dfa-b30d-d30805903f08.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).