Ridel is a surname. Notable people with the surname include: Geoffrey Ridel, Duke of Gaeta (died 1084), the Duke of Gaeta as a vassal of the Prince of Capua from 1067 or 1068 Geoffrey Ridel (bishop 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8acb59c691fdaa1d0e0996c28e9193423f8b801bdc2555b2e7b7c1ea6e56c96. Chain 2 (Bitcoin): anchored in block 954533 (2026-06-20T08:57:02Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a48e7cab-c24d-473e-82d9-421da62358d2.json and https://artists.proofprofile.net/proofs/artist/a48e7cab-c24d-473e-82d9-421da62358d2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).