Delko () was a French UCI ProTeam that was founded in 1974. They became a Continental team in 2011 allowing them to ride UCI Europe Tour races. After financial difficulties, the team's operations wer
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 0x1b4599db32efd3098f6962c579513eb8db331788c29fa59af680fba916365519. 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/9f72e00d-3081-4242-b9c0-ae46b6ea9611.json and https://artists.proofprofile.net/proofs/artist/9f72e00d-3081-4242-b9c0-ae46b6ea9611.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).