The reVolta was an annual professional women's road bicycle racing event in Catalonia, Spain. First held in 2018, it was initially organised on the same day as the last stage of the Volta a Catalunya
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 0x0cb8d83a2338356bc942e5fb4f7a484f607d3db77bc5ff9bf0a4ab06463750fa. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ed9a7d8e-9d56-43f2-b922-1341bea30d42.json and https://artists.proofprofile.net/proofs/artist/ed9a7d8e-9d56-43f2-b922-1341bea30d42.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).