thumb|349x349px|Print of Clio, made in the 16th–17th century. Preserved at the Ghent University Library. In Greek mythology, Clio ( , ; ), also spelled Kleio, Cleio, or Cleo, is the muse of history,
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb31b11ed5dcc91fd519a6ef8f607e3ce5cb31f6f7b593d2cc7e9f9284f6fa103. Chain 2 (Bitcoin): anchored in block 953625 (2026-06-14T11:37:06Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/201fbe06-4309-4720-bc6f-efcfb23dc26c.json and https://artists.proofprofile.net/proofs/artist/201fbe06-4309-4720-bc6f-efcfb23dc26c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Ti crescerò (Fortissimissimo sarò) - CLIO feat. Plasmon