Zanella Hnos., or simply Zanella, is an Argentine motorcycle and mini truck manufacturer founded in 1948, originally using 100 and 125 cc engines designed by Fabio Taglioni and licensed from Ceccato m
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 0x4045ef8ec89abddf9e7fcf0dc6f5d71adbca26c00a1d5924f673bef46c00f952. Chain 2 (Bitcoin): anchored in block 953616 (2026-06-14T08:58:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1ad8623a-155d-4432-97bf-51228c8f6a44.json and https://artists.proofprofile.net/proofs/artist/1ad8623a-155d-4432-97bf-51228c8f6a44.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).