Bonza Aviation Pty Ltd, operating as Bonza, was a short-lived Australian low-cost airline, headquartered on the Sunshine Coast. Founded in October 2021, Bonza commenced operations on 31 January 2023.
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 0x5af0b4456f74622cf260af194a812bc6843caaf1c204760b23d2524f80b793a8. Chain 2 (Bitcoin): anchored in block 954693 (2026-06-21T11:50:32Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e6fff151-0304-452f-bd37-a3c8c3416e7b.json and https://artists.proofprofile.net/proofs/artist/e6fff151-0304-452f-bd37-a3c8c3416e7b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).