Quote verification
This proves the quote below is recorded by Citatio exactly as displayed and has not been altered since it was committed and anchored. It documents Citatio's crawl observation; it does not imply endorsement by the source platform. The quote links to the original review.
“I paid R$35 for a cold Subway sandwich with hardly any ingredients via iFood.”
Checks (re-run on this request)
- ✓ Signature — Ed25519 signature over the record hash, verified against the public key at /.well-known/citatio-signing.json
- ✓ Merkle inclusion — Leaf recomputed through the sibling path to the anchored root
- ✓ Public transparency log — Sigstore Rekor log index 2890214870
Proof data
- Record hash (SHA-256)
fd96b6bc1df215afa854cb8e1eca7518af483742cd61a85744011ff584774484- Signature (Ed25519, base64)
zJp0S5S8I6orupDqLKycYWQWLcZgycwtn5R7GWH9sEUOeT12d0Ksy8Jph43t0cbqjI5eKckRKsPN8H5qVmI7CQ==- Merkle root
04b39eaa56e1cf8f75dc8eac18bf6942167c8418ea731a7471223f0be60e3e6c- Merkle path
["fd9697e28f1b924eceaaca1b77802331528d024a10db03edf892738b5b48557e","28118ebe564c2c9c58a1bdd3cb0a6af19245ee8c91a7929cfcd893491a6de0dd","f91be215342dda58dd80d81278aab35f5f6e8b58ef207a2058acf64e4384a31f","6deed5ccbae153a2f590090dfc4fbd744aa7e8bd129c6e414ecf5c47f7117f8b","fb451f68638be8bd636389fe045c5b3b466e27f0479c440e0e139a5588f02f9c","4afcbadfa42775b74a3fc7bb2e2ff0044393c02a3a129f6e80ef30fb15105afb","09b8f1fed29cb3f6ea6196b16cbde6aecd699b81e33ed5fc89c0f64d47363d6a","05a30bedde15b1b6bf4df4e494882dabd475cc0108ca39630de1ec5dd1ab51a5","9b694fb84d831c9f7d74fa5b0d63fe312fe5b9d55ef6faa4a7586527ed8a269a","bec354a61159cca7aa205fff95edc7f2f3688601d15a7986d14e4f73a7bd2537","1f083c3dcaf36c8eb3cdb8010fa4a5c7a4a6ce179f93c9bb930a269081509571","7e36832bb556fb5b64507b00f7b2b4685623b814e769e9b017578a59d2954d67","3ba88b0016422cde319348a72d81ed01eacc4bd155bae80b5c4b6ab6d98a745f"]- Anchored
- 2026-09-19
- Public log entry
-
search.sigstore.dev, log index 2890214870 · entry
108e9186e8c5677af53b… - Expected log hash
-
1f3acef0f063246e051bf412e40f4279cb96ed334ff7b0647a13320c1b31c4faThe log entry'sspec.data.hash.valuemust equal this value: the SHA-256 of the Merkle root string above. Recompute it yourself from the root to confirm. - Canonical record
{"dataset_version":"v1789722569406","kind":"published-quote","locale":"en","page":"theme:ifood/price/en","quote":"I paid R$35 for a cold Subway sandwich with hardly any ingredients via iFood.","rating":1,"review_date":"2026-09-17","source":"Reclame Aqui","source_url":"https://www.reclameaqui.com.br/ifood/paguei-r35-por-um-sanduiche-frio-e-com-poucos-ingredientes-do-subway-via-ifood_GHpU3JScMBxBivcu/","v":1}
Verify in the public log
- Open the Rekor entry (pre-filled with this proof's log index).
-
In the entry, compare
spec.data.hash.valuewith the "Expected log hash" above: it is the SHA-256 of the Merkle root string (04b39eaa56e1…), which ties this proof's root to the log entry. -
Decode
spec.signature.publicKey.contentfrom base64: it must equal Citatio's published key at /.well-known/citatio-signing.json. -
The entry's
integratedTimeis the independent timestamp: the root, and with it this quote, existed no later than that moment. - Locally, without any Citatio infrastructure: SHA-256 the canonical record (must equal the record hash), verify the Ed25519 signature against the public key, and fold the hash through the Merkle path (sorted-pair SHA-256) to reach the anchored root.