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 sa”
Reclame Aqui · 1/5 · 2026-09-17

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 3220367991

Proof data

Record hash (SHA-256): 553e889f4388f138fbebb7881b9a3172b5083a0dbed93adbf6259f6416c28e2c
Signature (Ed25519, base64): maWSu6v46ka2kO8f6DoNJJTPKtiCQGFjAZ+CxBVi/NQz7ZWT1YdqT1hWagHtztY0ezcnqwt9+1ljZk7gqCGjCw==
Merkle root: 8e481f891fa4a8f9e77c0279ca152fab4383b65a50decc840d9fd7569bdfbaa3
Merkle path: ["553e15830e8c6d1295cbec54fc3cefb1bfe4fd357b4e8782109e85abd6333712","29513840a3678e571c0dda647ffbc28f4ff68ddb3aca4ed9d2ccb9c4f2f53a58","f5b1839b393738200189b23a95b1b3f9ffccdb154334f830a8e0a0b047eb1746","dc17799de605e64b92ec1fce6d901950a4dd767ed40ddcf1984150b4d5588eef","3942cd6ad9094a7dfef775438c6c3376edb4846802bfd9a6a399f74b56609d36","3d210d0e3b27225529ce92e07de72731c7166c288a209bdc3d673bd5be084982","53b85bf1c04de66b56e62182d1f4245d7a294822404a16db63b110b49d87d000","fcf995003dcef36b8aafc0ad778272c03036d425bcff290dbef656fea40ab344","78913e22bc500b8644a526493f1c1c01c3a40faf0ed3c39aa1e4aea18e3625f1","4534f74f7ea74231e7e4a7114d1b60e122b252d33b1ce6d93bca340305b1c2c5","b0d19eb198ae92cef79ff7b06a3ab9a6d60fdb5502f9f4962c90f48d23c66b88","3b4f21b826cbea2d43ed04a02447fd6a5c5177bac5ab8f0646d2865e69ab2bc2","a8a51e6cf51feca9c73f59ef001af57f41b1cec2b5f25963206b5df2878ba531","391099ea13ca712ab4d3c0ebed9ae37f021122ce33d031a4f3442fcba2038ec0"]
Anchored: 2026-10-12
Public log entry: search.sigstore.dev, log index 3220367991 · entry 108e9186e8c5677a60ce…
Expected log hash: 9a2b3ddad9c3b29dc171a15554fc81f3d4710c01a7565bd2f28b92e7b639f6dd The log entry's spec.data.hash.value must equal this value: the SHA-256 of the Merkle root string above. Recompute it yourself from the root to confirm.
Canonical record: {"dataset_version":"v1791776812348","kind":"published-quote","locale":"en","page":"brand:ifood","quote":"I paid R$35 for a sa","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.value with the "Expected log hash" above: it is the SHA-256 of the Merkle root string (8e481f891fa4…), which ties this proof's root to the log entry.
Decode spec.signature.publicKey.content from base64: it must equal Citatio's published key at /.well-known/citatio-signing.json.
The entry's integratedTime is 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.