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.

“Terrible, it showed the promotion.”

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 3247835674

Proof data

Record hash (SHA-256)

19329b80126feab04a35e01f4701d158b896e6839a64c5e85e4b1d6c0fc2ae6f

Signature (Ed25519, base64)

jkC0LGJeLxPODHlZlozm422uW28GG1Bdh0Ts7nBm5k3EStLuXrS+YnVsrXCWFPpbtrji0cYUQwlG65dhEEDGBA==

Merkle root

8af5f2f3f65c47a75dcdddbf363e3e76b22d37f4e953d150fcfa3e84bb04dba5

Merkle path

["1932de04d3e2b2cf1da54fc8063e0ef4354fc8b2a5e489a43f0ca8af806c6554","d3c6a29994dc5dcf673dc66143b6c3e55330d43adf2df6322861d6e2d3d43c55","5931c677b919fd1183cbd7e9a1811a5dbb20631fe69b23ff5066ffbc55591fd3","4404e5eb9cd4c6818bcef52a60c1fb7a653e1ea77ade0a2b6b08514c4bae976c","055cd5d76b83a3c190ae74a612d2740f537357aac82f34af20d786734a390045","e5d12fbd82843b28527d6d8aea5babfa63ef96b9afd98dc31f81d00099a041c0","ab4e749b8984d87e60695f434420e2dac8ed6b8d9666db7a5b5bd50aab8142d3","b3833a97afbc6f0a1161e283f0bc45776e126b8f6354e5c0d8037371d45e4296","1df10e869107267967b3a8eb19f66e4173d8da7da2c72467c05f4f35ce54c0ba","0ff4dccb3fc9dd1b67a491058d8dff675dff6582010d8572b06c7bdc1d73ce56","cf3fd672f99fd3a12c561632c0bc7eef648128cb12006c0c959d1eb66b0780a0","69e0b278fde36472d775b547f81c80ab6a46676326bfbd973817b55dc3255d09","2df4d836b73633f71fa96faafac3d9d32f00951d180b99885afa9511763f7b1f","2212eb5ff51e97198ac2cd6542275dfcf712b9be9a8fab294a9bf844689bcee1"]

Anchored

2026-10-14

Public log entry

search.sigstore.dev, log index 3247835674 · entry 108e9186e8c5677afded…

Expected log hash

306cff230c51a4aeee6711c8f2603eb2af6985e8dc9f5dc959efafe3398b8caf 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":"v1791944613264","kind":"published-quote","locale":"en","page":"brand:ifood","quote":"Terrible, it showed the promotion.","rating":1,"review_date":"2026-09-15","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=br.com.brainweb.ifood","v":1}

Verify in the public log

1. Open the Rekor entry (pre-filled with this proof's log index).
2. In the entry, compare spec.data.hash.value with the "Expected log hash" above: it is the SHA-256 of the Merkle root string (8af5f2f3f65c…), which ties this proof's root to the log entry.
3. Decode spec.signature.publicKey.content from base64: it must equal Citatio's published key at /.well-known/citatio-signing.json.
4. The entry's integratedTime is the independent timestamp: the root, and with it this quote, existed no later than that moment.
5. 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.