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.

“The app keeps crashing.”
Google Play · 2/5 · 2026-07-26

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 3273209361

Proof data

Record hash (SHA-256): 27f7e8a4f1fdf080d69966ec34644aad31b8ef33ae900c74ea8ca04d5e79cbfc
Signature (Ed25519, base64): OzDdorUnDbotgDi6iEpXDpaXRQQtixYmrmaRHBH5vVjmQpOR/hvKmyCXyni4kaXf0pw4uppGFYg2aH2FYUH9Dw==
Merkle root: 6ebb2d3fb78e4a08533ac6b6852f3c84687141ae9b0e78424d88bb4161267bbd
Merkle path: ["27eb06ad37d2a1556939398bcd68876b202f32211c0fe4cb3da09ffc08e9a098","55cdf61562d2e688ba03247053c749626245c73e52e084d09b894a3fd1fcb965","30a584bd588662b08ab915682f01142ab207ca868a075a54a6d24bed8f60c91e","50f0f5db9d1f25bf09b0f96c42147012906476ed9f4e097a5347e55b82be4a89","a40aad17f777774e241959efb3f16e6ff498bade9a2d9c77b906d482bc6d3d1e","91780c19b971bc1632eef7daeb27ca39cb6eb5897e205f0af770b8a2f77e2972","76f45a3c510906490dc3f81fbcb559cfe58faf46d0e63bc03d213862c0ec8dd4","207ea9fc1001a89388f15e6421ed6a03f0385dadcf5c1599c09e5eaaafa34d9d","e2d854bc33b167b6a62c47feed748d537f6bc620008717df2fb8747a4e190a8e","92dad562c0ae81efb9c22cb4a0c96d5566ac3900bee0a61ed1b3c342720c0f16","c6505d62fd1f18a4c80c5faa97487c91b8a68d4c0c27d65e4983982245aadb62","fc73c2b0627636c8f676f008d05fbbd4dcfb7ee0af08432d0bea252601b2007e","b2809ea8af334e57adb596cf07ef2c411ca41ee72761a0ae0fbef01d75a71a23","32d6dd564d479cc6b7834d44d5078d8ebc72c40210e72f0d380fac04d2d8e87d"]
Anchored: 2026-10-16
Public log entry: search.sigstore.dev, log index 3273209361 · entry 108e9186e8c5677a732b…
Expected log hash: bdbef22d23477d2ccfe2ed182ce8ec54934b3bae489c9913db850af171e33062 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":"v1792121074379","kind":"published-quote","locale":"en","page":"brand:zasta","quote":"The app keeps crashing.","rating":2,"review_date":"2026-07-26","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=de.zasta.app","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 (6ebb2d3fb78e…), 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.