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 can't open the app after the update.”
Google Play · 1/5 · 2026-06-25

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 2893887498

Proof data

Record hash (SHA-256): 382697e53810278cb3cdd94a6191e42fa18c8059cf20c54624e3858b7fac464b
Signature (Ed25519, base64): l4F2xqihBiijsfolu1ROcJ0R54uvk1O1rM5e3gCcKfKWeFLaQDCDuXARdlAItAO+fhwyy+HnNVHPEU2N0EGJDw==
Merkle root: 2f068f3de56bebe7a575ba4a979c9244445d2350140e36238e088fa40fbfdd88
Merkle path: ["382b3e139732590eed670da6c55ad73601810aec204780da6ddddfc1d631351e","d6277a8fb3555ba2e372f4faf31f26a1886a5e2205b6d7fbfee8c957ee3b08f8","e82fbcfb12fd6208965ab7e46b33cfbf6e134db88c89fc2fc15f9e2988c161d9","bc5b1185990d9f8a0638c01e3f76a275f40148251f7176464f7852189b408a3e","dc3f1a9d3aeeca80bdfe7c53ff12f826644df1a0f1104bf09f31c09d63b494e4","fb9c81afe63918f06b9a4727ddefbb8fd5c58433bccb3c3f71e55cdf54f0157b","7612e14ea825db6a78176c3cb3be9815a9dbffd72f3d7c7ba96c703c7940ba9c","e2466e1341c944a83f5a2f25cd3eb78e60d807b0e2bf052c94dd5e7e85315dc7","d6062516f09eaa2bc985b69adae53c2a4922ab018ac49fd0870ca0aa251784d8","0102e9d67652257fe7827ba15907621003e566d8b6c7c81f0ec6b779d2022e7d","160c0427cdb188ce7f937f06435fa5996b6a19b4bdc7052b0b1e205016d7e024","860272714a28696648d99767aad91d735a5f60322d9fa60ef0218fd7ac5b02f8","67b7564c01b814702c17628742fb6a8cbfa0e8a213c06511e31c90cf9f3e3578","03c5fc675733b417d9af5e071de3aba38ae7f09fa5781cbd0133ff9d4e234e36","98191c82333f4385e47f318835e01d44ca8835262c6d0df40edfd5f6a4dc5c19"]
Anchored: 2026-09-20
Public log entry: search.sigstore.dev, log index 2893887498 · entry 108e9186e8c5677af79f…
Expected log hash: 90099e0300c6e23b62e79318296ebab91bff130379d248ada57f044f77e72ccd 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":"v1789796056710","kind":"published-quote","locale":"en","page":"theme:atupri/quality/en","quote":"I can't open the app after the update.","rating":1,"review_date":"2026-06-25","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=ch.atupri.myatupri","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 (2f068f3de56b…), 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.