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 is intuitive, reliable, and packed with powerful features”
Google Play · 5/5 · 2026-07-02

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 2544092674

Proof data

Record hash (SHA-256): 9af80e6f38a6c63432db7c9a7f2a29f2c33e990404ded7544e1aad321f8c6b09
Signature (Ed25519, base64): Ot+R+ZTzuxFR1Tn7Ko9vQMOhsOyqhVDC70E24qyP6cFnM1EXwCgZst0QOhvxE7ibDNK5S2yhC4ddCqvQHYI+Ag==
Merkle root: fc0474f2ab9253f8c52a81a0b2f1ae382f5f022f9b54f4e3fe06eadaf19fcf31
Merkle path: ["9af85b8e45065dfac6bc128cc8c7ea40b6f1b0dde20d91d7080afa0721d07ccc","5ed398f2aa6d5e4199c004772937213dfc163bdf6bc860d3e294be97e89e8a6a","dcdf7e740a61cda94abfcdb8fdff3a55015911f13b351acbe0c5b86375a6be9e","97cbda2234f9f1a959672c0a24cfd269ee601a9866657f37087375c8ab8cd182","25d2cb335afda71ca561fb52a4b952b05613611bcd687c27a32499f9226b4d72","6f47fe60678fbcdc280fd78f7400b2c3aec9b078df9c08ee2c5a0d36843abc8e","0a9a1cb886eecf7a1064abcdb8fae1920b27171d90c13e111e1e24527979291e","ed27e562f6c1da432cd37ebbe2be5483ad946c49174ff0b3a3d3d15933089a22","f93a9b614ca9dd60eb8ad02588d5b02804c4c8f3e4c785573a939e7777fc062b","52d1267ca96bc086c241870da129f00a1d54db0c9cacc35d62ae11963b2676bc","0912821dfd86de47e5b9c0db3cb62f2bc1a72349a93387e4be06d09dfa033b0f","cb2b4f59994725cf02a63867bfc02fe1256e514638d04d0be65ba55ba1cd6e2f","61e99b6dc1806028f6bc5e945f2081b1c4bd175ad3b4e48d4edaab9b636e85db","5e3e14a1ecafa84280522a5086c1c4eb7da1d2c5613bfc63f3fbb10c0768d98b","df2c1289894581f6e22c526afc719be15b70c61ef4fbef0978dff78cc8fc6054"]
Anchored: 2026-08-21
Public log entry: search.sigstore.dev, log index 2544092674 · entry 108e9186e8c5677a1b30…
Expected log hash: e3ca1014bd6a1a766a29da72cd2b9f7f9c6c416fe6af720fafa94eca555dc171 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":"v1787289954326","kind":"published-quote","locale":"en","page":"theme:acrobat/delivery/en","quote":"The app is intuitive, reliable, and packed with powerful features","rating":5,"review_date":"2026-07-02","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.adobe.reader","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 (fc0474f2ab92…), 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.