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 will look for another app in Italian”
Google Play · 1/5 · 2026-07-15

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 2622255255

Proof data

Record hash (SHA-256): 0bcf22782cddc1ef2b19e859c11f4559b41a5df41bd3aed68202e205cc392892
Signature (Ed25519, base64): reLMPEIk9wi55rUVGNSvhORLSdCE1uXQQeZRHeFwcpKQPdParSwjoVo52GGr0ZDksP+IXt0DUQ5+ZrYwxvNOCA==
Merkle root: 21e7bb8f2fd2dd8d8171a23c0a79176483db4731970a3fe8e0e328189fa103b6
Merkle path: ["0bd0a79ad6d5a01473d8d14a31f013be2fb98f6c902e88dbb8f762fe754fe447","cf685e4ea45d387a394a136af2e281dcdad77959616e7810dc6eb896dc929f09","8d0aa4c9e7e3f3195e770cd0334148aed5145b8ac5c0f0c1e9b0602ce1d4be08","6d14b34672b9533fe4053bd80affc78d952428242d6d55c80d102504974d368a","738b58607d1fd60c0a9e8c042bd475203781e651309a0752416d641c4da737a9","72794a93d7b35a3f1c54e1a46a913ec542f6169d75bb28078d28c97b2611ab31","810098e4bc60d9fe37f9b630d1ac9edc8be5dcf5e087ff98cfc3adb7fe4ffedd","360c0d818359ff1ad5f7229a72ca2f9d4987e28e91276ff015a10b5629fb7fd2","edbc25c81d58983949f42186a7240070f5c3f6572f66156e87a45f64edb93166","d3fad7b39651a11b07e68e39f831dd0070ee86cbdbda97f3c478198a95e19533","dd3edb0688c7a9ecd6fe90d84f7990928a6628bea52955f52e45c6241e62d66c","a27949797d6acc76608eb2454a12e7fa3b0e23a9ff082297ecb4e8dc4f5f392e","3cea60263bc32cc376b16e1efd7740bffcfc93464b1276fab6e76a09df031faf","26fb1a8f86dacedb6315aaada1d0ce79d7f80a57d9cd232cbd85d2599cf8282f","2b3a1c21e085528ee4dbbc92da4d806c0eacec4cb4b4d9f473a6ecd411dc064f"]
Anchored: 2026-08-28
Public log entry: search.sigstore.dev, log index 2622255255 · entry 108e9186e8c5677a7795…
Expected log hash: f2a0e8f2b4dab3949c746be15f65076279656fc5309daaeff038c9a778ee0653 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":"v1787896781880","kind":"published-quote","locale":"en","page":"product:smallpdf/smallpdf-mobile-app/en","quote":"I will look for another app in Italian","rating":1,"review_date":"2026-07-15","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.smallpdf.app.android","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 (21e7bb8f2fd2…), 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.