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.”

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 3248278454

Proof data

Record hash (SHA-256)

8e44ce2c2c8c9f6b61f89d8f3a0ba0e5044b12b88847539eb33d9d630c9ae577

Signature (Ed25519, base64)

GcMndjmmxMU8/fi7uD5QrnmBdiT1A+EoMvrItMFf+HDyRAda4/wvZQfWntM82Q/puY1w20mMJ5focoXltMK6Dw==

Merkle root

81db1abd6b6e636da393518bb64e907fa9c48581b44ac2be5a9e74d02608e451

Merkle path

["8e3fde965dabbfa25f105e253f0b7fcc53b405cc42d8bf8b165c4430ff13a9b6","44af2f269089cc86bd4af01add04ff7fa9720daa0bb5f93426e7e2d04c3e0ac8","f4ac3c9c741da4674903a7b8c14dfb8a667d65e0645471878009cc1260727556","f7eaa8475dd2f26f0e7df923caf10d7fc5f0fec27ee777cd90d63ca8599ca28b","02faadb36696b26a78b21e2f7380e7da41b2a8dbdffa00ff8cbdc2f0cc1f267a","87be5f3220524aa138841becf0d44353f8e46bb613410ba8271b7d35869397ab","30c4e3f5bf159d466f8faee02e0cf442fc70e768755863d2bc810d297f64896b","ff085d9d404e538e82b1e66bc5e1266085540eace688995f40a0d213a3fa135d","e7ca6ce7c6712d045e919e716b70be51372e5b916340ee05369e561cd897db78","ca94b80146621e4263a72c73633e02135fe1a16abb8dc55a5c20aaf825808e1b","1a8747b07d7161eac7ca5f171f4d0665a57a3d91c239928f5b364567116fadfe","0fbe48c83f3a7fc54e0e6f6b760cf4208a99354beb22ae100be7dc95e97847da","9fcda85d8e37e19a15f376a43900980403d080527146762503d0fea51bd87692","6fa310e475466f0115dd6b7ba199f23e915f2a513e2610274356ac5bd367e940"]

Anchored

2026-10-14

Public log entry

search.sigstore.dev, log index 3248278454 · entry 108e9186e8c5677af67c…

Expected log hash

4dfbbd25ce402c4821f7e2d50b18e091e9a30465f45669967c545fb71910f358 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":"v1791948368672","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

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 (81db1abd6b6e…), 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.