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.

“They change the background to white, so 95% of my documents don't have margins”
Google Play · 2/5 · 2026-10-04

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 3140838741

Proof data

Record hash (SHA-256): 2dfdf326c853ba0392900f35fd7bbaad299dec7e46fbad7a17321b639969d5e3
Signature (Ed25519, base64): A5WBZ6SPD8oFRGi0AQ8VG7oBINcmCxzA/5JLP7nF18VpnjsWFEyu77HKk5iDZU7ThMVSSKwsQUBqrARDvNDdBg==
Merkle root: 68ee5f8618d9ce1aa33f2cb5b6f3145b5f909a3c35a03ccc3d10e979b2f81082
Merkle path: ["2def19d3ecf0a14cbf3c35a060a56ec8157d425b8bbca11a1a860f4d437e8816","aa3c43701b4c2f58d1c533c97cd09adbe37f1458ce8098d7103f0f01137fd7a1","9a756d7bd29beca7e179aa4320767107b450987f97a66efb3cc3008e7bfcf82e","10e94697689a8be555af9b17378114338be1a885f2ae74221d507f4359a989b5","1115c3c2535dafe5596f03ad6ea2c3d87f4c35732d77853d82f43d9a28ee1688","0714ee7123b70be1c6b8a9cf3f875c7d8b796d87cb379068e49451ca4ca4df73","9f350c7eefb5dc8126eee6386bc8782a0f2a5d7006dfa9136a6b7a4962bab728","45148504303559c9bb73bc401ac154e4ba25ad3d87b94bf9b5869a1f15d068cd","2ae6c8d54cf61bab34a8ad9613aab6557637053a26034d1e6068e9ba4c3526f2","405763f2b8a9cbb340b0b54338d44b47d91dcf0d00bc7350556df5cb419a5a2d","f5f19d5d2d00726c169827891513a445432473d44bb70e4cf72a3765daf78772","c0b0e5d80d4c20548f54f9b2ba03e64a0ebf2086ab62be23101b4e2701c5cf78","e6960377f92ebdc1b41fb37d3ed0decff1e5fba5b62ad653e7be0f8408d1c6c3","e66299710f80b56c392136748910ac59d79a991f3e479ea8a96c5c23e200aa78","418554fa0ebde54d6cdcc03145c7126505ed96d3734e8e7ae56dc0dfd8ca0a2e"]
Anchored: 2026-10-08
Public log entry: search.sigstore.dev, log index 3140838741 · entry 108e9186e8c5677a4791…
Expected log hash: ca4949400cf2d29b49789563ea2e672fc73762380548d6fd65398e40c0d98728 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":"v1791433229105","kind":"published-quote","locale":"en","page":"brand:xodo","quote":"They change the background to white, so 95% of my documents don't have margins","rating":2,"review_date":"2026-10-04","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.xodo.pdf.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 (68ee5f8618d9…), 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.