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.

“signing and filling forms just worked (unlike all others)”

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 2524810465

Proof data

Record hash (SHA-256)

68c0ab97c2581b6c4bad282df0653abdbaeb9b587e31b44d91b64aa67ecd0475

Signature (Ed25519, base64)

r72cJUyKr3c4HUg/3EKZjOiIEHs0ezeUfpFf043J/AJfaMB66Cy7CvcmL1aqa1rY6r+q5Ir1nifdIES9d6sGCg==

Merkle root

3e1c67438f658ba7fd015e6979c1bfd82d90efb0848cecbd4d902d6b2ed171d3

Merkle path

["68c10c10e4bcb3f813ef7c25538563ac385f7913533b9edc115c2e27910879ed","4413ccf7fe5a8fe92499790a83b5d13f86df7fe7407869460c488f2459454ea3","8f8fabcdcd800f39a2b4fcedef6d602f5cfc7ab97db751be1b86f7f2446206fe","d7fd53182bf7791b234b78dfd091547c0edec4042b656b647b02098276d080d1","184059f3541001f9403d18e6ba73b4d3e4d73a1d72ae7cddf4a3dc6fc9ca5ba2","43f8df6a5b81b5a6605df9064d49241954e812bca958e78028e0b849b1223e7e","dc94532736c0e2e5c37974b0bf0a93271828783c77aa6d5c6258eace64d0e11d","5d5875c826a0d2dd089329eb176c1c001adcd5e3191a6d81ac5b89cedc557ac1","d2a50574a86bc8b78afef6396466e5d5a972b15a6f91bf5752aa6fc578806197","bf2b134c4b3ee26d7270b71bc815a7dde124d0b28886904773b30ae213b0aa73","746854386f8f12bbd3256a032f840493051d001850691719276a200b1fe9063c","8795cc9548a27d4792f561ed0be236baf1443f07eafb28127c878d07543db8bb","985842e3b7b7b05d065d3478b9548322db9ef51189928c897e184837afc0a836","16ce5ef98bea97aaac8d473cbc69dd111bbc7f7387aea9596c8bffc373b8312d","db72b82118c1e08b77018004fa72584377d6eccdc4c75ec19bef6a78273f75c9"]

Anchored

2026-08-20

Public log entry

search.sigstore.dev, log index 2524810465 · entry 108e9186e8c5677af074…

Expected log hash

129b219cb6155ac24569a579c61e8fc9cc2d89305732944b8849d5e719dfd073 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":"v1787193927339","kind":"published-quote","locale":"en","page":"theme:xodo/quality/en","quote":"signing and filling forms just worked (unlike all others)","rating":3,"review_date":"2026-07-23","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.xodo.pdf.reader","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 (3e1c67438f65…), 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.