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.

“there seems to be no way to disable autosave on Android”

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 2514602687

Proof data

Record hash (SHA-256)

c8bc7850288605b3fdfc2a62fbe4b26ea1612127bb90c4145355a952d86ba1f6

Signature (Ed25519, base64)

uy1HKTioKRUFHfiJMg4ODoRmS9CUAoXxKP7YUXLqS76+Q5WTNM5UA7yZf/zKT3LDJiZ6yIq6ka2P8zqFHwyWBA==

Merkle root

749703591848535a8600340214debbd99b61273e3bed402bec28b292f90ce9b6

Merkle path

["c8bd32b0fbbd56d5376dcfb685d700b419cedf249270ce5e6834fe12d52ed5fd","1fd5c38be98abc7e7acfa4ec3f1d6fd2dbc134edb8d92fbc4fb502f0be658b85","933f4be789cc59f27e24d87684379e680ad0227a561c792193d84ccc4215f262","23140d453186f7a066800b844816917af447cc24c7fdfd12a61b425ceb586ed1","a7fc497c86e966a1c6b50fab97e5661f93fc6a2d9f0856c5a86def81cdc0a864","127f953bec68c6e084edbdec3c5a18174f311ae032af6f55f2741808c32acbd2","93de735ea54721f22e287c91a8000736520470ea9f783f280ec1fd0fab3da106","55282a890ec4226a64e08969ffa3b567ab7e1bbf47d871d884e0bbd5bac3d346","966ce7802064e88dfdcaf509107b611ae00bb9aa429f1503578b87056d636b40","6e3c58c36841ae2f6c3779467128b1fe7049a9ed7bd6b665bd2390a3720258c2","e1ffa01f30dc662cbabd82fd233f80c74963204d6dd0f9e143bb07994970983d","5c7f55a47dec1f4ae1e00a092ed902d8502c65c7b50a8cd0fa22a67f659b4c5f","c7f0a590ed61472108dc84fd4f831265a56b9301e93e2296af7bb9f0a4cad359","3a5f53ea444f142a988f6ae277939cb6eb91c4ff0e850e312adbb60ca7c4d1fa"]

Anchored

2026-08-19

Public log entry

search.sigstore.dev, log index 2514602687 · entry 108e9186e8c5677ac525…

Expected log hash

e53e7f935eb508100ef1046b60c784e0bda15dd54afae176c275a97cf1f64052 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":"v1787131269839","kind":"published-quote","locale":"en","page":"theme:xodo/communication/en","quote":"there seems to be no way to disable autosave on Android","rating":3,"review_date":"2026-05-18","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 (749703591848…), 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.