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.

“It won't start.”
Google Play · 1/5 · 2026-04-07

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 2904877428

Proof data

Record hash (SHA-256): 3379c5fdb40d7834536c5fc3c3692d031007d41357506649f64f363a2bd3baac
Signature (Ed25519, base64): kbMdga439fBxZmsX3hn752hWtZHcw/EU4xYUUjjEZwQru5uoaCs8KFqIXQMwvaNetV78N9S3swtLZ5svExgNAg==
Merkle root: e299bf38720a5a91bdf63bbc0205245bccdf3432ab1652c69342549658b7a9ef
Merkle path: ["3376e7eccddc7655d2cb9dc431b5a7e7685a26583748ed2f49ab0090970ef2d0","6ecd5287fb6dd2392bf5055e1b2e0fef704322dc2a2cc6e7149db9d894cb8f4f","0cb7b8b3c41651dcf26e144f7ae695f1c65c0ea4301033a7d9a06730eefd0ddb","f203c239ad0ba1085fd39ab8e26cb282037464bfb317cec1414ee19379ea2599","2ec43382a6dfedde164d4d836a20ce181405539b378d951219d77a2128d4436b","48858a34a6240d8655be5a410efaaa72a41d4ed8b5c25101e4a5ff5f2b424383","859518b879ad5f7fe70f101c4839193f7091e90ca4a28920d0dfc4ece6ef62a1","9a31f7d85ae544593a6706d9b7471800e2c3c107bffd8534899d92cb08e77b88","f1c78f3158536e5944e7abd4397bc6a6097d87c8c3a6c376128fd247305f421d","87489e5a2ce5317cb99653d961b7c790d156b647a6571378a4fea03bb27e82a2","22f7f790928f056a4acdc3634db989dc19836ddd154c7a9b49ec17a860d185f6","357edf8b8b42fe4c3b552e7406b8bc0a14039d1d547cc663e39b36a74f79f52b","b296372665f7c3838922f5e4d88b25d49437a77f990ac53d0dda027dc9495fe8","2e838893ef313b8ef0f87568e1e691fc197dfcee84413640a12968493decac73","bce5d442c07de6307e5ea8947098e74ce88c2246eda5e5fc1015a6d7519228a8"]
Anchored: 2026-09-21
Public log entry: search.sigstore.dev, log index 2904877428 · entry 108e9186e8c5677ab408…
Expected log hash: d020708737f55ccdf49203f373fcbcefe8158cc388605556fbfda3c365de7360 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":"v1789881486272","kind":"published-quote","locale":"en","page":"brand:v-zug","quote":"It won't start.","rating":1,"review_date":"2026-04-07","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.vzug.home","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 (e299bf38720a…), 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.