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.

“Filling it out was easy”
Google Play · 5/5 · 2026-09-19

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 3096409536

Proof data

Record hash (SHA-256): b2688a0f500ce0c9fa1cd21560cd5108f3582623e7e151213595db51bb3fa4dd
Signature (Ed25519, base64): EA+o6V1Us80ib/mDbXdzlCqgDo1TL58F8yJzDdyM0mYLQjkW3O8KDHCWNelWJS0Jneaw8XeaRrhDDFt7CJzKCQ==
Merkle root: a249ea91ed6d494b0d321c9d53d89a7bb9616ff6f558eb56f9ac9b7e3eba088a
Merkle path: ["b266debc50db80f2855f5ef36f85cf03a604016004ccdc8d320fb4b8e96573bf","942fdbcde987499e339ec4c350f54f0c1545e7b74c3df6adfbf0549cb018c4a5","22e8f050a2e6ea444830e93c99d47d6e0b3038692178b7764fe4512a267b1ff4","9e3f3d39c4d6a4f70b0622fa321c7927f5a5581718db6a212355209b5547a218","80bbfa643a729355d30780da41ccffaf7475e8fe2f05486189e81e4a165421a1","869da5818351fef27fb5e0fe6652c2aa46f394333e3c048cda26621208bd9cb5","0886270a38e141fc1b8bdf915c15818fb41f1407b324f0ce3a6fc9c4ab05865a","f9a9fec89461f12fda028619fcc0a5e6cf733ed821575a7642a0be98d4fcd708","bc0bdb8c72b5dac854945a37f297913b176cb3806e02c20efde0493af4146f90","a3e7a8a45e02bfa4329d4e221d81c3723a9ce08e47044a95f362862b30b140ac","fcfa69bd4e002758818e9e92a66699cfbf3cafc2912f151f9d1ee27bb754f2a3","3113db98697a2d81e2d1a8635426c538de1a8023922baa1397d2b8dff58d7fad","6d4e0aaa1218c63e05670159d9ab730a2774327d59be1c89fcf07511e0ded3e2","6f5950090de794fb9a8ae3a7ab60079331b76ac93dec1ecf10ae185636fd9411","c7ac6cb920cf1e460ae014f9f7e09e7fc4988adc232ef0b46ecc1420eaa09987"]
Anchored: 2026-10-05
Public log entry: search.sigstore.dev, log index 3096409536 · entry 108e9186e8c5677ab1e1…
Expected log hash: f1740c5ce7036e4f36513fb4ccb4f6bf95b5dc879a1fb8a1f0778ef42370576f 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":"v1791238940340","kind":"published-quote","locale":"en","page":"theme:zasta/ordering/en","quote":"Filling it out was easy","rating":5,"review_date":"2026-09-19","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=de.zasta.app","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 (a249ea91ed6d…), 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.