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.

“Itis an old, well‑known and trusted app with millions of downloads, lots of positive reviews, a solid reputation, no ads or hidden trackers.”
Google Play · 5/5 · 2026-08-07

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 2514654467

Proof data

Record hash (SHA-256): fc24621749ed75218b2b6dd7cc6384ec54aad38618d92d965df161e2cfeb7c3e
Signature (Ed25519, base64): 1dr6vJ/tiurmenbCOnl9jUvrymUmVXg74KWIFh1C6tzv77CT2XZNe9vR1CfWttLOtlp+ULgSVXSU5YKgwrn4BQ==
Merkle root: 2030d4ef17fc68fad1320305cf569e85a00baea931fba0d3ebe628cf9c90c35f
Merkle path: ["fc261e1fe7f677fed1577e78dd0681d33e31e6ac560e8469ddd41a990836a05c","f892490df4b50caaa4d5abd86d0ca26d9dbd3f1a3fe548baf277cb0d88d97c30","ffc5b479d4dc08e6f8e93599bc9a00e6f509cf9e540340aec7d724dbc0aa2835","6e2599e7ea8c0b3fc0518e94558d31fb4bc9c7fe128286ab62d2d08241a3b99a","6b128b58fcb459ec9d1b56185750a23ea84187c78f328902cf51b8a83f0806d1","e07e37a4be74e2080180149575f181650e605500e9d35f1f33e556e0b3a6cc7c","36dcef6c7a461b64d51a70177a5fd9809ac99d7473f1b80184264aff71935c2e","881165ff45ad12a86ceb09f4021104b2062752becf5f84a47c7531345be099e3","a8d4b2698a234af11f036f3b9df35a005713f7856799668954e0beb1f7f538b6","74032dd2bbc6d75704d9634bf54d234e1b73367449b10e1c5625dd17c38abf8e","ba7d688cf7aa2553a6d16d39a57c173aa2a889c551139b3c5683169b12be5b7d","ac47b10da702a9479bd116280fe3e40eddfcf168ceacbd9cb725f508893ed250","20ea0d6aeaab7028adab5147f39d1ebf52355cf181354f5c166cdff8fc496c2e"]
Anchored: 2026-08-19
Public log entry: search.sigstore.dev, log index 2514654467 · entry 108e9186e8c5677a9253…
Expected log hash: ddd8d6dfa3771a4106292f7bec674337dc9649465b28b118bb17bfc2b8ff0a67 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":"v1787132872903","kind":"published-quote","locale":"de","page":"brand:xodo","quote":"Itis an old, well‑known and trusted app with millions of downloads, lots of positive reviews, a solid reputation, no ads or hidden trackers.","rating":5,"review_date":"2026-08-07","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 (2030d4ef17fc…), 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.