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.

“Sehr benutzerfreundlich”
Google Play · 5/5 · 2026-07-12

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 3123908662

Proof data

Record hash (SHA-256): 12f5f899029fa17c9be1077c9369b7bbdd6bd74ee17f86c43b494804caeb3918
Signature (Ed25519, base64): vSkWo32sROoje2iBbEB3nH5obHZESPQoXLQomhTfzHNs1pNBdCB/5wZbZnWUYsZ0rdVk7t86t6zKwl3aAg6nCQ==
Merkle root: c53673589b1f41937342019e079ee2c0ad1635342b5b2a41cc71894367084fa3
Merkle path: ["12ee123c054f781b16b1f27848114043d593dae6762dc3b982c663d1af641ec9","7d4f1952781bc4c3e26a051a656c127cc65e650a37324a3dc9d38be10401aefc","15c597349ffd30b2c89f3068fe21ae7e430600f3fdb7792ae99e2a6be3d2f41d","4c5ad19fb179475eec991a86a28f6e2f9e8e19180ad956b2aef5be171bdd67c5","acf728bc5201bb1824a8f3db29a08ca03fdd8580d0d1309df53f21044e0287f2","23c79df03159adb37605dd14f0501a30aad891362788fa76f1a4ff317ce9f5b7","f4ca06a185aadd72803b45dc71edfbe47a86e4f9288fa812e7fe1341447b0a62","55500d4b05ce2757a692da8313f1dc3877abbdb69b66c9f2d93384a9d1739147","6cbc994ade9c93d120cd81779da814fb9c1e4b064dfeed1af7357f745efca684","202de394b403163c47f0f2a23f1717b8a7f5a9566bd7091cf4faaccbe61b905f","98d35751d7b4353baf863fb383f9a6d32f1f24468c0b6c5ba0d517ea801d4e88","819fa491974273a7a11f5a702a87a424f5950ee00dda5f56978785f4dbde325c","6347feddd7eaf9469d389bda6e1b8ff87765f8c85d403613f77df274dc0914d3","60db5b960c74a953fb3ebb541be0d84a0946a38e137e13155b739ca3fdae1b05","8308334b0715cdc2685afc133c95aa85c9b86c8dab9c8659092b74cf2783feda"]
Anchored: 2026-10-07
Public log entry: search.sigstore.dev, log index 3123908662 · entry 108e9186e8c5677a51cf…
Expected log hash: 5372e71f27172d067b5d688f48846b5317672647da39397abf474cf22aba0576 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":"v1791348381030","kind":"published-quote","locale":"de","page":"theme:acrobat/ordering/de","quote":"Sehr benutzerfreundlich","rating":5,"review_date":"2026-07-12","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.adobe.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 (c53673589b1f…), 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.