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.

“Man kann aus der App direkt drucken”
Google Play · 5/5 · 2026-07-24

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 3240367269

Proof data

Record hash (SHA-256): 1dee9f16da6d05bef03d48ca42a0918e3b5440f5d288672f6af8132062d15d67
Signature (Ed25519, base64): JMI3AN4jyASD6gGGTx/DG1P2i2BImeuH00Lh7adF7uWoqrR9+CD24ZfdX2xxbZEfSGnSbFKrcOtZkcTFlFWFCg==
Merkle root: 1da6cf8d96c8876e66e82e9bea7529c76d7e25eda1c07550505caa1baa49c4d1
Merkle path: ["1deb5e6d666abb599dbeb3bb6a4f858393225e4b134fd8830a82cba259d1671f","da3841ae3fd19ca966b3a70ab5f2026968b1c3983b3cad8f85a92f7152c3ca49","43df07c7e2bff0fd6e9ecdbbad11f2e8c9ec555b075f274df0c9af5cba35e5a3","77591a5f5fc4cf3f9f6b04a90b62a1a32889f62519bda08efd875e5d854c592f","66be84bf3e023865c6c55df81eebfa326920ab6028e2c7d6002b5adb15708693","2a4f132801f6018f6c6449ea9e95d88e4e2b62e8e1c4467168aaa840d9792aa9","f2da4d8dcfc1fabeadaa32744e1e577d46f9f642f405a9db27d1ddf443047018","ce8f215d2702b4f37ab52dcfd10d3c10047d7f9f6fab5729086f11189f873713","f070f54df217de6d9d0f3a34c698d97c6c31286601349ac03b532ac67aceb8cd","82cf3938827fa9fdaee060126f8a9a71e48049337c248c8a1c96462a2edfedd2","4538d2af88491ec228f1721babceab1a37ac1f9230be10303e5ffe866b674232","ae52329abaf68e9da165e516499bae5b8b1835a4e008f4e52a7a7b160cafc13f","d0886e619546ab8e630cf9041b21d39a146861d5b7598b5044808c3537212a80","2d81003ff1cd2149e42eace973cb0f4cdd39b653f7b06a20804a1f1025023ebf"]
Anchored: 2026-10-13
Public log entry: search.sigstore.dev, log index 3240367269 · entry 108e9186e8c5677acf8a…
Expected log hash: f6397ecd2b8639a3c60345d0c567eb602411c7eb1bead248c760bae850816087 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":"v1791861381931","kind":"published-quote","locale":"de","page":"brand:acrobat","quote":"Man kann aus der App direkt drucken","rating":5,"review_date":"2026-07-24","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 (1da6cf8d96c8…), 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.