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 2514083622

Proof data

Record hash (SHA-256): 5e85d3c58ee0fd1624e757d9d35da72490597f97223cadaa9dc25b51ac2f80b8
Signature (Ed25519, base64): EXgrh2WgCy3jpOlMoY1/OJUOutqTBtc8V+ZTRHAW8O/S8p1WHnW6WIcQes44d1X7P1CSEF5RFovwtU98aOU0Ag==
Merkle root: c35385e3159410853b606ace3c93abcb561dc35874bbfae2272c5b0050f06a48
Merkle path: ["5e84924c318b742afde58c9b35a9a20df81d88570eceb2a408102a1fed65a26c","469a030bc95702095c3e93d6c24d55d4b38dfaad248c7d9c248b64ce31d6ec56","f23ad9265fa588288c8aeb030eceb2124df9628c79522af9607538db6555cbbb","c46edfda7bafe1dc827f016a9c648b55224b2289d6e46834b47316d7cba646b0","6160ab2f3739c4ab55197e9d4d98c94bf04646c776be6e5fe14cbde9c92698b8","bb5e7226cd4e8e44ba834da1230b953c556c3a778c6b0c191ae8cc29dc751926","95d6dd9faec6179113b94b59700057ac647f4fc2931e0940e01702dfb193dc19","a4240497316b335f8ba3d1319b8cb0934c21007d1446c5ee04543fd473fa8b1c","53d25c0f4772d5d2e4f94bd89d3dcf6099a2f20ec5e35c38be388fa510aa1fb7","11252e9f15859d3e6bc61de0a1f97a5bd82d4f039cb0d8be384099cd064e7a34","be11bc87f8790d4addcfa08de8c2cfeafbd372403a0ebef523a4219e1a420d99","33ea98be770acc497c774691f204ea0282278907217ffd9d2c364175aff036fa","d918a76d70ca16d9a207b045c1def62fa9a18b9e3a8d1a952eec38a09a66a9c1","b0eaaaf0554356daf48535f981c97bcdfd635e531452842df23420c0f264e90b","19399f0af13a2147dd8ceb83692caff2214adce3d49571e366dcfb3633df2667"]
Anchored: 2026-08-19
Public log entry: search.sigstore.dev, log index 2514083622 · entry 108e9186e8c5677a81ef…
Expected log hash: eb47f42546fcc705387579993679cd6250c0b995d01bbd10805cb4c8d66efe2c 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":"v1787123762743","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 (c35385e31594…), 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.