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.

“you have to pay to save any changes.”
Google Play · 1/5 · 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 3220996539

Proof data

Record hash (SHA-256): 10c180ed7f8e12aeb81e8aa628955442c98de8ed521a2a6754a6f1d5cf181959
Signature (Ed25519, base64): O2JykzMS1sGFZiu60C4K8feGegbBLwTV0oNdU9N4xf+cHwNgtp/aDydY3CQJs+avsNnIu0yLigKpz756iA+8AA==
Merkle root: 1b0b408c7cf60721bf3cca50f4b7f268b0858a42fba11906e486c6694252cb22
Merkle path: ["10c4340bac65989da12221843a1afd0ff2db4c795f347395fe83a5942512b858","3a32dced67e5cafa6fcc72bc87e5672255ebb8f5c70e7377709581709082c4f4","db86abf4bcebde3fe515822f280595342a18efd51abed8e488a98f6f2e56b668","dfce93d0c76d799ff02d2feaee425f9b196d7c0a08dd572be18e9a767137341a","181259d9d5f5747b0a505f5ce4480e88c0280476b78fcab056d0fd013e671861","0b7f84d04834f972ea16407daf7978b8dc4a2cb394165b9baaed9bc662b7939b","560306fb9e52d7216d3af4a0ca6b9102e34fde942bd2a4c4f2939e7c00bbc6ea","7ca789521ee8218c04bf2fb15d71dc6779bffd636041cb52aa92892056c0a0ee","0d4b0899dfa706bd2dbfcf5b65a646a2716f6f10e395c2a627f69839e2dd3966","aeeeb16151a162d2b27624e00c86c2ca5bd8ba4100a8e4f29f3d257c125ed826","4013b5e2460ef566687158f1fd705e4fef92694e6adee5c4ee856d013971efea","affe0a53d536804a9512c630206a4b534a27488761c0b34e6878dbcba4a8ae6a","bd64ca269edabfbd30efee623435236838862399942a0d08ad142d3df41d1142","8547750c311d384cbb1a945300d6b6fb4f4bd2b78af7177366b3baa4b4c1e724"]
Anchored: 2026-10-12
Public log entry: search.sigstore.dev, log index 3220996539 · entry 108e9186e8c5677add5d…
Expected log hash: 00694de1434e648cba57bf07fb439ed90ba501083441667555bcf619bf5edce8 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":"v1791779426071","kind":"published-quote","locale":"de","page":"brand:acrobat","quote":"you have to pay to save any changes.","rating":1,"review_date":"2026-08-07","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 (1b0b408c7cf6…), 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.