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.

“OCR funktioniert nur mit max. 10 Seiten pro Durchlauf”
Google Play · 2/5 · 2026-04-11

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 2495260497

Proof data

Record hash (SHA-256): 03c787d6a1cf2aa42371bc547cc4a3ff74c9ef2c4c4c6b9d624ee3216c3d8893
Signature (Ed25519, base64): 02thK+Ylf4crymIUxD1sh5t2UGYTe4mOGG/VRMC08I+XLGgEFC9iGyZ8JOVemTJGAXmqIAhfnpUZCJo+XfYLCQ==
Merkle root: c0f03d84ec6a08e9f47227502d608cb4b9559e04dbc44c0c60dd009e5498fd59
Merkle path: ["03c4afe63e0e88061ded9f4fdc431d46675bb1e494566e9973bf3b8b3ba9c94d","6615509505098bf2b0c18f9b69ae013afa2a7de05becd39cb120af11cefcfa15","17b0174582f99610c9627e557698f7fb802782ed1c337db598d11a1569706d85","5311b2ede86640ce0fa70493bf2008df9d4ac05fef953df5df757cdb4281f70a","1a7fdeed39be34403e88618c02af0b5f9a88eeee5c818149e88b660c63255036","b1106493ca0035eaac451a5212e05c5b74680dd9345c3afb7aa993a0d3d02b94","56e8ad379705b1226754bb5ac87cfabb34961ad94d562f5b30f5eae35e4e4349","2420277f10701dc446e5aac607ef2a8816850b9de3e3e40fd5c9b56744c172fa","8a9322ba1f99f75ada81adc3553294c37bee574ee0647e059ef0e1eab2a82b8b","98634efaf3eaefa389526d57a08e1b1923aeaf98c9cb88ff9b3ab16e5ecbd8e8","afb0341739d6cce0e2ec3740342d49c9c355bc10c2c61f734a4e0fb601ac5f04","93dfcbfaa14eb9db410e98e1c9ab62587ec44d6ae69db495f0c4162138a42e24","1957d236cf53056b1ca60252c2186d847ebffccfd60d6d58be8dcd8b61e2e273","25ab3670878dfae1375e1b324da09476041ebe2bd7713b9236b40404f8afd0ba","a4d2a95b8c12efe70f0dc5df164839a5ef796b8ba35c8ba29774bce65792792e"]
Anchored: 2026-08-17
Public log entry: search.sigstore.dev, log index 2495260497 · entry 108e9186e8c5677aab72…
Expected log hash: c37699e17d2ce6398bb526dc7ebc97861528e4e938842ba464fce3230eb047fe 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":"v1786937421185","kind":"published-quote","locale":"de","page":"brand:smallpdf","quote":"OCR funktioniert nur mit max. 10 Seiten pro Durchlauf","rating":2,"review_date":"2026-04-11","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.smallpdf.app.android","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 (c0f03d84ec6a…), 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.