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.

“The file list utility lets you add existing PDF's to the app's visibility, but if you try to remove them it deletes your original files..”
Google Play · 1/5 · 2026-01-07

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 2670724217

Proof data

Record hash (SHA-256): 0924b05c59775e07c88d7ed5976d2445a4b99d86b01c3e74376f2782f70df05f
Signature (Ed25519, base64): GxfNk4jg8YQbYHCXxCo3k43wYwTLGRq1KHhf1nqmvAvvrl3Md/GWcq+ZkD3/yAwifCpSInMkxxFEvD1Z8rUZBA==
Merkle root: d1a08bffaccb4bd5530121134500726bddd8b9ce14544f30c175069340e2f6d1
Merkle path: ["0924eed7b307da83e83ff6df45e4ad0c88b6d0d330afdcc234d3acaa25889072","85eaac1a64b27a39d15384f29e06f30459f78347effa84ec146b2f02a270d982","e0ee0080ee031b0ba590e5ad3a56f1afebaab71970060080faec80179a30f385","996ebde41410297a2d96dc74252d1c1a5d3cb1dff67d807395bd5d11339de7d3","5af67cd7b8b35ae2e63e1da3f50409f9fbd2e2afa5c870e84461a399519c44bb","10a03efd02e2dcc572b87fa02c428f48ad689cc9e1d05ba29e192c10334520ab","474e3b29982aafbd57a50576785c28bcbaccc74449a68d44e0edf62c20992741","ccba445140b419c0f6ec913c1b5d42e28bcb08577031e9602948f975c97fccf7","9190d1a1b3de99b9828762fea2ad0c8abb4d5dfa81665faa3a05abe762904785","8cc9fcb62d91cba50080c41074019df550002d38c8caf0e6578e5703999df9dd","9eaa2cb33eab31da34a1f7ca1369a872d958dd47513041518cd8267e3e3e12c3","422708f79a43a06560c2c80c58a4791f51a0b5498182b85809a9ac791b982ec6","25b83424b4327f2e26a2b3a1a83c1014ab2556207095e3d1112c414a2906928c","784b674df69e59ae8daa59037ba258b386fc987e1baae63fb09b14c7d0c016b8","09bcfd9352291a4c3cc61839df0884138937d69497778283c8e6e0793ca45e03"]
Anchored: 2026-09-01
Public log entry: search.sigstore.dev, log index 2670724217 · entry 108e9186e8c5677a8322…
Expected log hash: db226267e29a9b0d4e7d26b93b25b0493252e02586281022df7cbce6abd08871 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":"v1788230131663","kind":"published-quote","locale":"en","page":"brand:smallpdf","quote":"The file list utility lets you add existing PDF's to the app's visibility, but if you try to remove them it deletes your original files..","rating":1,"review_date":"2026-01-07","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 (d1a08bffaccb…), 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.