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.

“a subscription of €13 per month for occasional use is exorbitant”
Google Play · 1/5 · 2026-05-12

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 2543547848

Proof data

Record hash (SHA-256): 6f5c2a47ac1d2ce528829e30c4ab85b93ac683c1498a286457020a5b15c51b29
Signature (Ed25519, base64): N9uKPMgBUvKaTKbpRMEPDY5Mse5gTkF1moMHnL9tgs3bAoEXrUWHOws1W2dYr/kpeYxEqDVy5xHWAAKjnUYqCQ==
Merkle root: aacc11945f125ee3fcdef86ba030016c440bcc608f4e51f0ffffdb4cdc5e9321
Merkle path: ["6f600209c02850383db50d35b26e416df8a2d1eb1e71c6e9b3c8e4bf671284f0","12aac227337e59184e6dcad79e5552433ef240d5c309a0376f8622b1c6877c90","e525675a21bfe797d4818e05d0737f3068dd9aa635f61475f1d507b4592ab513","8b617277e1d0efaa3971ffd1fb9f3f500ad5bc9cd6a55b4b897109b91dcb1667","b8342257d7f20df7a0ad1bb884924fa6b6868034eb331c89f683d4b0f49cf320","9bd0500adc7614fc6e471b54cf70a62014910c524733485ea566a50cecdf71c4","0f5a558df2826c2000fe5362efbe76bbf8d9ea21d7f416bef077c94b80bdfdb0","68c091085e82b626c6b22ee38c22d8b23d2f3c6ef0ad99db7f0b7b323a5af415","76fcebc815fd81a9a24a26a0c4da97404515254bf582175e21d6f18e80d0a21b","3479de90abf3210e5e66d0cf00892b21cc682cd02ccc8e292c4644331eba12fb","d6a08a1e56d1d5912fb92f9324e0bd850845e7027234ade67da7263856c0847a","10417bf8400d993dc5bc51fcb3c27f6a0c34b723944b9a3d537122bb9e0d2970","a67383a47457a5cf1d5e37868e4ed4249ae6b4ada373e7ec00eea3b30391affe","b1c6c1169310bc9b3706487a8b54e13d2c5256c24253b48b4df6440bd230af21","2309962142b16600f7fc4d57273f3042f382acb91be89aac7f00112f61b58f1d"]
Anchored: 2026-08-21
Public log entry: search.sigstore.dev, log index 2543547848 · entry 108e9186e8c5677a921a…
Expected log hash: bb93f13ee7a4a636e28586b842e19662b148eb18166a89b3ae7d189bb8e81689 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":"v1787286345433","kind":"published-quote","locale":"de","page":"theme:xodo/price/de","quote":"a subscription of €13 per month for occasional use is exorbitant","rating":1,"review_date":"2026-05-12","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.xodo.pdf.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 (aacc11945f12…), 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.