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.

“140 € Gebühren und dann auch noch eine Nachzahlung.”
Google Play · 1/5 · 2026-09-01

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 3121837738

Proof data

Record hash (SHA-256): be4b41b7d2c7ef38f74cae98ec5c42fff38b310bc3ca583ba117b93467557add
Signature (Ed25519, base64): G3BMjJ7sqAf9GHMHcNOQjhyDZ7SlI3ZkyndI7oUqcUkXZRJFmY4S5oPrgf3aCrTp+rAjnDD59Pwep2VuPzCyBw==
Merkle root: 9d32c0cbfb02966e7a561566f948b48040888a6535c058e814428126106ff945
Merkle path: ["be4eee7f2d5a2725f11dab03f33a79b00a44c50b0f03a52eb7ad9f67081dfb91","c6c53ce65d2212c98f56d7d4910942d72d56f776c7294ceb505c568af076d8ac","3b45272c970b2956ca7f10cee84c35404f129600d3da5f2d689512e81e53a01e","1b839ce4da7042884f0b17fd7e8ca5690208bd9681b99f5d5618a47a031ead23","b41566ce95661ae75f5d64a3861211ad80c810fb5b485c867f1bbb3c8dc6befa","f930ee9622375f1af1b8216f1e734f00a58baa664b3118ed7e2531cc6168057b","c7ff55794a17584a24d763143fe299c4a3c59471ffabb3ea6f6c8d93a6980932","26f33256e63952ae2a67e7b3e355ae6f6659a6694ea65ed865171374fb2a2d49","3d72e63a9f467b2f284c18d225e507e9844b83f0b42ec82a8ab42068e1e3d4c6","80ccb29524824461e144055d152b2a46387d628d5b396d550f33cd50ab449270","1a210be585617bdaa4120deff5a3add9d2a917d4e3772cf88e6dfd0ff68f9b35","97abffe7339635dd3681c593a78d1c07756f8a8296a3342f5f165144e044c569","728e476eac5ac27744e23cd4278f6f9fdd37414eb1b7feb4682b2955570dabec","11d17cca86f438a5389c208279682b74cdf5ec6a6259c14178c9835300e88c85","f45a93d3e59c239d4f09cc624fafca5e2dd2db35bf5cc0cd1f1d28ecf6819cc0"]
Anchored: 2026-10-07
Public log entry: search.sigstore.dev, log index 3121837738 · entry 108e9186e8c5677a0c6c…
Expected log hash: a0090149b27e60cea52dd7dc5f0abf6dd7c00feef65be2874742fff2aa9e8bad 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":"v1791340487550","kind":"published-quote","locale":"de","page":"theme:zasta/billing/de","quote":"140 € Gebühren und dann auch noch eine Nachzahlung.","rating":1,"review_date":"2026-09-01","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=de.zasta.app","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 (9d32c0cbfb02…), 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.