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.

“For a tax return that is largely automated via an app, this is way too expensive!”
Google Play · 2/5 · 2026-09-04

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 2893887498

Proof data

Record hash (SHA-256): 9ebb72f0579deaebb649a52eab6a88cba6d12bbded85ac80722e66cf49225ab2
Signature (Ed25519, base64): ySP1zkfnOd46jC0YgAzFncuS5sMvswAEeh938JUzzeBNXjqIZ9xJ1rEcVwAkEay9J8DjDn7gMDE7Po4K/j5UDg==
Merkle root: 2f068f3de56bebe7a575ba4a979c9244445d2350140e36238e088fa40fbfdd88
Merkle path: ["9ebc99215c55442b8ce65aae374b6dc123126be200e1c11870f7a1503c4630a8","283efa38b2d3b574bb2daf3f2429721e0cbdcfb17524ef1b11a9c8e62f0c382a","68036a46f839a641335004b8a02dca07afd55687934a27316f8d5854513f0ec9","aece62498f76589583773cff2db7e5b7328cd898d5fe86a86adb4a397fa28af0","8905c1fa9c40c8deedb26707267ebaedacc8ec8f7df84ec6adb9b4a808f5b0a9","d4a4a3144eb8583cd31d9d90ed5bb9415428077a4f1e5f8739deda31338b711d","6f2e9457f0d300378aee9105e03df204d6ce0c735f8c9a1c4343d47eaa5192eb","6cdfce0e81aeeba1d0312104eb71ae4e0b50a0ea3c00a9543f17373182e0e6e8","f2aeba8d7293d8a2ed8310e1f25cb48243b006c21f0ebabc9abf00be45ea5526","fb1539814ae62de202ee2fefd9122b21acc357fc969279106663a92dec15da18","38d792e5ef64ac3356d93357bd9309dcb9785c5c2c5d07379ca528ac390214fa","c22fe83bd144008efb96895e17f4e6f8919a56dd8220cca85f3aa44cd67de0ee","27978d996981aec54e7305bc9bddff422c8ed02487f8eaef12f84d0b2ba90b9f","537f00dd60bfbd8c049786f7eae4da8a735af5b60dacd3bc1b6054b8ac3175e3","58a3dfc9ad8696e92f5fc9960e9c6bc4cc04e270091b574a948593298b33d1f5"]
Anchored: 2026-09-20
Public log entry: search.sigstore.dev, log index 2893887498 · entry 108e9186e8c5677af79f…
Expected log hash: 90099e0300c6e23b62e79318296ebab91bff130379d248ada57f044f77e72ccd 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":"v1789796056710","kind":"published-quote","locale":"en","page":"theme:taxfix/price/en","quote":"For a tax return that is largely automated via an app, this is way too expensive!","rating":2,"review_date":"2026-09-04","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=de.taxfix","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 (2f068f3de56b…), 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.