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.

“You are guided step-by-step through all the questions.”

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 2890214870

Proof data

Record hash (SHA-256)

f18bd0ea239473e79b5083eba299ad8768c697c7d17fc218097f7ac7206a3bda

Signature (Ed25519, base64)

qpIBTzS5vYBKWrVwX5XHhizi8SoWevB1t0ZXxd+FrzrP3wAGYe4pII+wD2KMX7Q56wjGB3XVpJJi3wg4DqtqBQ==

Merkle root

04b39eaa56e1cf8f75dc8eac18bf6942167c8418ea731a7471223f0be60e3e6c

Merkle path

["f17d47194aecef378830e2684f779b51252d59ef5ae1934ffd7ea8ad11a7d1d6","79637f76ca499bc839f318e05e1a4cbc5e96c71cd3c0d53706deffa09b315431","faf3f07adaf012cfc2ebad4a0f467a72a772eccc543e24b41c6186e52aac1d18","fa1ba50b33ea4e9af6438ec83a7e6ef3de845943b0638d6402f57a95ceb1c738","76263842ce7b95eeaac8f2be6b1d307a57e4257c42815175e0c80d4e57566e36","c72a6c5c227c188b1fb13f11cd85a7602a6d866ccc9d643edbaf423515db6470","c232492b605b0a5656e108f531cc3d35b21609740ca3fc3695b4d8f3a506ef22","dc2c3e29e2de2bc0c7f82037719aee85af2cb84679e94479f89f141d39ae9a95","f9b98f92d4b22206db8f819eaf9935915bd9320abbb15736ed02c51819174a0b","3575d9e14ec7f9f4d02ae6110f0f886e0bd5eddc8d5f13c161a7de9b4a204ae5","5ceee1c703173a548e276ffbca1d5c367a2a23030bc2ee07d37343f3dd9912b7","e6456924ccf5107b881b07d90cf3406af59630f9ee3f7de91796507d1a32c91e","7e36832bb556fb5b64507b00f7b2b4685623b814e769e9b017578a59d2954d67","3ba88b0016422cde319348a72d81ed01eacc4bd155bae80b5c4b6ab6d98a745f"]

Anchored

2026-09-19

Public log entry

search.sigstore.dev, log index 2890214870 · entry 108e9186e8c5677af53b…

Expected log hash

1f3acef0f063246e051bf412e40f4279cb96ed334ff7b0647a13320c1b31c4fa 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":"v1789722569406","kind":"published-quote","locale":"en","page":"theme:taxfix/communication/en","quote":"You are guided step-by-step through all the questions.","rating":5,"review_date":"2026-07-30","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=de.taxfix","v":1}

Verify in the public log

1. Open the Rekor entry (pre-filled with this proof's log index).
2. In the entry, compare spec.data.hash.value with the "Expected log hash" above: it is the SHA-256 of the Merkle root string (04b39eaa56e1…), which ties this proof's root to the log entry.
3. Decode spec.signature.publicKey.content from base64: it must equal Citatio's published key at /.well-known/citatio-signing.json.
4. The entry's integratedTime is the independent timestamp: the root, and with it this quote, existed no later than that moment.
5. 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.