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.

“bin seit 2023 sehr zufrieden mit der Arbeit der Steuerberater von Taxfix”
Google Play · 5/5 · 2026-09-05

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 3240422411

Proof data

Record hash (SHA-256): 59b1b13717831b5bdadb161d5d87a0c84b0a2828ec32ff1cd955dd61f99cb2c2
Signature (Ed25519, base64): AOwPCOhA90b4kHBiD66DL8PB/8SyC9K7U1+f6RATK33epWCb3mn+FAlO0zQvUXhbYeYAmkK00FXGYhhCsmOHAQ==
Merkle root: 825dbc6ca55f00c6c81d8de0f7a080bad31b79dfa0e721dee7ded0e9c294ebb9
Merkle path: ["59b116defd4424247739182ffdd4904944a4979a6c93690fd4c7831af2fe43cc","311c2858d5e37ed672c2a77c9febe5607dbbe9e0269325c505f39d8ad1de6058","c1e83750d5fd6fcc04171ffd83694e1fd062e74810c0eed9f4f6c4cb8b06ab8a","075190401f1148150efed97d0f6d8e00db8dea542e43c8793870f4b3dd1afdb7","ca0cf1720a66caa7fc15778450b99516bc7e515f0c39a54231ed7c39f0961139","f37d40584276f37ca5561f5a8f51355b4030ac18711d5babd7806e177f28932e","acf4c7bc36b467a080642715602fb4b0e855ff1504428300702660490c0a5941","812738907537182cf2c1a9f25e153ff075799f8a45f3460269fad38b203d69c9","9bb78615665ca103e8607033f0b50f217eb3f0e711e9b679e01e05622f663633","a7ccdfca0a6b688c7fa497616932440eb34d61a20c067f0ad8b1c4afaab4bc24","31411c64260ecfb382a1665604620e53b234798b6bf64622aa775f696ba085fb","b21f6fad7bfd243a35e3d331c6476f7ab24e9efb16bb512123e70fa3b40761fb","30ceb990dbcf69c7449b46a359a0167ed6280c6b62f1ee6cb61f71251c1e9d82","04c4bd8a9ef95bf5648c9d023612bd1f2446e83a6dcf83e612d031a5ea30e90c"]
Anchored: 2026-10-13
Public log entry: search.sigstore.dev, log index 3240422411 · entry 108e9186e8c5677a0ea4…
Expected log hash: 8667b0db28913263098c19cb6387cf64b6d68b1b8f2c4242d3139d96cef5da0d 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":"v1791861703078","kind":"published-quote","locale":"de","page":"theme:taxfix/service/de","quote":"bin seit 2023 sehr zufrieden mit der Arbeit der Steuerberater von Taxfix","rating":5,"review_date":"2026-09-05","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 (825dbc6ca55f…), 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.