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.

“I've been doing my tax return with Taxfix for years”
Google Play · 5/5 · 2026-09-15

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): e7212a058f7706b2e35caa7d3836163cb019941c793986316f7de4b69d5ce7ed
Signature (Ed25519, base64): GlEpnBZrtbiLT3jvXSXww4Lp0tHwn4ZR0HItPd7l7oRfCqY5ldvsmdgAxH8jAKFzFEM8oScTXaotKT6iHZpyAQ==
Merkle root: 2f068f3de56bebe7a575ba4a979c9244445d2350140e36238e088fa40fbfdd88
Merkle path: ["e71f9acda64e8e7dfbec938caf6e5c20497fbab1992981f23f2c58bcd5967130","54586b640662a61ca85745387d106832f7dbf4f9123ba17511844767d2edb1fe","33f18362a86264ec76705cfbad9ecb5748cf39314a1e17f34d1cf6542fcd82f0","727695e528a09fef1d9890cac3b70c2c18f647a8b5c822906cd99b54c32df68b","3ad694f31c9b6963b1e06822ca1dfe60d093e123db607d078437b1f27b466669","b6b69e6c059b80294ebb2c2c4f5739e30357f766375ddd2b1a47463010e436bd","d52cc3b41f872f088a9b479bfc3890f1dba2d5bcd531c7aa76ff63aa5ccee337","a1d11f24a4e3b2330f0cd85fa36c8f30678a5f1f5d775e961db831b73a55a8bc","8efaf117ffb56bb8c1fb2de61de6e374a450f551a8b437268b500f20e2b46596","4aaefa4eb20024e4aa383f59cbd2d0fec42292305e1db86ecb95f4c9ff47b4b1","7aa45ce6be7da29aeca0302d172ca2874a01f87e6b4addfd75180817d87f4620","adfb7af951ab6d82fe2ac7465e5f822234f3eb32c74ff914d3090db1700baa73","34bf35d805c4f7af315854dc10a7a10ae0ea054d46dee40b360c3f04f8b8e60c","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/quality/en","quote":"I've been doing my tax return with Taxfix for years","rating":5,"review_date":"2026-09-15","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.