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.

“171€ bekomme ich zurück”

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)

e28a426fd7a7ec45d7cd2b28112b8bde37e7b3e3caee69f1aa048d9f63881630

Signature (Ed25519, base64)

2O/kUJVl/Q/RLImCFrGHCJDnOl7r5bq9wNmRot4y+vnvwrVY1gjybq1WUcT/7cVhbFENrPA31c/fnQlAhYkACw==

Merkle root

04b39eaa56e1cf8f75dc8eac18bf6942167c8418ea731a7471223f0be60e3e6c

Merkle path

["e28f000f3e7de2a48aa451afac45df269734a03636bcf5b21feef25d73df1c7d","94b7ee5c4c7fba6cc7b8f6c26e10f819e6be5049e0f9dd13409a9e67dd8913f8","e6b9d2d61e2793077a5ace530130564089f93ea2a2bf72c65df9cbaf61a208fe","70282eb75b56d927fb9e2e1c8de3be597319e1e565ffc522d2789519b336f196","674a5832738b245b8b291f4c5a4ea85abbcc738da820ebd74f5b1978f852f3c7","414dec4e81164d3e314265ef3faabd592e1eade6226c13e16272048481b78a79","f70f38b5e3ec018b4790a7b6ae2a717c95a1a3f850f205c8f28227ebed9a8d8f","0ae52bad0530de93b2293e9c37bca8eb9b327cfa4549646c10343da971cb4cdc","e5917662620315f371343196ccac5e4f14f041a5961108ad774a7c640cdcabcf","369b4d49909ed5445c3dde584f2d34afaa96e49497cf409b31d773a6ffbf912b","fc1b9cb992db441adf10533e2ff58e33b25ee980d3b72b0503073ea4b96e6dd0","7d8dcd3c2c054442ec809000987dc404e49a1634f4740debd1444d1cd270d9a8","77c7b6988870e1e90529e81d4533964f2663907157dc1c87878656cd074ac437","8f074eddb198349108c1e544aa98c8c80e756f627b29b4943cfd74cb3331adf1","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":"de","page":"theme:taxfix/returns/de","quote":"171€ bekomme ich zurück","rating":1,"review_date":"2026-05-06","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.