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.

“Am Ende habe ich 4€ zurück erstattet bekommen”

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)

f3bbc5b521d65b9f7e69c82b2116b1c104a6e4f5ead479f7e0829a29444532b7

Signature (Ed25519, base64)

6ksYTyQVtgN/dcRt3FpFwMyBnR1lNa5taI92nin3x1hZDaS6s43ilNsw7350HO8GB1MZ2pfUniDD4IajDD8KDw==

Merkle root

04b39eaa56e1cf8f75dc8eac18bf6942167c8418ea731a7471223f0be60e3e6c

Merkle path

["f3bccaf7dc53cbcda47d36e24e51c26321f00492c05dffd82fcd8250ee35b765","0dc25d4af7787985381177a6f6a1953a46b71fa5d220adcfafc8f9d99e49e6d8","bead0573d3d2e11241de699e4b573480d3a87b4e356859327e784b4fba742b0a","8d08581f48f7ceb4dfae19de6ccd348243741efe50cebd2bb7fa791713716032","6aba5fb1719d2421e3d04489116d77846748b3086f6d94edc516350d12d80161","7a147a5fcf3d249f7218c11bcbd9143de241a7f5e0754ae416ad1a6c83800d76","ebc205e5847153e2781aba7bec43e1255ff242c529a289d5df4eeebec07020c3","b36bd0ca4f99542d110ccfeaecef8ce08249be18b5380eed17f2855832f59542","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":"de","page":"theme:taxfix/returns/de","quote":"Am Ende habe ich 4€ zurück erstattet bekommen","rating":1,"review_date":"2026-06-03","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.