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.

“kann keine kontaktieren”

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 2948162176

Proof data

Record hash (SHA-256)

8ed3a7b1e9ded495565f4a4ec766474a56f6fef059215542a89202f06c7567a3

Signature (Ed25519, base64)

5l74VTlRfB5ri2SqZz7R21JeLBws6lnlj6BIwUqb8gbkmAnJYENZ7LMAFq8rhwqfXz6cLbzUpu48rGiRrqjQBw==

Merkle root

5397210619679ac63434abd334c13f5aaccbd1dd184ad9d8cac5ebeceaa346bd

Merkle path

["8ed2f1620afc81dbda33ac0fed1641a544f0a1aa3c07f636ea68b1de8e71b4a4","bb139a94ded976b2dfed9f771faa66df0e15e8f09313514e89096ba4cd62f2fb","5683936ffc15490606ebe5de464274eeb5857cf58311591011b7e637ac782dd2","f5ca99b9878cfae7a52c6ae24ef4ff3dffd66ed6d8a3adf363a817224fb1eede","175a95fc7e90328aa9bf6933d3b9e456387c25c03d16bedf1ae4f744335b2362","1fbf468932a77be0b506d0a88bb716ed0a5e63a18415167c9df1660e7fb3d996","bb62afa62717a47d1c8ebf216f2588da067afc806e11a20d13a83af0653aa83b","a0d8b9d496caa73ff9ce7cf97f41f9e8efd46822a999b497523c5fd1802cdf6f","4694323d05ffcbc084c42a2e935977527d0f05425407d85fec01d12f6937c23e","634f6b6cc7ff826765065375c2a18f12c37bb54a3f38c203409b7769e5211847","4f4c1c2371958b5f2f1602a242e309641fe1ee3faa18a23254e8446f76bc0a62","57cef6631396d6541da6e13b3470e6b8a464094ab53c852077db03ccc58bc7b3","cf100015419b4e08a8d3e2de5cb23ad7a262130bd3e6bdcccfa47329e90a07c9","468adf75cd56eeaa89e39f50b974b405db9921529d680bbe88ff0d1caae6f316","77ebbc5a767f49a9f64068a716a8c843de0ea8d44adc624726bf46e2e415a41e"]

Anchored

2026-09-25

Public log entry

search.sigstore.dev, log index 2948162176 · entry 108e9186e8c5677a61d4…

Expected log hash

5ff8f25b7934b5d72d363d6805344624efba4d637f2c851f11783b259b9d81be 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":"v1790226990092","kind":"published-quote","locale":"de","page":"theme:zasta/communication/de","quote":"kann keine kontaktieren","rating":1,"review_date":"2026-08-03","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=de.zasta.app","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 (539721061967…), 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.