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.

“der Preis könnte Günstiger sein.”
Google Play · 5/5 · 2026-09-11

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 3248278454

Proof data

Record hash (SHA-256): 7aa2431ba26e023d30d2780eb5657e0207ee5296a0b0fca0686fb7313d6ffd14
Signature (Ed25519, base64): LojQfruRsUkscPrsA01kornEfiGfHY+PIdbRfY4IdnYInFerGhvyxW/NCT6fO/wiTwYYWxloS55Mmdlh73UzAA==
Merkle root: 81db1abd6b6e636da393518bb64e907fa9c48581b44ac2be5a9e74d02608e451
Merkle path: ["7aa174713a1c6c1baa97ff5659a18d75707bc4351430962dc46f95f6e891eea9","13a1cd5610dfedee84da5692e29135e97e261af0e47b6682d8ebde3774d99d83","4ccea05575319554cf9240bf8ebe21df8442f2b174aa1ea0dabd4b83b4be2ca1","e2c50faef8244618f0c41d2578ff4a8ab5230b5354e00c416ccd31b50067f409","f11af992f7aca0f8f918a8e1da93782d7f47a56370872e8bda71667d04b0a92d","ab972e4dc46c64438bb2f6110b13f782d4a13af4ed22b6cc7916bd038d0978b2","7a86569c6a4d1092096d4b38c5961b262e61db72f65f0dc2bce86a279ed53b92","e303b07a63551389e630ab3b65d2845813dd05fb5828eb7ce5aff84ef47b2e7d","04681faa3c506f04daabed3f1834ed7a68dd254d356f695e5361198c0f2ced57","74275e72237c14b7fe42fca8e3f3f85205284c262a20695368fc56b5ffa5e643","d5672bbb31e3bcb7edcc920562704d162edd377dd0f14ddd0a409a526cbf8eaa","cecda8cf59675307c2097f3c9b95f70464ca6c0cc9dde9f98213537f2b0274b5","9fcda85d8e37e19a15f376a43900980403d080527146762503d0fea51bd87692","6fa310e475466f0115dd6b7ba199f23e915f2a513e2610274356ac5bd367e940"]
Anchored: 2026-10-14
Public log entry: search.sigstore.dev, log index 3248278454 · entry 108e9186e8c5677af67c…
Expected log hash: 4dfbbd25ce402c4821f7e2d50b18e091e9a30465f45669967c545fb71910f358 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":"v1791948368672","kind":"published-quote","locale":"de","page":"brand:zasta","quote":"der Preis könnte Günstiger sein.","rating":5,"review_date":"2026-09-11","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=de.zasta.app","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 (81db1abd6b6e…), 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.