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.

“Mega nützlich, auch in der kostenlosen Version.”
Google Play · 4/5 · 2025-04-24

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 2525430207

Proof data

Record hash (SHA-256): 698f2f9ecbc2a5c28b63c17a39b43e4e2b42ec3ee5d39f1cc62953b3c137f38a
Signature (Ed25519, base64): iIb6KBn99SrImXz718qUrCgi24Zky5x3m+pJhcua3+uopbz1xsUhh8OtZhTV6NiC3v4kPm0UlrxWDws2O2VGCA==
Merkle root: 689da4f5bb049dceb797a1ebd18ec1f343afdc6a2eec17587eed167cc7c21a02
Merkle path: ["698c9f6b2a627f0910d90730b5b68c258bd6b424a97ebb929e1ecd9ec3fb8b43","0fc2683ff8cbb5ec7e997840cf126a7c58a6e0295433db513dc85cc3d2895642","3ae87b859917c66a4f8de9cb28e2983ebe95d89ba4bb51a632febe42585a4702","0f1a468fbb459624d201b6a95545808e78990d14a8887cf2e4010172cba34f0e","600ad5b1b4a5008ec6590d38d175c4bdfc36507af3d721619a0039264af70317","3eb623429a9b0a55f18ab6012cc6c30e6d73be7ac52fb1170e03002724d80a22","f2fecf2e69b02e4bc82de6383fe7808deba18a7d516a5b1e5acd4a7741d64eea","d350e6dd6d9706b0015b3539946cd520e472fbfc8faccb4e09dc16d053f12019","8c42ca31cc4b9c5f93f94476906a465593e26ccc3b1ecb2c1f6b67b7f1438c07","c2910d1602e06d1ab5a75f8bee989d45fa2f4d6388f49320321eaf41086aff69","0dd94d8d58916b3b207317bd4d3dabfd8d1dc6babf8169aa82e30e0ae6f48a49","e52807ba49278ac85cc42db949aa1c46fa740ef5b2997288deca3c708d952970","f128e8f5929cc7f54846ed139d52e3f2557063fdbc2de3535e57d991ad26ea3b","f868ce2794bd46d50ad026b012c7d42f09aeedca360fe9248ca59ded31015a27","2492d624e607c70378839deb70fe4bc4c618faa9a11f2be7d0e42b467b07d755"]
Anchored: 2026-08-20
Public log entry: search.sigstore.dev, log index 2525430207 · entry 108e9186e8c5677abb21…
Expected log hash: 68e6afcd6c232c11ffffa818a4cc0c5faf1a86dd24e2ab2a7811fa1f4f43bec8 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":"v1787196781193","kind":"published-quote","locale":"de","page":"product:xodo/pdf-editor/de","quote":"Mega nützlich, auch in der kostenlosen Version.","rating":4,"review_date":"2025-04-24","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.xodo.pdf.reader","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 (689da4f5bb04…), 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.