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.

“Nach nur einer Anwendung”
Google Play · 5/5 · 2026-02-03

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): 12d32b104e504cdf15cc0b0f3516c90e80c939ed2de17baf24f8c3d8ba2532bc
Signature (Ed25519, base64): 67A4Zs21IKEwjKPtFmdfL91u/Z+mm30LlDAPEOCkR+q8euuToNxhfC0vMkPjEbU24aI4VwzNOPetULObcdXMCg==
Merkle root: 81db1abd6b6e636da393518bb64e907fa9c48581b44ac2be5a9e74d02608e451
Merkle path: ["12d086f98f419bd8fa86a47d56d10d1307e4c10dc4266d511f51f18eb8a7c66d","133cdda47974c06a87e2e6fb53681889cd1581bc9296cc84a315283a2329c786","279efac029c0cf838abfca4fafb08ea5a32b8e0c43cb0d67e6e7273e4bd3a35d","42b33331ee2a197c9c6b89b6cb3f971179d51a791e76ddd61f1ce12228e2d4f3","c1f3b6bbc9d11b92fecae9d03767901d6cb964a4216fc3ffe85404545b65a113","36de1d3b77c12d2032f52fe02031a603a50e6bf7a528bb3325e7cf16cd75e709","c7995ef9ee11465f94ae5974e1b893b58eaf0612361ae39c25e1d66565d90d03","5d6215d107f61a3fc613d23f9815b5255ae7eb7ad4fe43bc12dec1940997d821","ee646f40c307288bfe97ad041ba1b2cb56e65ded05ba50128b5376a12f2a8a3a","2352dc22a7600618dacfc5b2f3d92dddf2586316585115dd80a41309e1e40b7b","9008bdb00edbaf075b061c2195544fdadfcef10f8389a786f7422f7a7fa7a2d9","0f8ab31a8b7f9aa6ba4ff019c72fbe9792e5837d40b3bad40ea1cfb0cc79e40a","4fd1b36929337d346b3723be273df6d7588bc7b080f058260d538b3f309857bd","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:acrobat","quote":"Nach nur einer Anwendung","rating":5,"review_date":"2026-02-03","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.adobe.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 (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.