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.

“Die App erklärt sich von allein.”
Google Play · 5/5 · 2026-09-14

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 3241341297

Proof data

Record hash (SHA-256): 5e5eac390e5c4a32a05aa2b5212fadc8703d5b57593f4faf019f4aabcee590b2
Signature (Ed25519, base64): RS0E0Eq8jGOzcwXVCrvKjNfP1KKfrtTvek3NtTwCrMrpRg5/n7XPdygweLQ9ryJsfFgvZvdXbJ3kSbZ3VE5/Ag==
Merkle root: 4900b1080bdcd3b4c9234f01647614e7004e0a1ae01ead44968e31abeab33265
Merkle path: ["5e607ede51dc392ca162a424b9c85a6f49906dea29353e07d4f8713ee8af33c1","f19d6fa35630e0d0b3f7f00eda6bf553ec74567a4a8aea44d0afa29836f3a4d0","7b79d46c4be0aff90cf48bca2f94af20f54174065a3164bcf85758acfc82f2bf","91edcffcf7c5156fc6399c233f5e94153aa4488d3718fab65dabe5ef8d88d84a","b1780f8b287ecb7f99c06f7d50c6e505f468a7bf8f463e2196cbb799abfa8af9","64f33ca9f54862addf5634051a8dc3a38c15b260f7758ee628e30a0824190dc2","10bddf2e3cab745608b0afdd03ed70a2b44ce8ef13bfd789ba04706cb4aba640","0e03075b00021882d9f4de364a50b44ffc8ab4b799e3a99a3db852eb9501c9e0","5b8cbd6f98da5a939b43dcc5a17678ba1d0ac7092f1430a83d28e0b7cbae950a","6e306d44c3bbf63ce227a4257ba5e05acfd1629f02466cd29f5c80ac63fec52d","17361d2175a6014fc2dfa30fe0ba75d32fc3ec969aa9434655602a07b59f72e6","8bc3d3342d538ec2e52c4659d41fadb97b0038a716b891902f4266532368bde5","fcde407cd823adf65f7404afd4b1ba5062d4dc9b443a0ef9b9102b09f040f91d","0a4842003c61f69c5923b6aafd56426e7fe934e483f7d15b620c07fa61f89152"]
Anchored: 2026-10-13
Public log entry: search.sigstore.dev, log index 3241341297 · entry 108e9186e8c5677a0e53…
Expected log hash: 39342fbb95f8cce5be4111719e5450984494edcdff99b8bd9a5c0d2303b67943 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":"v1791866192176","kind":"published-quote","locale":"de","page":"theme:zasta/quality/de","quote":"Die App erklärt sich von allein.","rating":5,"review_date":"2026-09-14","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 (4900b1080bdc…), 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.