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.

“Bietet alle Funktionen, die ich brauche, und ist absolut zuverlässig”
Google Play · 5/5 · 2026-08-02

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 3124493015

Proof data

Record hash (SHA-256): 123d9035bccaa75c5b871b25ec2b989a5ab02a25eca6fdfcffcd519cff5c4445
Signature (Ed25519, base64): cTqp3Xt4xLSIEXvlnsPkPdku0GYHwpHVk16WZhmr+ToyFTreqP+5Nl9Il+W7YRWYhRgEZdNdffb2XxR/hsMlDg==
Merkle root: c481d62412848235567fda063ff4784e8e49df41ad8b5c570de24ba396415d22
Merkle path: ["124bbce0c66787bac96549735447329c0a9c6fb7dc52b14d21098a14f2396f59","71bfecef5e398d0500469d716664fd5cf14da146765b48a2837dfea57c79a18c","f883b1525f89216f764968fa7ac626065fbb23087163c59ce9bd53c48a36c5c9","d39b2796080753bd3e4d496fa2a69acf865025497d817662f0fba60f3d9ea55e","d45d3cd67c16927f617d0e417c94b70865b063ffe2c24b7cafd86b9691a69ee2","0705ce928df889f05ef7d8c30bd9bd695daf7f6503698748f37d979ed394e1bc","2a72190db5b8958de93c32848c1a72019d42be9cde7603f2d6db249a6125b218","d774705c50eb6d4f5b70df9beca26929aba9d8fa55441a0ad829ca890bc7d49d","fd297a5b24fa7c7caa104cd3137d72ef9a84aa3bc9cd770b5dc1ad98110e9a89","3bd3d4ceb1aeb6027d4c692ad85c8d61e4844287a6155a8752020e595d920726","9ca821772c9bdad98e12eb64e11574220c9ced0407a8412a20a61baa3cc69ced","1e420c13b7798af08501fbe6365ddc5b44e5ea7ed3d656d15db245d747c77a23","818f0135095488afaa32256706f222f09138af7de4410ea79d618f621eaf5cb2","ed99a4b837bfc052822e7d0dbdd9c56431a87e8600550f5deaf9f7068616c82e","0cbfc145d581a4c4b7198ff8f397c34cb4ba6263e9e9892372f878302426dbe6"]
Anchored: 2026-10-07
Public log entry: search.sigstore.dev, log index 3124493015 · entry 108e9186e8c5677aee70…
Expected log hash: 0056b042c00529af1248b70a0a2fbed761990dd7841ea722369c29a2685ea6e1 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":"v1791350987184","kind":"published-quote","locale":"de","page":"brand:threema","quote":"Bietet alle Funktionen, die ich brauche, und ist absolut zuverlässig","rating":5,"review_date":"2026-08-02","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=ch.threema.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 (c481d6241284…), 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.