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.

“sehr gut vielen Dank an die Entwickler”

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 2543025731

Proof data

Record hash (SHA-256)

77e872bbdd9015376003b7889a8490955204aaaf915d90cc103681f48b4a352d

Signature (Ed25519, base64)

wXr+EZ2MUAGubr0lVorU/VcuFbjGKW7VxWJ3yCz+/vDdHET6YAH8rrkI1MC06IUcKxATZrYARfZyarZNAtmaCA==

Merkle root

172a3e0b3c9f8b02f52318e01ba6beb899404e00e91c15eebc4dea38467e1404

Merkle path

["77e82760d90a6e6ae57a41d55cd8ef5e95d2f543be338e25cfbe6c1f2e25790f","313a72c346594bd1f393c5bc795c888f29c87ce9eea336d81033424cd02f1d79","3bb8eed56c0f234f64eb8c40503840683959ea5b0abc80f3cf08000f3c90db3a","c3264b71c44dbbf2d505b0b53b997f6b4861a4a81b9388898561eff252c9bfcd","c3e346d5efa263fa9ec2ab1560ee05b8408f6b93d2bbe4af2abb34a26a2c6c46","61667ba6d707224b977c28f658741b481d566f1a3e480fca71e6fe02c227b6a1","4790e146f4c5cee05121e0b5eb61bb57dd08a767059a1632e240bb75559b78c6","79a23ccea497078cd54cb56dcb6cfadadf7ad9fc34f13785bbcb8bdada0426bc","1c414db941be58c662828eda50fd398787fb1b494373b042849dd23b9e2bd15d","461bba575a215008d6ffd77493d70cc2cccc5ddabce5962668f2b3c8a1f61732","057312bf19bec52eca79696833e9284ad3e97909571c00140a1555d6764df41d","1f567a3fb36c78ae362612f4c99cae95ae4dd4ad0c6c633328b659341fcb6d94","f12a899e5c92b32cfe903fadd591410ed4da016670fe0a40b993afb550e2e37a","cf4d3887edb33be9d7a9e64011338d9abc8444e06d1f5332550f7686a2c1727d","7731d0ded4f51d151ea3e84474d1e27a6279e8756420c93cf5fec0abf7f11add"]

Anchored

2026-08-21

Public log entry

search.sigstore.dev, log index 2543025731 · entry 108e9186e8c5677a8971…

Expected log hash

19ecbe4a66d8adbd7c6057dbf6ed9be73485c248dba1e0c595279a908b3e8bea 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":"v1787283443958","kind":"published-quote","locale":"de","page":"theme:acrobat/quality/de","quote":"sehr gut vielen Dank an die Entwickler","rating":5,"review_date":"2026-08-04","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.adobe.reader","v":1}

Verify in the public log

1. Open the Rekor entry (pre-filled with this proof's log index).
2. In the entry, compare spec.data.hash.value with the "Expected log hash" above: it is the SHA-256 of the Merkle root string (172a3e0b3c9f…), which ties this proof's root to the log entry.
3. Decode spec.signature.publicKey.content from base64: it must equal Citatio's published key at /.well-known/citatio-signing.json.
4. The entry's integratedTime is the independent timestamp: the root, and with it this quote, existed no later than that moment.
5. 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.