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.

“Alle kostenlosen Funktionen einwandfrei.”

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 2543700701

Proof data

Record hash (SHA-256)

6489f0617fbb0bb4ecd40f53e0b22b749ab9707f9434677ebc72ae16ff39bdb7

Signature (Ed25519, base64)

iUaDR2MsJHGhlObKGmtIHWtt5SQzEmr4aEJG0hiMCgGd9xZk4VIwu5QQkMu9Id93qxE94Eh26FuNzXLsCAC+BQ==

Merkle root

c921242d78a65e026e3281000ec5ef04ef930758058c4fed3f79f3b5ef992cde

Merkle path

["648de7f3b9f26ecebb74800343c5ee4016ce2c9fe5b639f8a28aa4a2937e9be9","e5301d4fe164afbeb20fbb44bd666f8efcaa3b3316cf0684cae6aa970401176a","6666e97dc5e63c7a5ae7ccf5c49411f67e37d1ff7634f2ad890388e6442d5b52","7691cfbc6dbf089a964fffd62d58e4d965b47d297f7d2658e7f87bc2e8ecbf85","5f5a5fab5b77ec1e8839cfc356e553857417630255ebede88c3e569774ca1d8e","a6a40f360d4e7f505b9c883d93a5ed30be076bc43b21c959967c4533b289ed97","75c03114d8b937d4ab9f62479543c86e53f25446ed089aba4247ba0b0c03ba06","c47599b4d2af0de1c07ba1689f1737002009c7c03cd7270da346d320156c5e5f","bfe37010f6541c748c703e8f830fa104091e177909817a4bbd472a649c6110a8","92f6f76efc599afc4683f89d063ecaa806cc271a2afdc0aff502341a2f5cc11c","5007beb72247435debd861a7b507c7bb6f2b972888d1614fb470338686a57938","c7f1bd682d2372a571af460f6db6329aa6d4392056d2c542b2f8aee42d41d110","6b2632561b59cd0b7b7d163c35b619821251fc87f905afdc68f4b8821607ceaa","11c55b906d5338fe2597d0d6abbdec07bcd15a81c2687346b92acf8d9db0c2f7","522d5a6bf348351e5632579ca190fcb390464957ba4b4698b399695ee13b67d6"]

Anchored

2026-08-21

Public log entry

search.sigstore.dev, log index 2543700701 · entry 108e9186e8c5677ac7e1…

Expected log hash

c1abaf0323b08bce2cedebaf1993162920ee741ace8973292e7ffdd13aca356b 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":"v1787287374804","kind":"published-quote","locale":"de","page":"theme:acrobat/price/de","quote":"Alle kostenlosen Funktionen einwandfrei.","rating":4,"review_date":"2026-07-29","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 (c921242d78a6…), 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.