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.

“am einfachsten zu bedienender PDF-Konverter und -Editor”

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 3241084060

Proof data

Record hash (SHA-256)

0003dd99c91cde3b64ed403956ec63fdbf0b9052164e45abdfb18c6e4b4fb96e

Signature (Ed25519, base64)

P6BNyQl+/fZh6zabsu4l/sEoozAKTCZq0HRkrCn9fDKmrGFyJBAxBFTaBKPTqtwKZulAWJcTb47pcgHzGCI+Cg==

Merkle root

0b0c0499033d3f9b3953d31e6c838f88f12988dba810dd4de44922e1b60fcdf6

Merkle path

["000cf7efa5b7aad98deab1496656359d1b5f6a95bb297a300a10d7b37927922e","0c26bc7f63927c9e3e2f0450bc4d57c06603833fff1620d25e7b1dbcb1dc2221","3d1b150179d559167e546259990a45851cbe33c35478116783167944b861c8a6","350362f15972c8ed1c64c5602ee7b7d30142d5ca7f31c845ce589d8abcaca75d","c71de62afbd195bdef76a265792ee8bbe59a27fc5d42f780182056fb9e343572","d7ec0cc5425896dae2384868ccbe08b9cf3f6bce21f253d8b806160bf3c0b522","d04d59f4761717c0692220f09718d4ad03d889363345c956f85355d7f2b92f1e","5858b3603c4424111297398e48e90b67430fbb014ba0eb2ce9c76790f002306f","553508c154d6c4d3929ce548db55cabb933176c25463773b6d702c714e2c9a6d","37982a316e3b42556cc0304b7d6aa2f1ae75cfeb37a3eb7a1df90973524947c4","854d226d64b6b6b7c169ad505a2ce3de34b55ecfef19485e14449b518af3a14a","fd4caa7c5bda5b821309f24a41bde8275c1fa51be2629af50c760cc53c258d5e","fe7751fa4b9a0ad43fe0710628b6cb1b92e12eb8a60d9f17eb0c0764d693577a","8a05b9e19287b30c7fb54816a1fb848939f3f2c84b9825f19f342683d5db13aa"]

Anchored

2026-10-13

Public log entry

search.sigstore.dev, log index 3241084060 · entry 108e9186e8c5677a3e82…

Expected log hash

a291e2473f1a4510a666e020d4d424e463d55bf4677b91eb5a52e446e5ff1581 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":"v1791865115768","kind":"published-quote","locale":"de","page":"brand:smallpdf","quote":"am einfachsten zu bedienender PDF-Konverter und -Editor","rating":5,"review_date":"2026-07-14","source":"Trustpilot","source_url":"https://www.trustpilot.com/reviews/6a5674c7e22a4f4308824f75","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 (0b0c0499033d…), 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.