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.

“Smallpdf ist meine erste Wahl für routinemäßige PDF-Arbeiten”

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 2680681799

Proof data

Record hash (SHA-256)

0b04133744baa722e8883642f497e10c72de675b49d815d627df5fd4fa9904cb

Signature (Ed25519, base64)

IytAbhpYbICxc7/2ZLA/Q8mWaN1YPLCqdSJaR0IZSqSKV3h1b8iThSGb7gYnCYbM0Ze7AOAFWg1jKEjzlVYOCQ==

Merkle root

e880a518ba68bfe85ddff87a241b258528b2896d8ce031c201c4697c0b7d2205

Merkle path

["0b02850419e7ec316bb15f25cf46269ecc694c9037acbfd044d3d72e777bc0c8","6b4e816c511483764858a76f6731df7fafd813a37a1464cfbf0953c906866781","9630f6a7c99e18add1b11614fc938132d749bbce60a0ac2eac3d8139ea018a35","e0699b5b8c81f4dec629924146debff2507d40892e3b624c3691806ae453e496","f170fe1b92a683f409d75522f1ed186423c56f2ea47b55dce58df0a6da095c3e","3091515b8a46ab7ce5b0c0a84f1678686bd59e1996bcb696530f483a2a890032","f0f7ce67436ccddab0de364ec866824db121d54cc23e37a9c4093c935fec9fee","7fc85a355fc5c996cee71bd882dcdb23f5abff68e32c41107dca216c0b747b32","202f02ba19dd8e596fca46996cad34c1e82a18db9cd8c0da84a40db6e64256be","ecd95b1b3a802e5f54328817f7e44b9ff1d1a7ff1173bdea4f9523657f5fae4a","aa45589d359646fdc7cb3b7100f296d51531a91bb30633303107ad8c4d1f5594","8abd4d5b06b87286affaa0cf89ccbc72d6059bcba0e452912cc764aa4f8b3a91","0e6818b49626845facd47486279f7e4a6689ed0beda657d93a969ab184e1e0de","8c997d59f41540bab49c6414578aed00ec9a73fd31959523b43a0af5a2eb1e86","269c643459740a67a842bbee9fda4a35b5098a4f015e508a69431212a0912770"]

Anchored

2026-09-01

Public log entry

search.sigstore.dev, log index 2680681799 · entry 108e9186e8c5677adf7a…

Expected log hash

23ab6878cbb153d06d6958de44ea3fafe32bd61b03ba95bcd26de9e09248aedb 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":"v1788297623062","kind":"published-quote","locale":"de","page":"product:smallpdf/compress-pdf/de","quote":"Smallpdf ist meine erste Wahl für routinemäßige PDF-Arbeiten","rating":3,"review_date":"2026-07-20","source":"Capterra","source_url":"https://www.capterra.com/p/172606/Smallpdf/reviews/","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 (e880a518ba68…), 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.