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.

“Es ist sehr einfach und effektiv zum Teilen und Entsperren von PDFs.”

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 2631758752

Proof data

Record hash (SHA-256)

09e95a34a8578d53450d9a6187a87fdfb95fe792ac918e3460f961a3435da422

Signature (Ed25519, base64)

vwHNmS/HrvVY+cRQPxuX+Iuv9nTwzw380QmGc/CV5Z4fyY15qZBRLJowr6m1PhzC8g3xI8nrvM5bWYOa4tdrAA==

Merkle root

a705e7ecc0d73eb5dcdfda7cc03235bd57a2851764423cac43118a70cc8e7b3a

Merkle path

["09e438a71866bca92405a38a5f78a18d79ff2c0ece2e7495e5a25dc501782e88","1efbeb903e63bcd9d0e2c8c681ca02c74c289f2550ac2e6e1ce062f72862f72d","a6fb7973c04129d3ec6a8a1d2b4d768271db684d3f0287858eae12204c81604a","70ba5b5f546e2fa59d92fe96cb847167eddc626fdecc2cae29f7a00a91b4b1c6","00cce5f962b10d370a20199330ddcb87ad040e9609c4092656298c7cae12cf40","f79c8c0c993e4b088a3c376ec054f5633c323975b90b9e8b3fd802247d5900ab","9e57423dca8d6190e5c6296aa96d929a65a19ec0f0c2ea4cad9dea0e02195948","e7f337babe00fc44d8b3acef3ee4598e7ebc1d1cf63d39c9e7db2441a9432a70","fbd91637e8c6fc26dc44ff2c056fb67c9a2763b722f87f922f6d1258c7dc272a","eb2c0df0ce17569867f7fde0ac52c350aac9eca6c7062236340507eafe39c2a6","2eb67b6dd2ce13ead3a6b8bbe53693e9ae2e03b472c64c48d866f83223e73d64","3d0dd87ae572e5992156e110773d66a0f1bf3ed6de2e93de25b994313f23112d","654e62da0e54472b4b5b9c8deb017fe0e371cb74d7538ff4ae544207e1da0bcc","a2d692bf5b7994c15c39856193482ea7c968acfbc3ff4915a355d04b18f7a933","79a9e38b2f2eb947c3bdfe67a6a6b2d9b99dab4a357fdf9e6328275c8035e767"]

Anchored

2026-08-29

Public log entry

search.sigstore.dev, log index 2631758752 · entry 108e9186e8c5677a44e9…

Expected log hash

b9abdd1fc769097342b82449a3caa919f2ee8419634ee5ba00692ee6314109be 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":"v1787969636370","kind":"published-quote","locale":"de","page":"brand:smallpdf","quote":"Es ist sehr einfach und effektiv zum Teilen und Entsperren von PDFs.","rating":5,"review_date":"2026-07-17","source":"Trustpilot","source_url":"https://www.trustpilot.com/reviews/6a59db08daf65d0ded36d520","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 (a705e7ecc0d7…), 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.