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 2621931690

Proof data

Record hash (SHA-256)

08fced85a07eba49204652dfdc0dc75d6d44f63b115905215de69ab936a9a002

Signature (Ed25519, base64)

igTnRi+gsR/1ex1PDkCQeoJJHl+TxXL/aVUm2WuV+lAG1lplxXU1tnSl6TQ5csHtEPd2wz12SOWj8fb2cBzECA==

Merkle root

1ee209bed1b4afeeee81ef09190ce0d3b99a421ee0d9b4b532771d9d3d94cb97

Merkle path

["08fd449c40508b507e96e084b1075a91c394a2e6de1a1e461fdf976955e87869","7c9669d39db65d192b2963092a938603b820aa766c3156551a32a95fc1bb7a3b","d03837ac48a03eeeba72fcde4a0d23263ece543d02672ffae912adf504b0d2f2","015efb2d53c2cdb86f8ced75e16b57afa708fa2103ef20f71cfa7e946e29c94f","5a6ac95dd00996de3f3fafd05e3b5faaebaee22e339a8e646adead7b85c4d9d5","e8cd86631111bcbb888bcc156432eb995490c55b5d0a8ba390e4d5b2561b54d8","0866ab39cd73abc27a58b22f352e4e565bc18b7ee05fa94f760ff73bfb8f0a73","a579b468c0e9ef025fd15958c4bf60b701758a045c9230b405c37902843f9f62","1976645026491601a33a4154ea19b60d2020ccdf14b4c1293bd7711dd86b6465","cdfd0e91fe04702ab536275dcc922b117f9574de5cb6862aca089e7386ae9f6b","7e9bdb0dab3be5bbddba8a5bb068826bff23e9ee43fede2353c7c9388fbef043","be717d82336b8a702823d0e7af4f2ae950108670f84436b6f309cf0c6c06e1f6","6e8057b232d63636c1f7dae5369f2ce496d13ac0298d4e729a4f5fea7d1d003c","228372f289d42aa4e04ea339823d2801b30ff06ea98e88b25dedfab148039385","5ec5da736cacffa4888d1200ba9c58ec751132aada3e6a09e36cdbe25e528522"]

Anchored

2026-08-28

Public log entry

search.sigstore.dev, log index 2621931690 · entry 108e9186e8c5677aeade…

Expected log hash

d994a621bbbd8dc49979b621c8ed37c232baaf4093de999a10f35ab0baca4376 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":"v1787892752320","kind":"published-quote","locale":"en","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 (1ee209bed1b4…), 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.