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 einfach zu bedienen, schnell und zuverlässig für grundlegende PDF-Aufgaben”

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 2882354328

Proof data

Record hash (SHA-256)

03d69e11e344061997e1f1dd0e1b74f8a0968d078ea8cd74f0da2ea644b31362

Signature (Ed25519, base64)

MjxY7b+ZMhkX9W3A3vUjfHLm8w4GANhYTWZRHP35FKHX7ET84aGZNGCSAWMFFtZVDjSmcx6e4QOr5+odNspABA==

Merkle root

a893faa173c6b378c8d050262e841ab57fdd89b71985eabc0906c40abd5b6a6c

Merkle path

["03db8de47dc67c93cb6ce2e509b7ec544ef19dc81d12ee82e62c7850147575bf","c216665fb14929d615639fe79f6279cfcf527b8c7f5e5481d5230deda3072e36","c40793b67e014bf49bd64b87190026fc6c84632cd8d8a66a6320f08a0aea61e9","a052de1bf8eae462e9b3ce9f8155cf8e62b0eb5f76ee24cf045e3c94aab309eb","1f7e77a12a8a1579a1205c14786ae47dbde8e1548934033b15eb4553ebd6c3d1","c480b79e2767563a47932ec550781e42264c2fde3d38839c0e12050a1d9479b0","39a1d13ba521f6675e0f4b3a1bcf0aca1961abb9481693c6cf83cca0021d8577","b446a3fd4273c1626fb5d87c5ffdcd6bd28cba75a519ef3ee2413f67d29f0407","e85351435736ba9e42343d704912ff586b2c79b493967346b5753c36f32c9445","2671bf0dea19322bf5ff00d01a78a789422e0e012b8fdd31515d04194b880af4","f36df91338c091ff7554e3038f058fab1d7f030932e187e2a17a6e637ab5b430","eeb0191e819461d67046e8c9e0ea5e35d219e9b877b9e670c3710c5d41b21c5a","ac84b40c079795f897b874e92b06e183fd354538d22a2dfa07d743913040a0df","71601cbc06cc18d15a7af93021ee7957212de37616a4dedb4252c015daf6350d","5153df72155ae00831ba1e4416296382c39280ea82c989972042c066f445006a"]

Anchored

2026-09-18

Public log entry

search.sigstore.dev, log index 2882354328 · entry 108e9186e8c5677a08a7…

Expected log hash

5510a497abfe2e680a39c301b0d905c2a575bae0a1f389fbdd7b86babf05240f 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":"v1789619628558","kind":"published-quote","locale":"de","page":"brand:smallpdf","quote":"Es ist einfach zu bedienen, schnell und zuverlässig für grundlegende PDF-Aufgaben","rating":4,"review_date":"2024-11-18","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 (a893faa173c6…), 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.