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 2621233673

Proof data

Record hash (SHA-256)

0af64f012606a484b501087ec9c6a04f63adf5fab8b958608a1c7531c239c5b2

Signature (Ed25519, base64)

eXcJtzbd9ZDAXTpu2ZVmTAv5bHZME8SnWObCLg19HNY/kwb9n5jUhVG7tkdD9iIE0rIfhzrW/JRtUrt72RD4Bg==

Merkle root

3e5b84dbb37ce6f75730ed2b32f91cd71f3a65addfb4db0a36bb6e93c637284a

Merkle path

["0aff846a045a9fe4405412305b4f7b31b370e2b2f67d22854e3281904570f57b","daa8a4ab11dcf78dc890420fb400c94878d25d59c01cea367f9c00235baa9b7f","52f94c173c2513128c11598c260ccecd82234407251ef0a936fd565bb79dee78","def1ed464dbdfe3e785bfc52bf67c1779c71ac005c74514da5765a97f2265d3a","a2358bc256f5804c603a526fbf183ed0d15e5952c65ce6bdc38d5fe002d68488","78d0d1f8cb24e90a8f446ede300d91cc402912f3fe00e500e6b493e25984546a","fd1126b4646a7eb0b68c836fc4fba69002ac4cef62fbf88f8579296a020372f1","607378e3135233e9cd9c9c4ee7bb690359791d2ebb7ba1dd16d3ff4edd20f335","fa850dab30f798139d94ecf4cfd7f88261da1e07d1d995330ef28e4322a8f395","debaf961b9f3bce80ae937a96c0d042e5a43329c7e50141216abe7a8d83b5482","10a22c162fbda998ea5360726ee71b1989beb07f86b594128a247662b281f52d","5e1d55cc495e25a055082f31061576a01811fae87e315b90c56cc742da8c21b1","09ffd4ff7f987b3f51093f1e58033f05d70251a8231cecee13929f5904d44057","4b83a60597c484d00737793c9d1e20749c33d1394631936e64d7dcd8530ecde9","359169a64f9c96ceed911524de6d7935fe237a0309f08d7968d6105d6218494f"]

Anchored

2026-08-28

Public log entry

search.sigstore.dev, log index 2621233673 · entry 108e9186e8c5677aab9d…

Expected log hash

8f69f81c385ed6162582e2743ec87609f0e5a311201997ab1f656c8ded6f904e 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":"v1787884205203","kind":"published-quote","locale":"en","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 (3e5b84dbb37c…), 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.