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 funktioniert immer schnell und erledigt die Arbeit”

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 3241341297

Proof data

Record hash (SHA-256)

039a8818e80fb2425c4f5cb048d67c4d162c376997710d9797b36c1cad0302c7

Signature (Ed25519, base64)

f9UypFUVlhPmemjamivx2kjPM23IisZci7P0WItAEFqFRFnHANkCJWN7EJfev5vco/8DBxOojH0suMIxoN4mAQ==

Merkle root

4900b1080bdcd3b4c9234f01647614e7004e0a1ae01ead44968e31abeab33265

Merkle path

["038f48afb643675654a57e740707deda32b316365add934e76bb29a904c1e0f0","c645b1b63eb11bc9cdee78cb9a10d98c1fbbfa8871e2efd10bd93bb045d179d4","43b8545850bd923c70c023fb615e09b614cd870d1ffdd344afac5a3d8b94c2cd","a1ada29f794e91e7504219733bef7e4545c860cba216d5b2aaede5a46791e747","b6287d09920839b6af5233f8178eab36b7ffa87d0be3a6d0b2118f4296600a44","00b9557b9cc59d7bae1455bfd8d3bd0b4f43c38df9fd2e756b8219374500bd2b","217edf82df30216ae4781f7519388ba0f1b02c91a42840d3c72b2a3e32ba9e9a","a2c0ea7313cfeb0473bfa3ea785e576a6a983b5a356b2d502e4b9285d53885e4","93f38bccfbc35903f8a5db822e7cceaf1c6d39e49c23a2a4efe22d25717b2854","1243a3e70d03030a37c17aad9a1eb5ca4bf79fe7970971d33460f567a94dbc5b","5eea0c065cc9023d7325f7537d5b56f514ab1dc88622b30c5c8dec5113ed99f8","4f4d0831440aadf9cdde8508ea8672cceb008a30da8e04261a55c46ea8a8ea6b","acc667d852c71a0e84a086ab20f7bbad3d8ae083a1e44cd20501ad641f662bdf","0a4842003c61f69c5923b6aafd56426e7fe934e483f7d15b620c07fa61f89152"]

Anchored

2026-10-13

Public log entry

search.sigstore.dev, log index 3241341297 · entry 108e9186e8c5677a0e53…

Expected log hash

39342fbb95f8cce5be4111719e5450984494edcdff99b8bd9a5c0d2303b67943 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":"v1791866192176","kind":"published-quote","locale":"de","page":"brand:smallpdf","quote":"Es funktioniert immer schnell und erledigt die Arbeit","rating":5,"review_date":"2026-08-06","source":"Trustpilot","source_url":"https://www.trustpilot.com/reviews/6a740ad92b3efa492a884824","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 (4900b1080bdc…), 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.