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.

“Großartige Benutzeroberfläche.”

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 2582604655

Proof data

Record hash (SHA-256)

0956e0a34370c6210b4a5fc5488f1127322d4d7c85bcd2194f3259e561486f14

Signature (Ed25519, base64)

acl8a2kq+LtZYvAi5nYZk3h2baXz82/sbmjHNdIFOha6TT/msSqzQ9TFqUyop9P0sHsZzIleW5cihBxVX2zRAA==

Merkle root

ce02f748e6331cd02eca8f57641bb910cfa3ac6a0583f19c214186c96cd0e8be

Merkle path

["095cbaa591ac92cf3cd50b591151f34e924fb8aa928d31306bd6c56cd543191d","fe7308bfeb503196c0e596dd4945c6bccca2dd035639621caca3a7bcaa5ac4a3","6f5f23809cd9687f0fc590fbefbb8f23eefffce4d8b986fd1e0c983c80ff4f48","b3cbb066cb2e181133661e481606aa292cdb52f04d198ef63224ffbfa260b395","852b5233c835386e9696a4c29e38aa6c36a6bfbdabdff6f2e81bba139c175b2f","2e9820119bbb5675e71b64080d8d3d21133c205bfea79633fd3bda8a0b25b391","2506ec77bb23518d3d86037a55c01c52fca32e05f06d29032ed688ba46111089","f3045b89a4aa1938c96b1f9a9b4ac6dbbe734b3004a30cc117e28bc41fb2da2f","a4997485762e4801101ba7484bc70cade04c185e5f9fd79471d0f49aaeca6c8d","d784c21a4b883a46d0ec7c64468769564ab595f799ba490fb96c07f41f71f9da","f5a4c01d103e1bde4ae07a70c2112960794c6b1aff9a0a93a4a05954e1fd125f","b32c84383744c57b015abb43fa1400023699589bbec65b98d5d9a1020542c84c","2ca5fec314a169184d28bce72e10be4d0dc96e78ea6b0fcf500eb6558685fbf8","1bc99d2925512f6c847da60b09ad8a40a192f29b50aac2ed7ad1b460e9e23fc9","8475fb82080060bd6fa491c94e8e1c5001264fbf6fc66e6998631ee565101bbb"]

Anchored

2026-08-25

Public log entry

search.sigstore.dev, log index 2582604655 · entry 108e9186e8c5677ad979…

Expected log hash

3437b01b95be42f034b7198b6d5e9c0aa9b5bd388493d56323aa647d6d8ff38c 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":"v1787626024249","kind":"published-quote","locale":"de","page":"product:smallpdf/smallpdf-mobile-app/de","quote":"Großartige Benutzeroberfläche.","rating":5,"review_date":"2026-06-29","source":"Trustpilot","source_url":"https://www.trustpilot.com/reviews/6a42639f62dd68bfafe64a9e","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 (ce02f748e633…), 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.