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.

“Meine erste Anlaufstelle für alles rund um 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 3163461995

Proof data

Record hash (SHA-256)

034719be49a2c3d2ef8167539b1602ef6aa3f0f03cc467af396b8ddcd3408b6b

Signature (Ed25519, base64)

uxynUKIvv4uo8YemI0e5KweGExS34WoNI/BBIxSZOwOm5y68x+kjKISk2ssKmDTZpmMinylCpedIwETxGXyYDQ==

Merkle root

f2dea3193623a59d18b4d230cf1484689c024b05d34648a4bedfef78c47360d2

Merkle path

["03453323ce8b238f811283c951a4783255e1a4aaf6dc8474183b1e7fc7418203","b44d7814b890d12d95c69fe73a48129ca6f0f9ad1fbccda50e1a4ee403ed9e49","c22ee5be3f3d1613d9e37506b52d68a9779eae9b97f2cc6a697b75a0658a713d","686d38d1cec8d859b7887e7f1ee7112bb7d42734455139dbb2d998594a10ff19","1a867e570dd7054f4fde310b7752f9ef4e42291a09f504ab7eaa0f2e1c7c2b40","74b177f3ce662e5cbcbf4ca0020acdfd5351cce7cfbc9caa764014a94c9d1022","c70e7ed90fec8f87f1383adb55524c12500f0320c8bd287232d7fa5fe52d9233","cc2eac583d1733130b7abba7ac14582665d29d1594bed1482bf6d4e814e55c53","4bf1f53c81d5ae69a6549115b1b99c26071b7d20b488d00254b26bca7ba802af","339d6bc18dae6a179315d72a6e3b89537448bb1c3d755c52997f711de0e76b59","a784e4c17c7f10f199fd326ebef48c726097111074dd9b5cfa4778f2f23d2e21","5158ec91e504c8c30795d08c4d021440e70160b6a0deb587c5682e7249258bff","665774a1192b73721b453ccc4135f39652e90d0c548e0465aa1a009bf210f3d7","c3040d35b4a41a3d91fd7f6d8e1e6868620c896bd0ae8d09b1351d70693bef08","658fda4333b0a975ae51c0ef52c37c157029d897878579fb5ff3ac48198b1bf3"]

Anchored

2026-10-09

Public log entry

search.sigstore.dev, log index 3163461995 · entry 108e9186e8c5677acea0…

Expected log hash

1e385e1035f15f3dbe860bb8f3e4e850b8c2ce2b31edb58c97be626995a4adf2 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":"v1791544610158","kind":"published-quote","locale":"de","page":"brand:smallpdf","quote":"Meine erste Anlaufstelle für alles rund um PDFs.","rating":5,"review_date":"2026-08-08","source":"Trustpilot","source_url":"https://www.trustpilot.com/reviews/6a7700eca710361711f4a57e","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 (f2dea3193623…), 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.