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 eine großartige Anwendung, sehr nützlich.”

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 2515282333

Proof data

Record hash (SHA-256)

1451b8659faee1c8c81bce49a5b743cfdb91cb7a79ee6461759ada0039580234

Signature (Ed25519, base64)

V0ObvmN186VE1edlaXGqgUkhR+LA9janyy/GdR/LsawnHgDu0jbW5sGndtEp5VaONkUgBA2577At2LyQrhfQDg==

Merkle root

ccae92ceb3dcfba104788424188fa34a8cb1410075ff6c1a21fa513e89f0c4fe

Merkle path

["144c2eadc3827c80c80d0049f79240661ef9309298999bc191a941fe5e0c2fb6","e729ab00eddbcdc461439f60a869555e2c7f97ab11fa286358247deb7221fccb","1a1e47f0123599ffd2a4b9b61f5a2c8a544f96df25f8efdcc628a161c2e463ad","ad49de45d1e8ce8caa4976e8e441712690eaedd7363c34ef913e48ff8c4b1cfe","d01c7ac080d23f88de8ee60be5baeadde80501ae3718eb36158b8a8784f86348","1cb7fc38dc5039be72354b4b8fe9c4cad0fa5af59b1a0fab73025e3cc9e5aa78","cefc77e1c5b361f15d783daaf5892d22458e6734d70715cb99ebcbb7fa81e838","6d7c8f1d3aec0e0c6eb2fd1f19ff6c45584844820a413dd496b20885fbbd1550","0a8041d952b73d590ea4180d3fdaba215d6a6f1bb47e10e305a1bc11478fb66b","d7d85489c741437c0bff957deb5501fbd1f551c104bb1d9d8ae5856a8c257a8f","36464d71541e288af451849c85a663e8a009d0aa7dd835e2fc17f697f277633c","94bdad4d5bf7cdcb097f825dc6c437d80f4848c297dde14ff164b3194ed492e1","107bacdb07a3118c4b3abff34aca5373871d7239f682906c5310a861fc9920d7","818afa9b60a40d27c2e88a8e5f62585c079335588148aef8eef246906a1d9ee6","f73291c2ca924ce4b3764e4b6ff1da65a701069f04fad47c52c8b693a0ec7e41"]

Anchored

2026-08-19

Public log entry

search.sigstore.dev, log index 2515282333 · entry 108e9186e8c5677a6652…

Expected log hash

af455e73500113c158c8df9793eab703ff863c9c98fe38560752c9a1772810a8 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":"v1787139531268","kind":"published-quote","locale":"de","page":"product:smallpdf/ai-question-generator/de","quote":"Es ist eine großartige Anwendung, sehr nützlich.","rating":5,"review_date":"2026-06-16","source":"Trustpilot","source_url":"https://www.trustpilot.com/reviews/6a30ab808921b47cddccca28","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 (ccae92ceb3dc…), 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.