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.

“SmallPDF ist seit Jahren ein unverzichtbares Werkzeug für mein Unternehmen.”

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 2685152720

Proof data

Record hash (SHA-256)

0a4ba95ec8b79276f77dbee738760b2078cd82ea5fbcd6d91de88eddf89acda9

Signature (Ed25519, base64)

sRd/HUxD7k6nNh8HbM/Zu9HOnHg7njLZqXmQudbuJ/0F+4IIXOY/FbcXbmr3VOli21OvQiBBA+5MX1HGqwEvCg==

Merkle root

96fbff9333062c6f240ebc674c358d11c91e32417964c7b74e7a085ad09b3148

Merkle path

["0a4852e8f541b8c028ae86bed2b70fcf274d2876df6f5f5c3559b0cf086466db","d730914dff93d28849e2335df666c4e77310a656851e5ea7c208d808098521f9","82a8edcb96d39e37e3cab84e9d7008f3790be1b4f10fe20b0a046accccbbf73e","2e1e011a891760e1e30ad0d9ad894823cd75400f3403c18f3188ef9bacf7bf01","ab17eca2babe166852908ba164295ceddde735000bbf32464fa1525f0cdb3744","9cb04e511e35c8e8fce7515c69b34c665f4d2a60a934fa285afe55b2bdc4f1c2","6e030d61edad275e40a92b040f9023bb362088398478592896d8e46c253ec95e","2a566dff540757671adcc776c3a22fa09ba156c525a4d970eb0e31cda9ad8394","ecb85b6cc4a817ed52e0b7eaedb84db68ff377fcc3f61dd6e2671c2e472fd9bc","ebae1d59b203c7e7be7108a103e45c0dca654653d61aa95015f17e44271ebbf3","cbabb4f88d5d161601f36440a16813353b1cfbd132287ce15dacfb167930dd08","94f788ee88a3a5d0527e939fc2fb4326b3a860536a5801cfffd8d3c9817768c3","79a4550b200fde9b3a943415990b5226f73c8c365540528c8ac5ff0f8d838204","392c4ff19a61c37ccb09c095c4cdb0c4164ec867c437a8e3033cfe3fe2edd46f","60ceee9d6856471604c29353be774f78386c382c47f03b784bbb0ee7fd843f1c"]

Anchored

2026-09-02

Public log entry

search.sigstore.dev, log index 2685152720 · entry 108e9186e8c5677adce2…

Expected log hash

b48044e152c7f9f6bdada08baa42518b66cab68608ac945b90bbbe4a8f1ed0a5 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":"v1788347082424","kind":"published-quote","locale":"de","page":"brand:smallpdf","quote":"SmallPDF ist seit Jahren ein unverzichtbares Werkzeug für mein Unternehmen.","rating":5,"review_date":"2026-08-10","source":"Trustpilot","source_url":"https://www.trustpilot.com/reviews/6a7a25a9cb5fb18cc8ed58ef","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 (96fbff933306…), 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.