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.

“It has all the features required to edit a pdf.”

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 2682182715

Proof data

Record hash (SHA-256)

0b9be683631dd7cad09fb2ff2fcbe48bb0705dd8988afb9130a834493ffddefc

Signature (Ed25519, base64)

Ud0x35EkDlhqzr8vmvM04hE2xTep4gEDKLm4Gvk/GLZCQBKXtSrhs2ElmESjkaZwqYqf3JMgSg1auAMZ07ChDQ==

Merkle root

a98b50e535ae53279e8516802157b424d2a2bd6800d1c251ba60d9a742aeac5c

Merkle path

["0b9b2a708e692ea1ac1ea81428c50a86c3b9852b76c5494eb4c562c7f166992d","b8c406d1c9987574111cb28cad8771acab2aadc35405bdae19d8507f7d373a45","934a44ea7a0beb1954675d547763cadbcd3d3c255919652ce311cb0d6c05d13d","5de9be8d162aa845caa44f75f014c1efac6ad075cf9ab41066edc9fea745270d","19384b84ccc877ad6ad03f4c786070b574c633a403e15cabcfa54def1f741662","4c914498d2b2819e69952d548a195f084f8ce340834e86356cb21bd592f59c64","8d326aa6f9d99a0842d88420c90eaa480a383b18863f3f0e2db649fcc2b27bb9","a85ab09d10448be8e19a1c7981eecb693a5f9703b3a0eca8aa6e3e778903b55e","c801416729c72e85b26db6f28911ceead69def779078a6f0be33bd17a051059f","76839e2b62b796599556d6d48aa598ad23a536528c1fd56de560f1b532abdac6","91efaae603a3026e393a5ecfea4bd5ac72c1cc2480e9db8f3e902ebc81100b99","20524de8ff4267e2b0776624f09fe5480f9fe33a5239ddc15c15fd75e63758fd","4ee196375d66e09aaa8a05a79329d68c3a50100c830835060402aa8d235d95c6","71a4426d4276c0c224a382ee3cdc207a0a9d5ddfd42ee86b341203278911461f","86fbf391c95a64b4edce12edb659c77256c72926a279d6981a94152c2bc26607"]

Anchored

2026-09-02

Public log entry

search.sigstore.dev, log index 2682182715 · entry 108e9186e8c5677a8f73…

Expected log hash

50527829b2727ec3ff54bbc04509435e1aad57a1b8911c437a05134629a261f1 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":"v1788314008672","kind":"published-quote","locale":"en","page":"product:smallpdf/edit-pdf/en","quote":"It has all the features required to edit a pdf.","rating":5,"review_date":"2026-07-31","source":"Trustpilot","source_url":"https://www.trustpilot.com/reviews/6a6ce14e4538a5c7c27813c3","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 (a98b50e535ae…), 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.