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.

“Let me fill a form and not show to the world that I used Xodo.”

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 3239939960

Proof data

Record hash (SHA-256)

24b06503b45049e0e78675950b0edcad863dc94171df19597e4997e4ea17fca4

Signature (Ed25519, base64)

AnTcg0nfU876r71mPgsQiyxvMVHOFf1ZSH211sXaExncW4nHs4lHb4sV1j1elBlDXU3DXjk56b19PRnwSDu5CQ==

Merkle root

954962254ff2eae9503796c02bd08deefa3a5722e4ac0b3981007e2b9ddd84c7

Merkle path

["24b1bd8b5c4b306f7c04c5368ae54ee34236dfda1d4cead6000062f2907d1e9c","1bd148f198b4142978b496231d11b2145afd3057dd3beeaea8e79c6e28d79487","13f11ca15077e6f44fa6bdf71e9027febceb5aba7fe3578d1dfe83f990577422","6e83d9ae4642834b94446300982fd1a83f94bf08af8bb0420fb59dcd37217ede","3ff7e5decae42529d79e646fdb9ce789c0eae52d5f6dd6fd63dea2f07c45f5e8","dc389e3b87373f26bd6ba310a4536d4a87d10bc3ba997458649f60184e4f2e86","177608834e676e8c35b4d3402ca16ea25c3d836b873693da345de4af39612ee4","04651c9870ebe6231df0664895fb14c3514138affdec27b94aa500bc5ab32f08","d795207af4c3bf13bac35caefe95998cde4ddad37c85550cdf9cc165b709f0f8","59de50fe3959bbe8e6a1ddd7cd952499aa6c91fb37c542a74836cb5f9755f3e8","a4dd75e23af0f1258e45b84db6627eea99f30a1657c6dbfb9ab7e1aeb6c7d199","fde62d346ca93fe6ab586e87195f181c2c9b2ffa2c14b8bfe557af9f131263eb","07b2ba787804bc9fbb84c73bed76b7f65ff1b8c1694261a8264cf5f3209f315a","e7bbbee54f729cc449b73bfdd383c96b7b180e618c270037b5697f1fcc75f254"]

Anchored

2026-10-13

Public log entry

search.sigstore.dev, log index 3239939960 · entry 108e9186e8c5677a0082…

Expected log hash

28fd9464b857a07e61931e67235e692cb8af33d7541a60ca163756a54a64e9c2 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":"v1791859824762","kind":"published-quote","locale":"de","page":"brand:xodo","quote":"Let me fill a form and not show to the world that I used Xodo.","rating":1,"review_date":"2026-07-31","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.xodo.pdf.reader","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 (954962254ff2…), 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.