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.

“Très bonne application de lecture de 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 2514297706

Proof data

Record hash (SHA-256)

ff04ab69cbfedaad7e7c4b0457a8062fda65042d354fef33d5ae98dae9a5d17b

Signature (Ed25519, base64)

w4k+gPYun336MUVEBGLuh0K6Y3ENjV6uLHOPnspsDCSrfrNf94DNf9/6xAiU7sqPbt3GKlZ9YYjbkQRTgQ2nDw==

Merkle root

1dd7fec10002d9304505761bfad9c0f048c94d1d6a0775b6fc4291f712d4106b

Merkle path

["ff098264d5c07245748e11fe243dbbb150a641b6c7fdb89470784ea79370ada7","62410989d80540f3b5fb32ad73fe6358cae3088476bfc7f0f248795b22b2e0b3","003c4bc1bc93221352b49a3c745e5eb0f9c6b0142726142a260eeb76a95e8c58","a8da4ab805ca9c013c69c7c6f95f324257dd461848a85dba258fd52492f84fd3","04c9d85bd39792faa8d62dacae3be0021504031c18af261a259cc59f665f1424","cb27e5a2980d8ac38c54b7bdc75ef050bc7ca074b7029256566a95c19ab7b796","d66fbcb09b9c34d6ecd8a63a163fe50d9ef9398bf65f6af3fe557ff2ca7986e0","2cbd1b7ccbb44483233824759e3b3f7b567652231f4cecfff6de1616ea2f12f4","3e66ab7928581eecba35a38f06edd179764ee3492f5bfd3a94cfac1be3988d48","d3656ba3ac8ec19916cdce3763d601b4edd6a030931b6b6eb0239e3dfd6c01ab","1216bd6fa33967f76e24b7966e2693bcf0e5ff565160018cd7bbdb934b307fae","bd07d87bd70febdb2065bd01bc91c4a313429f0836c93e8304bcd2037faed264"]

Anchored

2026-08-19

Public log entry

search.sigstore.dev, log index 2514297706 · entry 108e9186e8c5677ab801…

Expected log hash

861cb9c1424d2f408888a591a8305206c340f8249f4a4581b32f940ce8815405 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":"v1787126020727","kind":"published-quote","locale":"fr","page":"brand:xodo","quote":"Très bonne application de lecture de pdf","rating":5,"review_date":"2026-07-26","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 (1dd7fec10002…), 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.