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.

“rapide et efficace”

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 2542751096

Proof data

Record hash (SHA-256)

ffb1860f7d6a5e9a0d21e9655c0023723dcf04b2b96cc44b5b51d7b1a56ef851

Signature (Ed25519, base64)

IBSFvR+hUchAus1RAjlCXDNlJIrzM65kBTeaDUBFbzEnltDIX1NI2GhzbIPGMBk8UBCDMeGZE+cSuCrpU4hTCQ==

Merkle root

cc9af896bdf0beb88857e1dcc841c404ccd4c59cbcb6932f17077fc8aa87fc23

Merkle path

["ffb1f19e5d937f6add0e750dff4f90339c7985f14553fe108bd9e74c2329593c","75ef6a7145be8b9e3a4d24eb1c5485ca20310b68ecbabfe3b276c63e2fc9c692","47b6ce382a62ccfd449268ffe6a10e28be4e68f1881b046f5d9e4f49ecafe60c","d3b827a8f85cd9eded8b2f3fc1d14bac9cf7d8d2ec7f7a8811de1cf78a8e7af7","e2680fd0f9659877c96b09f1b11be35393aa5e46bee20f53923d280fa590daa3","f7894112e7b9b9c2d41ecde4bb48de020b3bf4846b0266af99d7dc43dc41c7da","1f5210bdd1e517d57642cfddb2f780b76a0d19d0ce02934ec076a811f2017c2a","a6fff441991fb470f51ad284dfcdd6bb08de87f7d6584f0ce65cc33b944db358","ba41dcf39a586f406b2b9071c46f0329b6865cc4a7a9524a1b3ed9a206c7622e","b26986dbc8cba59e21471817e3e242dd52d9af9612e5aa7164285661515d8094","061d6f557e045828e58e062e2990b1f7ebc6103db2774df447dccd9f77833f8c"]

Anchored

2026-08-21

Public log entry

search.sigstore.dev, log index 2542751096 · entry 108e9186e8c5677aaab3…

Expected log hash

8251ea19feed4cbe325f48ba93f0e47294878633f5d43178e4a3a023547e795b 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":"v1787281943761","kind":"published-quote","locale":"fr","page":"brand:xodo","quote":"rapide et efficace","rating":5,"review_date":"2026-07-29","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 (cc9af896bdf0…), 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.