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.

“ce logiciel fonctionne très bien”

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 3162173160

Proof data

Record hash (SHA-256)

5a99a56878b62abc42f45b1f8a5f42296ce485df04a921b6d9ce7a777fc260e3

Signature (Ed25519, base64)

0b8dZiUZNXew0Yhmy5cI05t8MogUEHBAEA0a5PALQYsB2a6zikUuwxcOm0EWZv6NoqKOTB8hw7tkyp/lLOBPDg==

Merkle root

47aef0bbc5d347d2f064428fd7eda9e99f7cea2d49004267bc87db0e45c42023

Merkle path

["5a9b6cf90a6a329b5a4a6b962e7088969a71d4d1c50842d0460b658e42d8d051","0de03dfeb27e93430dfdf5a1d50cae8e6c1d3fe6a4b80663c989a49c2aac5e76","c81a1016c9516d653c14a8b122a1c7219fabde7f735f7099c9d9b44517b5099e","02046b966ecc78209a2cbad6c3a87c1b49bb9c3baa99b30ff0049914f64f0e8e","b4611953d0086eab7a159b05cefc14c661fed2858559fb0dd8d5fd8a90e4ad7e","3b7df90875b6631c09ab081d904b55a7b9332efbc29a5bffae257e69973fa940","a914af3d9dd8a7a710522fac5168007ad7257a02837bec1a563e41fab39c83cc","bc0643b386b2d8d0deffe76e346f14456cca6473dcb4e8035125522f062d2004","74ca35548300ba4fddc9a881d45e8b1b4175da71aaa3dcfc938c7e29305be4ea","04b6c24aea93f401862e4268d8e3eacb57d88af9f08f2c7abd98123c22713eb2","5ba22509bdce270ee0434c9b80dd7b39451f89f309e5d27bf74b76d6543bb469","fc59a99ecd8e45f7a4edce8bb3645315ffa61f5b16e71389405bf26368007a16","b965f789d81d31108e28cb7456c86198eef687ef99496f7aa54fa323ddf26edb","0889ae3150c7685b34e529b715a23984c1ad15ae15f158815b083df85c4c26d0","681b858a978b3dea64df3700a937a058d6290a8e519185bef8ee7388d7739dda"]

Anchored

2026-10-09

Public log entry

search.sigstore.dev, log index 3162173160 · entry 108e9186e8c5677aaa5c…

Expected log hash

00d82a97e8d5da8f3bb4a78d598390d6b030eb8338f0e0735ffde6aa5047ae68 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":"v1791539060014","kind":"published-quote","locale":"fr","page":"brand:concordia","quote":"ce logiciel fonctionne très bien","rating":5,"review_date":"2025-06-12","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=ch.concordia.myconcordia","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 (47aef0bbc5d3…), 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.