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.

“c'est très utile, notamment pour les travaux de groupes”

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)

d4c322240a559428bc8efc66be53df7a0c5526952174136c53c6c4a1aaa635f9

Signature (Ed25519, base64)

lqUDY6+9HSmOHBW612saDalka1JUFUiJk56JlKAhyvV5BC3JGp0cC73Mga5QAIoejmrw8KVaYo2eDEQHOyybCQ==

Merkle root

cc9af896bdf0beb88857e1dcc841c404ccd4c59cbcb6932f17077fc8aa87fc23

Merkle path

["d4c3f1b2d173918e9dfbab40d2c16d83034f0447464feccf80a03b7c041683f1","d95f8e38b1aabbc4f43327bb61c79973d4f84920be55141ed1ea305a1650622d","c7e1a40915fb5c06f73f949578267b9a63dae88b5f68fda45e309548f215a6b8","8597f73cfad9f15efa7af32739d8d134d43a2daedd645e2d7a9cff13c33c8f95","9b9ee61c38289a49638273f092c70def395e887dd3246c48dc1d9a786add66de","c226402007c7959838f1d84c37ecbf9a3a235d91755f4692476d8b9f111f1327","f58d253f228068de59112387b630d53a227e477abf7fc983e32977f8affb298e","200679e2415ccb5ad4bf653759eabae1719ab89af7ba4cf01d51b4a529ac64ca","9bfa6a177f014c2057f36d08e734e272e03af8a6bddbe8a168aca1a1a887421a","339acadef14b513810d5eea9a1ffac48446eae4c67e5cdf1a842df10817c0d24","f80d0c5ab8347c7b632acf0adfeecbf0642beb93c4860356a4d8d6b3c50e4cb4","e0221a8125d409d980c3ca2e8b0ac0fffada91f6a184545bce901df7a1b32ec9","b7e7321936ec01ddf1a27939d7f763a96d242072647f162bf95538c0d78946b8","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":"theme:canva/fit/fr","quote":"c'est très utile, notamment pour les travaux de groupes","rating":3,"review_date":"2026-07-24","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.canva.editor","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.