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 une très bonne application”

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 2543266411

Proof data

Record hash (SHA-256)

fd90acd6172d9c1772174abcff48f5921c1268862e2c260a0828604d87d980c0

Signature (Ed25519, base64)

IdbVRl3IbgK1neRkspIcFu/FSduIzDlgt9f54Uhu94latMCO3djjwAbHKikIWJMepo7N5bYArFjx3nfj8PlwDg==

Merkle root

8ffad6e97d1457610bec7a891f189d1ba7dd7a92ca672c69ff1ce3283acb4b5c

Merkle path

["fd8ffcd3945e5ba69412f757d2d8eb553be7debe5d98864deea4a89a30110690","ba8e5d28f5c1f8a8ac6b5a76dd0745850315d374a40e7397b321191d0e245645","aace6e0c7ceda145951f16db17a7d1192cbe51dce47cf181725bcfb67d132bd8","9af353b950c9e9926b03fb098f5003e4bed99e832dda1f44c0c7075e969e7170","29e2f66913c5f890b11f910b75959113e9f2581da8f58037a9aeac66e6417770","f1551e704d213c9940850ecdfdca5b4981bf759e24fd86ce2439625e3b67acfe","8762726d0d2f7026b5c963177565b4000db8d9c050f0aa9c1e017cb3bbb31dcc","2d7a489e3cb6a854026ba52bf4fc5234329425b19ea2b1c32bd142256b8f4fef","f69dba89345c085265d7f0bfdb1634310008a13aa262a7b8ff400871bdc85851","df08cddd70f2448ba30e29d235ea68104f5c2f6976a4325a0ded101da9a6bcba","55cc2043e83be6a2b4799cb70c4f258ae16af88ec89df776812174e82dbb32df","7c94ff27d324cfeabd6b92fbe8fbca077bdf14d29975169a3a05e610d1bed13b"]

Anchored

2026-08-21

Public log entry

search.sigstore.dev, log index 2543266411 · entry 108e9186e8c5677a241f…

Expected log hash

443ef8f29d5167ebb4c56a46778facd07b7651afa8db2d089c14a991ce0d04db 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":"v1787284817344","kind":"published-quote","locale":"fr","page":"brand:canva","quote":"c'est une très bonne application","rating":5,"review_date":"2026-08-19","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 (8ffad6e97d14…), 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.