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.

“L'application est très agréable (web et mobile).”
Google Play · 4/5 · 2026-08-12

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 2544236959

Proof data

Record hash (SHA-256): 2044990e571f802d6aaabd6665f82e2cbbc14247501e9c84f70a5f0b506c0a57
Signature (Ed25519, base64): Y/XUnkqbLvv29uWLXQiG8U+pBk129U1JJW4H4NAKUNiu4Bg88a8r04OdoUMz9gvJYXv4eCfDo/R/MqrxxCOlDg==
Merkle root: cc942239c46f13b1af6cdba0960a24a6cb62e7a7a462aae1e8126c0182dbffc3
Merkle path: ["2043ba8da7d4109ad5c93d9a79ea65fe043ad7b842c2d6944100aaf41f106c50","2b36e7d4e4d8a78a7a771ce7c3c7f11c9c18fcd79d1641f14c8d7eb13a2d7098","dfa69544e30365d0215baf8258faf490744e4df987f9ced1a03aa4c23a8fd79e","ed32cdc7c72237860a50fe7ce0a5e987e368e541ca91516536c1dee119eef7f8","43d4c1720dafbf467d323ca09ca6396e72823c030d85508e17a067b906f9d436","159bda354ee0d872bed009acb2fa4947c335c61624fc6ef13c05766f2b398071","59c5d8922f6a5662362ff41ba3dc6bdaaebc39c811c2e1b7994f7ad679eb8776","c9d0b12c1f4bfdba2de30cf85038823bada8f41ae71fd0b98398768dbcbe9374","f0a029d1c098ea32fa9e723be147e12578781307d8e3c6251a63050350434c42","18744b8a76a9810a9fb45e9959ca270d128c0e15d85f3e816fde03203db627a2","75f34976058ad4b0ba3bb45b83d68fca35da2d87ea094ab34911a8fa0681d4a1","310347130b497aec9f1fe767ae645d58e3fbf130331d63830123e29ebe941783","29959b29034b6ed072468b5b39d5461625f307638700b9d566e817e6eed47120","f022ca67d84103ce2cdb199754ab60e49f2f04e17a257779049ad5591df59737","f25e568e6bd90a5619f6d6d975016290629a8afed06b80200730e4e12fb2d1bc"]
Anchored: 2026-08-21
Public log entry: search.sigstore.dev, log index 2544236959 · entry 108e9186e8c5677a0341…
Expected log hash: c82e13ba2a716d66def44df55ff50c2e9db35da204570a7fd5650a8bc2702db2 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":"v1787290890795","kind":"published-quote","locale":"fr","page":"brand:proton","quote":"L'application est très agréable (web et mobile).","rating":4,"review_date":"2026-08-12","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=me.proton.android.drive","v":1}

Verify in the public log

Open the Rekor entry (pre-filled with this proof's log index).
In the entry, compare spec.data.hash.value with the "Expected log hash" above: it is the SHA-256 of the Merkle root string (cc942239c46f…), which ties this proof's root to the log entry.
Decode spec.signature.publicKey.content from base64: it must equal Citatio's published key at /.well-known/citatio-signing.json.
The entry's integratedTime is the independent timestamp: the root, and with it this quote, existed no later than that moment.
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.