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'équipe Proton est proactive et à l'écoute des utilisateurs.”

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 2543547848

Proof data

Record hash (SHA-256)

21b5ec5bdc488c25c2ce5b9843456d15402b419fd7adc846bb1e20fb8b51e4c3

Signature (Ed25519, base64)

Vt64mgH4mCdWOp7Z6B5cPDZbU9lDJ4ZiK/R3aKjsMcNk5mTfJS2XV853gj/7mEGi0B5kZBe9RL2DuArjXpNiCg==

Merkle root

aacc11945f125ee3fcdef86ba030016c440bcc608f4e51f0ffffdb4cdc5e9321

Merkle path

["21b0941d6b66c55e2a84bf2c30bc0c13a2ecef634fd8a825a2654314f13e4b4e","faa3c16c006483ceb8d5871c3126db2132c93fd606a5259e2e7a4aa2e6b44230","5ac880f68545eda3f00941f71489762dd27a31b3b4cc6a7f72d699dcdae3dc66","0741cc7cd7bb13db9ade8ce1c484ecb01e36ad757fb5962e72a75c5add5690e6","ed8825df5af08aa61f837656b0b960c47854e56d48bd04c7307c920e8408b71a","6296f641fe4d7f611ff1a7c45e0dec23326af5a6c060b0c98db319c3ebe3ab28","63d132bfcc8ac3d610ace544624a1e3f8480b065361b9baf1c014e703cf80b2a","061bb8abe5b50320552c59bdaef58bf82ee5731b2003244e94cae0cfee67ddf8","6ab90d969615a84c123812f466af3c7d5b2eeb92175f25fc25c23abc1a3d9818","e38aa428f0405a2e95f8372ea7886cecb538761f92581d6d7d7d59a70cd0d04a","0298a26818a13ea3025566ab2db6a034faf816e34b7a1e19a16f7e3fcbd87002","7b8ded1b49351694655c52a46b67cd12e02f2a4c9ca9c29916bfa197957ebfc1","24192d1fe3fa8596b225aa5d8055e7e92d26709ec190f1226b913a3e227f64c3","5366af6eb1ce50b0f459da15c1d7eb12649d0477ecd930804e506d3f2ff66aa2","2309962142b16600f7fc4d57273f3042f382acb91be89aac7f00112f61b58f1d"]

Anchored

2026-08-21

Public log entry

search.sigstore.dev, log index 2543547848 · entry 108e9186e8c5677a921a…

Expected log hash

bb93f13ee7a4a636e28586b842e19662b148eb18166a89b3ae7d189bb8e81689 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":"v1787286345433","kind":"published-quote","locale":"fr","page":"product:proton/proton-calendar/fr","quote":"L'équipe Proton est proactive et à l'écoute des utilisateurs.","rating":4,"review_date":"2026-08-04","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=me.proton.android.calendar","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 (aacc11945f12…), 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.