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.

“twice now in the last few months I have been logged out”

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 3668908157

Proof data

Record hash (SHA-256)

04df70d41ad45d28f7c0cca6544454297449d44703cba8512b533b361aad0c3a

Signature (Ed25519, base64)

x+3tYnZTU7W+mJxgW+NvEox8gEv1Gj+9HJZGfX59lch9qX75Oodh8GxUCViu/TBg4GGLNo6lPDHgBCnkOcGSBg==

Merkle root

05cfc62de4d0c54d5988c234e4de0ad83bfc41ea25849dd9d979eded6f322593

Merkle path

["04e2687e60056df1229bbdb2a1d2eb1f2840a2de71af8b27653e337d7928de42","699e1d065f3e2ffa97a8d1d468e2975a28bb0343aa33b6f7613225f5f893e751","9b6fa9cd1348993d9dbc9742403afd4daad34674edc311d0a15c46c2f604eb5f","90b0779ad7e5b3853ddb39a9baa7931738ef7c36885a1fd9a2491a6c828ad960","64f4f4e11565d4098762175ee8b734ba13d0e707a1a9d84cd2ea8085a8917afc","f41fca7f0dd92ffc88c55d96ceef6b4eb9b234eae68e60a1f2ef33e72ec98d54","37f5065ac6b2e5b1a9e63ce61c2e4609e606bbe301c855b83843ade2d4f3df95","815ac889db88c158a52bf70737f5ac0e5914f9c4f65d6bb14c916c5501f936be","1b0c2921b8c065e75d9ba281faa0f344e93a7dc3e54df18e0ee981c0021ee675","24ca0b75807d76aba4d46e3d5a18cc94e8df1204d6607c0a2dd3c26c9695b31a","065729d96395e304fddfe27eeff74b8f1f0d5044a256599a2f899b5336b6cbde","c10e7a497069a8ad0d43c03574ca1525bf4e3c77b72778d80149d53e277da637","63be509b3dc15b74d2801a17187772630297b93244215543f157cb4be936b8ef"]

Anchored

2026-11-03

Public log entry

search.sigstore.dev, log index 3668908157 · entry 108e9186e8c5677af58f…

Expected log hash

554a3bd1bf640e4c4cee904a7897bcc74cb572b6d2b741111b4ee09cd6a9dd1c 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":"v1793707394647","kind":"published-quote","locale":"en","page":"brand:proton","quote":"twice now in the last few months I have been logged out","rating":2,"review_date":"2026-07-20","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=ch.protonmail.android","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 (05cfc62de4d0…), 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.