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.

“difficult beyond reason to add new codes.”

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 2776103867

Proof data

Record hash (SHA-256)

0babe539427202838371af0002e4d3f044f7ae74b3cd43c10c0159efc3104089

Signature (Ed25519, base64)

bFjuOi78RCGFJVjX/lpGAJnRAKIl0HwT/oEChHOzAjRG7XGNuPr6GKV+wNzIQiU7gOyTJy0g/8oWwFbEAA0rCA==

Merkle root

4dc0bd79ba3e9442f7f1feb21f347e2f6fdbc72e99098aa5164776a6202654a8

Merkle path

["0ba306985217d2eaca06a833f624c126f666a20ddb56ad8b734d587c1efa715b","1f3f5e08fc751a15b1bf87f69fd89e6954897f1424cf1d099213e19e67272f2f","1b43b811808bb24e7b39fa81bd30614ae00a293ca5a072dd4374347a227b13c6","b31828c2e818fb19c816360aa7860b8f406ef6710b1e5dbc6029e4cf2bcc4e5c","ae291c11411c3cc02c0e5076835ef4e123bae5bb8460c2b07ee18ee6f6be866b","c56a8c0c581a3229126c80cfac75a09ae771466650bb214c033df33449d2dfdd","773b3bf8e1753c9a06662fdac21fe5eb7c0d8a1c859cd0429110a40de14ace0c","0a773c7f0e31813662e7ef55f65a59f60ee17db0368e46bf9923ab461c00b26d","4f9c02674d1ea3311fe3c3f4d9cd3236a0fa3d77821342a9171a64bd7e4f392d","004e614132cb1b7c9b619d03ff9f55e46b7cb9767c5ae1437449adf32ddcec45","ba894b4be4882cdd4ee89df93fc269c4b5650c2f893ba96b1cfb28c1d9866900","601d3d5f4fba7ccb8e25e8db9adc4fc1a6094821bec2364894f7bf4c640df5de","b64868d5884e6ca103d8fa1886b59a755a471482d82618eec868304914b8e334","72f96e42060ae616ed33b8fd6ac687c1899623eaa8a351026bf33e2e7a041d34","e60c2274998b06992577796b6abe86bec144203fe960878f7951a3ae12c9e532"]

Anchored

2026-09-10

Public log entry

search.sigstore.dev, log index 2776103867 · entry 108e9186e8c5677acd4f…

Expected log hash

2498329b7eaf275d309293dfbac35d05dfb8a55c65956add8448561c05945f28 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":"v1788848066028","kind":"published-quote","locale":"de","page":"product:proton/proton-authenticator/de","quote":"difficult beyond reason to add new codes.","rating":2,"review_date":"2026-07-24","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=proton.android.authenticator","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 (4dc0bd79ba3e…), 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.