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.

“Hervorragende App”
Google Play · 5/5 · 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 2671651968

Proof data

Record hash (SHA-256): 0ac5064fef7468005535c9d2180587f0af230c6418cdff9435dc77742c489323
Signature (Ed25519, base64): 60ZhZcY5p3XlZrf+CWrmJIvPR9gQDxXY+ylw3bG0Qy93edqa0xZRCpsBMwpTYY2dYXZn5YSYUjPX+T+uxefRBw==
Merkle root: ce3d6938e86e6857be7a8efbc85155c1c21346e72fe16d50aed37ed5b5eaf89d
Merkle path: ["0ac4d978e4bd3873ffdcc79cc279ca7f651a40c27288c04c9b54a7a127429d0f","e474af917d6a369f188189f51cf1f71d7a8ba9a0d8d024b4989c3436a86e4e7f","808717b4e6540fe72c39c85402201564a5be7505cc254aedee2840022d03fef8","2b6e8ba462b261c8c6bf2e68fdd5a9c45dada265dfc5bff3ea8c6331be5e0f77","173e54fc5dadce271deffb2f4f77d0c7e90b99add43af5eff91fc77845f3678a","0b0b826734475b8f71921a67494121f7651dd29012114e63d79ff0009cf4c28d","003c684b34697cc656e8cf2ee71654171485333afb7a91336aee2366eb7656d8","74cbe5fce8967d06950230a10220845bc6b0d481b09dde6e019c4da0f74a4510","e6f2c602883fdcad454e2ae1ca09cbaf51981b8a9f8006b1981aede38dd7ff7f","060877f102affd06c08956f3b40248d0bae6c1240b784faf9e9dc4d8aeacf025","5fb2bf4a4a761a2463de28e7eaa18c716abe5215f4225ceaf37f4766f8cec9ef","655ccc7fe9b7bd47a97ec699b9f805ab92dd2257e5247632c4f4dde68cfc6c86","b30fa96b054eb8908168690ff8b151669e100c89959f7a8fe4c48ca457806f71","7c049e8780522490a97cb683a0735593208d22b55a66f49923a0a94c3b56e5c8","6c9e445e142590592ffd87f282aff1887c35a7581e681839c186aefd59fc6d6d"]
Anchored: 2026-09-01
Public log entry: search.sigstore.dev, log index 2671651968 · entry 108e9186e8c5677a6125…
Expected log hash: 3568e710eedb6ffaabfb65cd1f12c143a50a3583c899cc455e67b87a19e5bed5 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":"v1788237937782","kind":"published-quote","locale":"de","page":"product:proton/proton-authenticator/de","quote":"Hervorragende App","rating":5,"review_date":"2026-08-12","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=proton.android.authenticator","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 (ce3d6938e86e…), 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.