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.

“Sie waren sehr zuvorkommend und haben mir bei meinem Problem geholfen.”
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 2594047033

Proof data

Record hash (SHA-256): 0b321f64c2eea04dc5650c7374022ac7dcd98770fc984911a396c644e51f5aa5
Signature (Ed25519, base64): KjE7ROLxCQxx03fBxjlT6wQMk0Si3aoh+JApFKFRqHQiojc/3tx+Gy1JL7EYtaIjGgxLPLIjQY+tIXZAk/XmDQ==
Merkle root: bdc4b63265a70d38726c98a51a2f6fe0c825529e253e2d0102798be7f72f5677
Merkle path: ["0b31f35f4a66608146189dcdfd85cd52bbf29cfc7ad0ccd00b00ad0a4f7c1e72","6106e685c07b6da17d0cda6b27c8e3d2a7643fbb675d02a003f2b21bbe2e0846","b5cfe63d27df818a1d0070a4009b2bc8673c46b52d6025e7acd8e593b1cf6616","59fd20f4969fac430300da09fee2aeadef8d9d3aff02fcd7ad4ef6943ca28181","4443eb6c5abbf92f08e2cc494b87a8dcd2bc6df75d1918b3d45b6e8ce8770aef","b63fa9d6f514e8f2e3aac8599566c10738d19928c25015be25f46c856a11e22d","8f523da7b6d4a27106a286d63d73164f2a625145c87f481800286db88aeacaad","0ff1bacdced9661d263552cac4b68822b1fc6a73cd94b85eae37f268f95df4c8","32eb67a84af1a0afc0add487492afb9be1c6388599fd6053803372008f54c0fc","7e61a288f9c1fa3c765990a71ce9d2f4e758b4a645a674d9e9708e01931e6246","72d4c92c91ed4c6c812d6b80e88ac6a2774c8fe7fe59150f5f5bd8e7c727b6aa","aebde396b6326cd6ef4fe2b336efcca55f425b58989be7e1932fe8cca3b8e79c","feb0254887eb1282778baf7c368a0b78d207e266f585e8fa28d1d23f1aa1f260","96c364e4fa4c79e3af24942939468d2bc4e25e66deb751a5352efb996b7fef36","c0ca68b26f34d8d7dffa9679f414d4de82a713164fc00678d7df4e235b1b6509"]
Anchored: 2026-08-26
Public log entry: search.sigstore.dev, log index 2594047033 · entry 108e9186e8c5677af479…
Expected log hash: 26ef5711a6b9de6fa8d880c18fe60f9d9918e495d6ecb3bfd46317eb69c9ba91 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":"v1787712098188","kind":"published-quote","locale":"de","page":"theme:proton/service/de","quote":"Sie waren sehr zuvorkommend und haben mir bei meinem Problem geholfen.","rating":5,"review_date":"2026-08-12","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=ch.protonvpn.android","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 (bdc4b63265a7…), 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.