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.

“Nutzen Sie einfach ein Gastkonto, so wie es beim Telefon funktioniert.”

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 2582656976

Proof data

Record hash (SHA-256)

173efedc5cc629d626071e54e9290a3f3c278837c7cb020ec2dce94632b797c5

Signature (Ed25519, base64)

RVDkIVH2n/dSCbcu2t8HMfqfXeilngTVZ0oVPjCNuZ1GcRM5IpMAQpnmDuHC94WKHdy5nD/9ncagaDo5I7B6CQ==

Merkle root

a4c18639252762e8592e52699d716003f75d0f7e56e7fa6339035d798c5faa4c

Merkle path

["17452f552e421c3ccd0db80a1d7eb4aa1f617ba1245b2cffb4aef22b4894a114","14d218650e6d2cf105b75cd50c0f2f6205d81c6f7107d25ed52e9dbc2066184b","89f0a7cf5b934c00298cfee0bd937f793736e3bce2684483e4ae0d13f0bfab8c","f083dcfb77d094b5a4718f9cfa4ef7e739f81055975c589dbbcc4a6a94937f84","5d7a173f61dc4f56f8792044351e2613da9466fbb85a7152f0cdd75cd189f40d","10c3f69fc995fb14ee5a33124ab9461c27cac045d80e68edb1e27f0951e2793b","f1e2afd011f686a1f8e4602c40ba0aed815590e62281fd5499b502f639d55fa3","fe736c4effce8e5da058e25196696bc8866e5ebd6da72cd14159b57ff215667e","f3d194b577b4cfb9cc0555a96250e216ad4117a59a2895e15c44aecc8a016391","f6a26c9e55f355827c048abce34d9ea34bd371afd772419c78897d3adb58e1a6","1855662df304ea5a562ea61cd460f7328f1bf318b05260b2c2c57f61e07dcf25","ea39482b5a7e0d45d9fb3ae639170732241133dd31b00e5a83bcb03533f8d238","a54fc815eb1b1840822e4a876caf80ed05f30705f1d63949cf36ecaf8a968901","991436b9578e675394ec672133d1c374d83d4a1e2c908b8f139d4d517c2af4b3","38817b8565345ec373a63f174b7c8fd25668576b72ed4022ed922334dd0dbde5"]

Anchored

2026-08-25

Public log entry

search.sigstore.dev, log index 2582656976 · entry 108e9186e8c5677a65b0…

Expected log hash

918fc3881cd55f75123813e7996add0afe4b7e68bfa1a75328681c18d541d464 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":"v1787629605596","kind":"published-quote","locale":"de","page":"subtheme:proton/ordering/einrichtung-konfiguration/de","quote":"Nutzen Sie einfach ein Gastkonto, so wie es beim Telefon funktioniert.","rating":1,"review_date":"2026-07-23","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=ch.protonvpn.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 (a4c186392527…), 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.