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.

“kein Abo abschließen”

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 2670833107

Proof data

Record hash (SHA-256)

14fe77d211e9536a776ad60c7eeb9ac0aa172836d5beb321736654b237ec11f8

Signature (Ed25519, base64)

5v9q8GS1fhH6qQgkAojmi5UNJQfzRuSdSU7qv7/p0W9pFROSOPkzoRE/Az5D2lb1/UU/zHXP/A4LWbrO69VTCw==

Merkle root

37bab7ab6bae92a907497e5a4ac9fef6a8cc674cc365cd962e5b33be029217d4

Merkle path

["14fe92c4d8bc3da4fa98e913afefa5b44958550fe9cefea63f572cd214682256","9d5f2245de702d96357635d1db6a7fe352600424f69b3f6096f7fc105e112a66","d9b00c321b920220a9a27524752f372b7db94d7c34b9a266049199fc7c56853d","271fd70ef30bf0d7515b9333be11c73ac3177eac86ddb7c9ab840aa8ee37313f","903dd9db59b8dd9c60b4b325cb463ef5f6226c643547fabc7b29da697d44c3d1","17006101f68ff2ed0306b26f4469effe9dd22683a1aabb7e9c3db5d922326de2","6a776e326382f1f6e1d9969e09bfd7c9b61f8e195241091007f11e05395174ac","6de04faa33c757eaaf3621aecf486bdfaedf0b32a6bc2dbfbbe77cebe7a92152","ec069dac8b5e6d9b2cc04e056b6e6c424ac7e72bb445c66ebee6c462b20c2c75","0dcb74b39494bdaa39aac67f6db03d8aa875ca1478b697240b285f0dd9dca506","67c356fdbf02166d0cf719d232be991a002513cd400dd9afd4f21ce25899b720","c9b120504e13ebf6addbc5122cbf40e7c38191056b31c8b51d2732241f152229","ec831a88cfac83431928609cb4878ed5619e6065160f677d7645e0479a63a3aa","1c8a8edcf77caa5fc3af0401d1e3fed2c8693428493c7127f3e51eef4f9cecba","61a69baf0202b9bc9628f4c2534169a082ad6e9020746ee3a84c82ac414b68ee"]

Anchored

2026-09-01

Public log entry

search.sigstore.dev, log index 2670833107 · entry 108e9186e8c5677a11f0…

Expected log hash

93b6693570baaa3e2327aa4b03aa01159ba10923124d4cddbdc139f813f3f422 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":"v1788230822517","kind":"published-quote","locale":"de","page":"brand:proton","quote":"kein Abo abschließen","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

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 (37bab7ab6bae…), 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.