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.

“Ich habe Proton kontaktiert, aber bisher keine Antwort erhalten.”

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 2682068569

Proof data

Record hash (SHA-256)

0e477785b30ed8c6fcd0edf99d5906cfc8ec6d088778fc261aa57d730552da6d

Signature (Ed25519, base64)

pZ8uAe96KAAS1TY2SouInnDSRuGTO6hDkj5zuckxIkO5GenNCdJDn71N7+sj3PSC1UGDsdNfvTiGiK1CstrDCw==

Merkle root

58152eafbd1e17c07a57fc51092eabce1ceae3f7d7e40817611cb7b6380c0f72

Merkle path

["0e50fffa244015e45633b9d02ae2c5e7b53f2ec237f927608c010158891a4dcd","480c40d4fe992a0c842554320d1877bfc17d0478e536a10d8b9efddd7d152974","a4730645afef8964cd2ffeb294c8993dc19169ce09ed7b02f3978ee07abe6032","fc60c140ccb7d1cc763aaa819cafa654cf1f5a8ec8e745651d138e58bcbb185f","a958cda38ced889b949bde5d47146fdff796c2ec161e091f1b42fefbf39e5e02","f0156ca2b9722dd7a37f6e114f0f8c0f18b78490430ec291bd0e306d8414c984","0bbaedbe2085e8d7017812a743850bdaf4811b3f8826c0d6fc40253c00b6c636","f4d3b4388cfcb852e291bd40ffa5fd4bd65d87b9e558303603d62727fcfda7c1","9bc6ad51591ae15ac8f11256c65be6b0a4f49e545824455c7bce4811b6427980","e08e49a0cef44d2bcbf8628e6df82017db0a8669a1fcc49df855ed88e86e7bd6","1baa4590b87c2fbdbb1d34b09af401b9de159065e32b1712c4de74f0ac981161","8c13fb05753408efea894d3eaa22fa4f673f39c7b172f7a77e664ce000c21263","bb462c3d38ad21a9cef76adcdb883e387603ce6deb030828cc61aed6c2537cf9","b602feeba516bbe712ba8ff0806ba81f2f58a4affca9619585625802efae22a0","cb20bc482ab55e20ccb32de1de1fec1b4f895ce9b04bd36ade3cca9f53182999"]

Anchored

2026-09-02

Public log entry

search.sigstore.dev, log index 2682068569 · entry 108e9186e8c5677a4c96…

Expected log hash

260c49803fe8c7d22d3480836633b40387adafb10154040fa1604350d604e93d 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":"v1788312710194","kind":"published-quote","locale":"de","page":"subtheme:proton/service/support-reaktionszeit/de","quote":"Ich habe Proton kontaktiert, aber bisher keine Antwort erhalten.","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 (58152eafbd1e…), 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.