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 2514083622

Proof data

Record hash (SHA-256)

121469081c70d6ce8d7c4fda817b50376bad51035ef98c1322f2e8e657ca2dbf

Signature (Ed25519, base64)

tynJTRXtOP2hq6NYlHIRVXwc7PmjcUJdeRJqxxHd02WNA7WBEidcdnQcCw4/oNDYreZ/4S5wIkn3QgW0DoFtBw==

Merkle root

c35385e3159410853b606ace3c93abcb561dc35874bbfae2272c5b0050f06a48

Merkle path

["1215f93947c54bd0414ea402eeb9e495bdab3a9fdd56f8270f6c261d37e7f0ec","192eb428e9c160b7a3fa77aa70c04cce8d4fb7fbc51fadd5cf01e7206b18a90b","ba630b906099ac8471131dcfbd02f786ac40b298edbb1fd776f310e9b27efcb3","fa2421183f59b64052b2b0b44eedd0a9188fd0434b6c0f16869eeeb4c835d68b","ad2657e91d2cea0ec6fa187bec775f7264420eac4c308e775349d3eb791e2bd7","fc026d6b7aaf3db5219776b2018275fd2e529543585a7f0788bd12e3f4469cfb","11bd166a483b7dedde964d4f1e088d61424f64329de59e436019390a06d84708","a86a4456384c89fedc15b1b3bec7ecbe1373fec94ef9cc80299cd0953824738c","b2ab9e0a9946e3dd06547c3f27878ad0c31e866cb8d8c74d994a9c4c152fcfbd","e586f2001cf53ba587e04b33d48309466ee80efadef9d576592da8b8efaff264","0af92ef1e309c13b86030f94904a9567fc3d6ce0ac8e810dbb637ff4d5063f4a","d5b1417f0735caf720f0245fb0f2b38ff3b2c6cac50548cbc860e0e4bd82c2ac","483af28031f8b50597d7da26c72f1abe6cb7a0a31c33e2294be9fc7d8e6d06d2","b0eaaaf0554356daf48535f981c97bcdfd635e531452842df23420c0f264e90b","19399f0af13a2147dd8ceb83692caff2214adce3d49571e366dcfb3633df2667"]

Anchored

2026-08-19

Public log entry

search.sigstore.dev, log index 2514083622 · entry 108e9186e8c5677a81ef…

Expected log hash

eb47f42546fcc705387579993679cd6250c0b995d01bbd10805cb4c8d66efe2c 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":"v1787123762743","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 (c35385e31594…), 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.