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 nutze derzeit die kostenlose Version, kann aber keine Ereignisfarben ändern”

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 2579623934

Proof data

Record hash (SHA-256)

13bad43a113e16e5542afda9a29682fd603d669f5a86dae77db2d51bec5ad0ce

Signature (Ed25519, base64)

1+GFMxXAiLs6f6bMBtkAv7JjO979L1glLWSC+TIAfeAz/MEL0AuZs6T9slchvWuJnF906pgjlGC8w9x6vBcNBg==

Merkle root

776280ee3d7c9fb97c17efec70636489b157ec8896f1d74156e65fd2784f427d

Merkle path

["13b7515944c69633b77a3b7a566a2ecfe990daeea2d86ed4dca301f48cda2e19","c8bbd54d794e81e1566f67e36077410aab76fa5da39cebfc95f07c530d45d700","3e1a9765e508f9c24289169d2052f98d2640239a9bcc77162ea8bb162552a728","b919dc87e2e28cdb6f04c302d3c1894e940deb474fac12de9ebf0d35d9c36468","bbac9adfbcde9065039c5c25bd68c9ca02e869a3fc8612b7b23839ff533a361c","3fcfaf60fcac7eb5e507442bdd22b2cf1213b5e7afa8db1c63dfc65c9d287d73","8f7599f8494ba0f7ba80c7ccae81188a24e66f8bc2645f3d95aa0bec48a70db5","9ab0268af118d22e3769c67a622635b7eca619dd3531497f2a1b9d162707348d","f28c20dd2af42c24b30e9f5ff9c32ee0151a169db6938cab95eef75d5a351999","c96f718824b7cf7e5e703fb61a2042bd6c1a238975bcd9c37ae9f3fd71074353","a759fcd81a9213685f5ed216277902356c866aa6708b73a26849fa9ef7e5a7f7","023a5af266f4ee0a70f591463d31f28dcaf6b3174be7c9f4383721d4931e5f64","d52ff57f3784c85afec760a4269c3d85d62725d932c884d3ad6b0915e7e87160","ed7d474ba5c549457ed31ec3935ff263facb949960d2ea6afb4e636fe877616f","e23829f40d0756976d56a16d11d0fb78fd0d4616f1a21fc6a093fb08e70e5613"]

Anchored

2026-08-24

Public log entry

search.sigstore.dev, log index 2579623934 · entry 108e9186e8c5677ac501…

Expected log hash

8e297dda0356012bc344d5c642295d48723652381c3471953a3655745b453c4c 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":"v1787543470065","kind":"published-quote","locale":"de","page":"subtheme:proton/ordering/gratis-plan-upgrades/de","quote":"Ich nutze derzeit die kostenlose Version, kann aber keine Ereignisfarben ändern","rating":1,"review_date":"2026-08-05","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=me.proton.android.calendar","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 (776280ee3d7c…), 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.