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.

“Proton ist ein sehr zuverlässiger VPN-Dienst.”
Google Play · 5/5 · 2026-08-13

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 2680529400

Proof data

Record hash (SHA-256): 1077529d7f3d70894b4edec0f97a41ff936d5950bdbaeac4a33eac07b1d1a021
Signature (Ed25519, base64): RCfRPr4KJiU4l/TMqJnaXwMLIbSo+tumx+5UHoMckwWHGxLlMz6Um3VU4yxZb2m0R7yfZTbX5lpq4T0FsW0iAQ==
Merkle root: 0330ee7ba8e00d15f6426658b22fc27ca31e59d35f748e4fce3d7515247465a9
Merkle path: ["1076b9b5dceb853e0428b48923a12529e684b5d07f4373657723c00fcaa2b2fd","c2a58ff2953d729d54a62912126a8c69a5dfcaac86a7d8f26daf4e5245599c49","dbe2808b0cc6e88036706b62ee8204daa39955bb427db4edec4b04a88357038f","2337c352fc10d65e07593770f06eaca90d65e7af280e065378e72951217650b7","dfb8824097f112a11a037db5c3150f027718179a39e0f161167d5ecd6a486394","4ce023d43d472f275080a11b684898221f67925af4722a89bb4c1e06f6e1b653","014d52912dee07934a3f5a816e0a3a7abeae1781189d66fe80117aa2bbd43e8f","259a86af2486490b82492209e87c5e92e0a0358beb92e3d63b806cf644f3ef26","f4344026df889c2dae543a3489c4a385a65a2a59f509e870e693d24ef7124ad1","fc0a051e1d7c3922abcf3dfbe6f5e8de7c7352ae3fc124ae49ba3a04412191bd","256b94c5612246e6eb30822b283bc7be68342a117a47d3e8580d808cf41c01c2","6cd33a246b09c3a683aff5ce977e0f0a484d42a8ddad2b2a0aa309ecbb9d62d5","d2273f3e7fcc58954042e67e1b5e452db8462b769fd73af7f44aaf6e9dfd66bc","ed4e39ebbb5872b55140ed929350a396fe817203642e6e65038bc747a571190c","e840d0519b86830bf6feb5135bd7342a46b8fe53cc7a93dcade23c2aa6372980"]
Anchored: 2026-09-01
Public log entry: search.sigstore.dev, log index 2680529400 · entry 108e9186e8c5677a5261…
Expected log hash: 1808beecdc671d46626ee766a7fa4743ba6aa74779b9fdbb552c4293852a77bf 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":"v1788296426818","kind":"published-quote","locale":"de","page":"subtheme:proton/quality/vpn-geschwindigkeit-server/de","quote":"Proton ist ein sehr zuverlässiger VPN-Dienst.","rating":5,"review_date":"2026-08-13","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=ch.protonvpn.android","v":1}

Verify in the public log

Open the Rekor entry (pre-filled with this proof's log index).
In the entry, compare spec.data.hash.value with the "Expected log hash" above: it is the SHA-256 of the Merkle root string (0330ee7ba8e0…), which ties this proof's root to the log entry.
Decode spec.signature.publicKey.content from base64: it must equal Citatio's published key at /.well-known/citatio-signing.json.
The entry's integratedTime is the independent timestamp: the root, and with it this quote, existed no later than that moment.
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.