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.

“Für einen kostenpflichtigen Dienst ist das erbärmlich.”
Google Play · 1/5 · 2026-08-12

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 2682182715

Proof data

Record hash (SHA-256): 081825a8c72188a1a8edf6ff7041a44e5791192ff21c0809834efb6e9a9b121a
Signature (Ed25519, base64): G0ifN+A2WOyogl37DGoIp3iMuWnvVZxI+kVo5uIayQSPResS+m8g5sZEcI+hYJKndNU/xaExlYAlRnTozNF9Bw==
Merkle root: a98b50e535ae53279e8516802157b424d2a2bd6800d1c251ba60d9a742aeac5c
Merkle path: ["081a558fd6a4c6f66277dd0190d12565d5b689a7c16c624a1a96632a6ab4258a","0f4c22db046355eb544f9a5109104b2f1c12067fae3d03daf1ce9dc20fb30719","42ffbdefe889a81901c8c171a669482797d98fb45f8380fe76dbe93ee9eff867","dbf666970f0aaaa7665a2505bb632a5393da019aa6aaece987dc1064b24b0405","f22a6330452bc228de2038a5b8182edfb5a2b34edc8492e5d9dc365e1a2ab830","6f682ece9a9528a0799f9f108562e1c143e95e7e5385554a314c00ce596b7ae2","f5114cdf0beb2c56069be834ffdcae1f126fc7e6bc37207f24b554a064848ba7","8f32b8a1b9063de2f60cadbb9766597f6b02130b5b69ab5bf68336569eebf3c5","48d6033db7a3993f4fff701ffcb7a88d7ca26d6f837a18b206b55a4b05422ad4","9044e8695c1d26c9ff5bec825a59cd07af61b11aea469f5bbaccaa74490eafff","106d40972bd241bfa4b51104a70feb42ef6cd4ff180d3dafa337cef17dc0dbe9","20524de8ff4267e2b0776624f09fe5480f9fe33a5239ddc15c15fd75e63758fd","4ee196375d66e09aaa8a05a79329d68c3a50100c830835060402aa8d235d95c6","71a4426d4276c0c224a382ee3cdc207a0a9d5ddfd42ee86b341203278911461f","86fbf391c95a64b4edce12edb659c77256c72926a279d6981a94152c2bc26607"]
Anchored: 2026-09-02
Public log entry: search.sigstore.dev, log index 2682182715 · entry 108e9186e8c5677a8f73…
Expected log hash: 50527829b2727ec3ff54bbc04509435e1aad57a1b8911c437a05134629a261f1 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":"v1788314008672","kind":"published-quote","locale":"de","page":"theme:proton/price/de","quote":"Für einen kostenpflichtigen Dienst ist das erbärmlich.","rating":1,"review_date":"2026-08-12","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=ch.protonmail.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 (a98b50e535ae…), 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.