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.

“Klar, einfache Bedienung”
Google Play · 5/5 · 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 3637467057

Proof data

Record hash (SHA-256): 074674f344ca03b932c8f6996a7f12e47cef779114ae5de3d6d0171728cdfc7e
Signature (Ed25519, base64): zSdrlxEMC7JXLTZPPEOmbWD7SvQT3Sz1AwusSnOmipul9I4/xg9tjV6OiS7WRXMXLhJSAQvNDW+kH3e4nB0bDA==
Merkle root: adea50978c44b7e5a42deebe1f6aa800128d7cb9d40a380b6d66c0a0412d1342
Merkle path: ["0735cb31d1897e8898c22a8bc3c48f07d5afeb05e829032a355ff79478f3146b","d346ce53e722512d6c91cad3c33a02ea7c973bf544ddce2b66ab780cf3e519d1","0f1f5779198aa36aeb9ce511c4b164b12a391054a297677f418518d83096570d","9ec346dcc0ed86cc1f49801aab46717f363f4c8dc65993a07372d74cbb1acca3","f9b83a1e0fb1db5c373449fbe558bbe8ddb93e6348e0885728684d18c80e84e4","326aa2592256871ce3ab6f6910be0fc5093f3a1a142846416b23b60a55902112","93a2581433e2d662cf75b5f7da651313b0fa8f5793260fa96ccac947243eae35","ee84db2b830bdf7f976977d23acf371edaffea21bc27ba41ae76a63475a82102","206888b42f52d3c9e7cac8dec5f7d3797b99a9d9177cc4fa049b37c2ce28b39b","ff7c450340355c9a22d41a7a56cc8710fae9c3b97715fbb4b71a21c7ee64f407","ec209e65f02de48fab186fc58e944668a01473e813087b0fb66edc94d870bcfc","50ec2dae976e3d44f2664fb95a79e395a9792bad555e73c7828fab9d1d15f4d0","b33a96ef5b980f3655206c9db064bb6266945457b59b4b98e2e19f698343d0e2"]
Anchored: 2026-11-02
Public log entry: search.sigstore.dev, log index 3637467057 · entry 108e9186e8c5677a9713…
Expected log hash: e8a3b7eb12262f106844c69fe5603c2e4003589f206935cef50a87cb382b9cb3 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":"v1793588145516","kind":"published-quote","locale":"de","page":"brand:proton","quote":"Klar, einfache Bedienung","rating":5,"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 (adea50978c44…), 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.