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 kann das Proton Unlimited-Paket nur wärmstens empfehlen;”
Google Play · 5/5 · 2026-07-27

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 3668983302

Proof data

Record hash (SHA-256): 06f732c611c6a305168a82ecc38833a3d67bea76a7ef064847311ace679406bb
Signature (Ed25519, base64): UiVU8WCuIdHk2LgRMhpNsB+SV5sIqoLZJidnDOkiana6yVjWMpHQ/re7tw9co9rc/ebNkh8U4UNket6WPDv0Cg==
Merkle root: 405d85333c1c03a7ae86f6b232380a3f0e8a386e4cd2c9bf5bd2480ae9ba2988
Merkle path: ["06f8b44485f254922e69ccb3b08b4e891242f63b57dcdf79777adc103fd2d354","18e9ec9a1304f332434e303bb7ee827b8014425a7c2af3c2055de5120cbde61c","58537dc0c016a5a7c007e57f5f856055fa3749128a12117773d6f8b8865b3ba0","0537a6ff28d6a3f77ff0a4d43b13161622e08531a71020447d1168525a5d2bb6","e37cd13fc4f79666d45195006dfffd57a0ef3bee29a6ee5dceabe71c52b3f685","3d5406849d3a47e6e3c28366ecf6aba9e9c67517d38a24208ffc61d47315af21","f3df55741929e4f9a4c5c7e9c5455ceb8785d56e83cc888a384fcdb0a9f66ad4","021cfa2f0b6e60344f967f090c39c3b70102388f0f0ff154f4255914d86d3e01","76e74f0fe8f494438f2b6b5a579630f164c7e6a7cdfd1afc580d018bb4a11dfb","53166ac6aa2d72eed2c595c332cae2572567bc4d29a0d413a0bb93a319bbf727","9042b1a9a265251aa85b8f7a8cb217e986d09163da8aee80a3bf1f89ce1ddc8f","786bb926eb6a5735d53cb29a06ff3e65b4d29ef8fd39d596873e263e6e08aa4b","19a71f7971408d12f874f3ea09b06e4f9b44cd26f6dbc08d0466f033f9881220"]
Anchored: 2026-11-03
Public log entry: search.sigstore.dev, log index 3668983302 · entry 108e9186e8c5677a323f…
Expected log hash: f9f0f1b08ea9ca6d951fb003d493c517d980826708a70b4fc99c8b9c98e286e6 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":"v1793707617662","kind":"published-quote","locale":"de","page":"brand:proton","quote":"Ich kann das Proton Unlimited-Paket nur wärmstens empfehlen;","rating":5,"review_date":"2026-07-27","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 (405d85333c1c…), 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.