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.

“Standardmäßig wird in jede E-Mail ein Weblink zu Proton Mail für Android eingefügt.”
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 3637499226

Proof data

Record hash (SHA-256): 09b45b5cd7391dce5d6e13056ffb2b42e4dbc2c8c5d493a67f9feaacc2e4a0cc
Signature (Ed25519, base64): hSplDKilCgZ4NjxRRTMyimZkF/QZGoyn7gqRATOc2OdvELq4+FO90MbrKBxROi4mUweLotorHDQj8RYeHNPPCg==
Merkle root: ba71534adeee96c2b77faf4cc9fcd404d26cb0d4c3903c3b6dc0aa6610a7f76c
Merkle path: ["09bbbf367edd7ad651e6bc933a9ec63a037802eb6dafddb11011cf523833ca28","4a1c471dfaecc09c7160ed6470792706d44271729b9883b13bb88374edf736f4","0cd5e012976ccca97c803666eb55b9a20714c2e0c7062e9b4bd0188fad4c78c2","0163a7681d32ab383d28684e60293ebd50d3e728c0ca8b7dc4f7073b18955d0e","6722128f0f28969d678d714370f55bcd7e92e57add2e882e1085df178526e828","f83bce648e8640020c3656fd48725a24e675e3d184cb45b076d62c891819ad63","501e1f36267058e2ee68df385e490690ace50c8efb12a8679fd841b67dfbd804","52176ea9323fae25bebe6ef482f67abfe64244e827c36d71268078a077a0196a","1b1df85c8037eb782c460ccc6b8194a1ea1550daa07beececc586c4d00ee38b0","808d230e9566edcdcd0216d60d7f549b3b596f86e66fa8f3921a53eb8656e625","968f747f4450bda568b7d18b928908ac2ecc7e8f82caf1da731b64e52849012d","c477c823c95249e16f18067751c72b4c7f722de9158e34239871c7908195965f","ecc8c644689d5168c4761c410d159333431263bd2e087649a593b95094904a7b"]
Anchored: 2026-11-02
Public log entry: search.sigstore.dev, log index 3637499226 · entry 108e9186e8c5677a9147…
Expected log hash: 4fead4766675aa49a83380ad1791175203a623dfc619fb045f553da7e56c9094 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":"v1793588433208","kind":"published-quote","locale":"de","page":"brand:proton","quote":"Standardmäßig wird in jede E-Mail ein Weblink zu Proton Mail für Android eingefügt.","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 (ba71534adeee…), 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.