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.

“Es gibt jemanden, der sich wirklich um dein Surfen im Internet kümmert.”
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 2542879916

Proof data

Record hash (SHA-256): 09e070c33bc0258af3833f8d0aa475b80bf489c306f3d16f3baec4e30d897f52
Signature (Ed25519, base64): sxP0/O8Ev0IAnaTmMJpwszUJ/fsC8bZ8yP11TVPu25UD48JxjtZ+kQH3Yn5JEnjMfTdEIlB8t/LsPJuQISp6AA==
Merkle root: 681242bb8cfa94d3b60cc06de1bbe3e5e124dc1675276b11df0aaabc9faee58c
Merkle path: ["09e3e8b35224fcacdaafbb49505f85da45e40a64165a5f665959a43c3f744e33","eb553bfa8995ae807dd637296c3f8f3013ed4aad2120267c4d83ce29744188d4","3965059e0d85d9826c93baddd4d40692fa90ceffb00a39da3b67825fde4c3038","fe9a158e1ab6f05761836e889504bce9384ebbd026623fe17f23fec8fc346557","4f62cd246b6357cc75f7cb231b0dfd5cac1bd41feed606b4f161d6ab8a68564a","d2fc1528156a49df1af6be7779155a28b2c834f5befa6e544b7adf33ed1e7ad0","e8cab91f824a933c11c2f7f1d92c4e11e7546fcd0164595febf2a8e0c006544f","249e073829e81e3439ccf78422b8872803ac1be386ef9fe323ebddba72927b2d","8617add97553f9183ed0e539ab6ff67f65875c9a9188d27fc9b04c10df82336e","979f24eb4adbdd0b1844bb6494469eea4c33b0f6ec550213346f2cfc9818d5a9","12d1649af6e378eb21c1ab58561247841ef5f474a161b740387fc218fb58a971","37dd8004f747556e60a45fe69c451d174d47b16914c67cd7925e5ba2b1ebfd55","153ad351563f9e4de319dc32f3ff7774e0dfad0704c150aeeef6359dc7f03444","018848b1e64bb342ebfcf3461012f852a9938ad88239203d89ee764353ea1567","78eca2193b177c5ad7546ff5d365dd6cb79efa278dddff5151740888f319c0e5"]
Anchored: 2026-08-21
Public log entry: search.sigstore.dev, log index 2542879916 · entry 108e9186e8c5677a2329…
Expected log hash: 8337812f20bf1207a3c96eed87ab975d7e92ac1421dcded24507b32e456b788f 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":"v1787282728402","kind":"published-quote","locale":"de","page":"theme:proton/service/de","quote":"Es gibt jemanden, der sich wirklich um dein Surfen im Internet kümmert.","rating":5,"review_date":"2026-08-12","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 (681242bb8cfa…), 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.