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.

“Kostenlos und gleichzeitig zuverlässig??!”
Google Play · 5/5 · 2026-08-13

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 2621349433

Proof data

Record hash (SHA-256): 0754a1da07c0dd1033901924836b7c63f9242306b6ecaafbc25fb2dac064a5ff
Signature (Ed25519, base64): 3JfjAPlKm1TCUc8F/ZZwuQwQJwdINPnOooChNrfs8pMGELwCL6q0IX/4aZ1Hyzqe3ypJB2rPs03suWwZD4iwDA==
Merkle root: 52b348c94f3fdce59db013e2d8b151833bfb9c02163bc60ea07ad4321b96c806
Merkle path: ["0756196f57d41a4f57e93788f4f08c69987cb6543af019e7b257abbd2de809b8","e62f6b980570072d98beee30b0039e0bcc88979cfe6e90f236fb14bbe88cb5e3","1f41ee2e5bf0e29bf3e53ac683ddf1d445cf6dd323b49911f0183b28c30b744a","dc1310eae6ac398549a62ab8769fa894d7ac2a3600b40051a9f719755d5e82cc","acc40f40bbf78d4621f73f5a7d54cf4dd17f56e1f19dc850c8d93b96ede97101","6edaaf5c06f9d2de274272b0d3ad9f060ffb627bdbd2c463d4286f4f6b9bf002","2218f7a340e49014a638c5d79e938adef4dc5529b2169a68a50842d6db5a34f3","53a102559ca793158d2844f9e96c1b52074de934d395304c48ab6d23acd4418d","6f3e7df68096bc8899472e799b665c5f1426737d4df1ba42ac913ff92902e811","38fcfb29ba1948ddb235b3200bd1166028ebcc4f40b025ea3b32951cca4bad65","641f60a0543f145821888a3ec9e078151f53feb311b5f041d14db9fc150c06a2","669ab90fb715919711df59e8281fed40b96b704020c2f40755c68d0b3c101ec2","737cac4ca199ff9d501e9278c7c4cae2cea135754fbc58a1df4019ac06ac48eb","775de910b40798d9f37b75d39be79e50770b797482dba1aef04bba70619fff3f","50b301601f25f58ca39a522d1fc14c87ef92ff2847a542557119e06fa2bbb889"]
Anchored: 2026-08-28
Public log entry: search.sigstore.dev, log index 2621349433 · entry 108e9186e8c5677a91b8…
Expected log hash: c0c478568c16caefc62b4dd151387aace853e1d48501c09aaebf0c1fbe3c7cab 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":"v1787884935070","kind":"published-quote","locale":"de","page":"theme:proton/quality/de","quote":"Kostenlos und gleichzeitig zuverlässig??!","rating":5,"review_date":"2026-08-13","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 (52b348c94f3f…), 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.