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.
“It is an excellent VPN app”
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 2907673729
Proof data
- Record hash (SHA-256)
0def848a522cc972041c7117a9ad6be10426672993e44d6cb9ee9bae92bf39b3- Signature (Ed25519, base64)
Ut2iOO8RzrcspE8dPHdu/HnCYBQqZkSleqwvluLVvjoxMScwbkJJoiaGF0p1HKbZT4M07XUkx9viN/t1BCxGDA==- Merkle root
b9a08f9d6d76dd148110a496219c42cf3205c6f982800d84d5c85d77e9461e02- Merkle path
["0df00e927bc0e85864ed4add0ec5966fc979d4218ad160d59925dddc0c4b653d","40e5c5033a09358cfcb5a1d37e5971c8db26dde6814512b6c09c0a12bba64151","fd0624925ba8282780bb3bbd47248f79aab7dbe4075c44a82267e53e396147e5","b451ec2e94da0bd121cdc8b1c12f101d33e57ac9c0d903807001d6262ccfb669","d09d093c2a6453e7cc3e16f75473fa1eb37483349f97ca36cd0cb9e97e5f5bea","47f0fea81b27a8fe1be935add5df83973b95149e7af8ee316bb48c8f9f86b051","500bcc0543dde842c62970bd4cb9cb81cd744c56fb4b7b10aeede122c0fc9b8d","a518071f551ce1492df129f7a603a2ed5415061a1a5ac7bff8005689382c4af3","9d16a1f4701a832d4d89280fb484fdbd84baa1e83d2dd1d434ef0f1306f5376c","495fb464e638de16e30c437f65a04e505f4d0b3a609199eaa6e6e32f1b135e97","d4471b161c87e50fd38951ed2e211fe04e6d9ffdda22d17889f166869c99c4e9","85daadc41544f83be69d5533c0c879f1f8a6b6c7e356bd7472ec3f624cd585ca","38643099e759f6b9db1dc190b469982c0e70d71dc8caac721f2a46ded3b658ea","7a4792c9dcf9466d19ba61ec3efd4f578e21f2d3035e8fa6a6264d3045083f7e","43a562d6822dab12c673c1efa0a3171d1ef69b949f676fb01847e1e5b56274de"]- Anchored
- 2026-09-22
- Public log entry
-
search.sigstore.dev, log index 2907673729 · entry
108e9186e8c5677a06ea… - Expected log hash
-
bf9a74000249ba6e66b1e29aae9d8cb95c3400dc118569a80e5c0949f3e8ac62The log entry'sspec.data.hash.valuemust equal this value: the SHA-256 of the Merkle root string above. Recompute it yourself from the root to confirm. - Canonical record
{"dataset_version":"v1789969984102","kind":"published-quote","locale":"en","page":"subtheme:proton/quality/vpn-speed-servers/en","quote":"It is an excellent VPN app","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.valuewith the "Expected log hash" above: it is the SHA-256 of the Merkle root string (b9a08f9d6d76…), which ties this proof's root to the log entry. -
Decode
spec.signature.publicKey.contentfrom base64: it must equal Citatio's published key at /.well-known/citatio-signing.json. -
The entry's
integratedTimeis 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.