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.
“Excellent VPN with lots of gateways”
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 2776103867
Proof data
- Record hash (SHA-256)
17a7567db6312fdd9a68704b885cc795b7973347e6af163ff477bca3dcb16206- Signature (Ed25519, base64)
E88AaG0dcRAoT/q8SIPOSUINdVVegLPkcbNQ8siMkAt9dMQ3idT8VOS0rXUlisK5yiUOY8f6m8ReZ7CyHJReAw==- Merkle root
4dc0bd79ba3e9442f7f1feb21f347e2f6fdbc72e99098aa5164776a6202654a8- Merkle path
["17a6f516d0c4366682e17ec8f81f0860551d12c0eef3c3f1872373d90d8df21f","70fcbe0791936f781960605ccb453e165bf4b68a758bde9cf84c89276c1b117b","098fee90354ec5001a6c56fbcc7e79446f4658b27d67c0f733322de1b1129519","c0383b1b4df2be7fb6e24e0180cd7df5f0470c7b7120d49441fbcb58d0772d6c","475370b30b85ab6dad059534f62694963603534973b7fdeccf04cadebe96b128","98e293a5e9803e08a07a9b2f7dae753b368966ff07e39889a85314ba47b24280","c668436c9de29845a75a90223fddfc8d77b9dd0e4bc208abcfb8e15f06186a81","9ea64c40d0c31bea45249a5384be1adee3b559bd3e650cb6d32d7eed891cd0d3","a37050fc17386c3c7a06d75229c827a13fcee5ac4319639d0281c087524d1541","b78b81ed5963022e27a688339adbfed546aa2e32b309eaa7d7f2099cf50dc7a5","2d8169de2efa09ba8ad743aaf7ca737c0a9d51ed76f84b94ad0d20e13a8866c3","d610e3c549b439cfb5c1aabd8830cc14808b683b9751722225fbfdc069352079","b64868d5884e6ca103d8fa1886b59a755a471482d82618eec868304914b8e334","72f96e42060ae616ed33b8fd6ac687c1899623eaa8a351026bf33e2e7a041d34","e60c2274998b06992577796b6abe86bec144203fe960878f7951a3ae12c9e532"]- Anchored
- 2026-09-10
- Public log entry
-
search.sigstore.dev, log index 2776103867 · entry
108e9186e8c5677acd4f… - Expected log hash
-
2498329b7eaf275d309293dfbac35d05dfb8a55c65956add8448561c05945f28The 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":"v1788848066028","kind":"published-quote","locale":"en","page":"brand:surfshark","quote":"Excellent VPN with lots of gateways","rating":5,"review_date":"2026-09-05","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.surfshark.vpnclient.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 (4dc0bd79ba3e…), 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.