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.

“unfortunately, the app feels like it's getting worse”
Google Play · 3/5 · 2026-09-02

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): aa400fc2b1476a1b40bf2bef928105c9374771a411c0eb7cbea33c0b133bb0eb
Signature (Ed25519, base64): LaX0JDsSHyvuEonVj8RB+qGTKCnE8/UuzvdONDK3LjMU/sgJ0RuNoZrjmv+UcSPPSWAm6RZhUFLwrwZiIKEIDQ==
Merkle root: 4dc0bd79ba3e9442f7f1feb21f347e2f6fdbc72e99098aa5164776a6202654a8
Merkle path: ["aa3cab4ab6e1ed9ea34e4ba859149d06a46d0670e85743307ac81e496afe2850","3c8b3e1810a73fbff2279e195e5aa0a2238c7c0962654bcc2676a6da39baa9dc","b5a062e7c603df4d4bead33e902fde859a3fec3fdd953893152c5922c736cee8","ae8a6c8526349a929c85fc9bcf0d71aba43e28259a5d9db6aae149931b561d7a","3a3368365a0e43205420e1dd89ae919e8978b1f7fbb7b18a7fdd4080d10b504c","04161ab27eb3b220778a07162b567da98ae484982427678bb8b5494d61783f39","37a395bc706f56051898270523c33433a074eefb637007e1c1c41682fc77e8d4","f8b3f2cc231eba7ae980de15bc9a2e43fd05a611645198673f1c28bc6d31d4b6","1f901c3119d9fb8756caa725c51e92949381b83107728f8fbcde82bb44501c93","953be7a1a1f37693f6f5ee1a28afea851618b5020435f6c44de67146daf04e36","af89a25bce2ed4803f1b5fd15dbc28d6876f2881f010749a95981429091081ba","24e450961210e2cdc5fdcdec60b2324d5b3e7e704d00d92186e8f725bb0670d2","e3a1de018ae2658686c8ef0556fbf43b0147585a01189da83c1927e13f8542e0","d3f9820ef177ffb6742d93ecece273e46037aa87afa8ee19fc7a0b34f6ac592a","e60c2274998b06992577796b6abe86bec144203fe960878f7951a3ae12c9e532"]
Anchored: 2026-09-10
Public log entry: search.sigstore.dev, log index 2776103867 · entry 108e9186e8c5677acd4f…
Expected log hash: 2498329b7eaf275d309293dfbac35d05dfb8a55c65956add8448561c05945f28 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":"v1788848066028","kind":"published-quote","locale":"en","page":"theme:surfshark/fit/en","quote":"unfortunately, the app feels like it's getting worse","rating":3,"review_date":"2026-09-02","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.value with 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.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.