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.

“I like that Surfshark doesn't limit the number of devices.”
Google Play · 5/5 · 2026-09-01

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): 2edba0939f14f95892d21b535a1d279c0fa0dc7e10964138b44457d0d75d26f7
Signature (Ed25519, base64): Qn2ZyMQKpt6lw4QPZeelmBQjiQiC1kC6QQTn3MnVflaP/zFIweqd6XeMtP0eOrlz0gW/iKiIi84oU1wW4cHgAQ==
Merkle root: 4dc0bd79ba3e9442f7f1feb21f347e2f6fdbc72e99098aa5164776a6202654a8
Merkle path: ["2ede4c7c4caaf8a17528728103c09b2dfa642cb9b8c20d327528779242ba95f8","a1e6898cad5438053873c6f63ead0bd150c6caea3f96ad789a4cea31d644c049","536fc52b9529e7c0964f9d78c93fe2a98249744114d8df1b9fc46632b1adc012","81e8a480921a39da0e6ff2f9240a6a19186bd3c48ecd918e342b309e438f3d5b","d283a9c69e884de01da1ce7f496ba1f58297067cfcdf3e91984ad0ec32dc442c","a27ee59cdbc8fcf5f4609f2bc4ac5d279d06b9defe39df140a042971a203c648","232eaaf793470d16fe94f12d6ad1435aa458537314c464239448783f35004338","7e363e55c2b0d97c6dac244ff934c124437cd8d492d070acccd4b62c2a92a1f2","c89a4cec579fc91c42419610e4a560eb00c80db53478d70ae9724507458cb812","af881b4e5e49f49abee42610c8929e054194ccd8c4de89e2892d32862e0f3b18","dd9a2b0b97702237aa58eb2e839b17a980432dc29845c7fab4d204cc87f50048","cdc9b547a66b32bd7e3dfe1dc71a93d8d8fc3b198c1af0cc5d7f17b576402dde","aafc4d7abd1fbd48f01758db3e1a1278331dd8c09b348c20be15802d81136ee9","72f96e42060ae616ed33b8fd6ac687c1899623eaa8a351026bf33e2e7a041d34","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":"I like that Surfshark doesn't limit the number of devices.","rating":5,"review_date":"2026-09-01","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.