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 got a developer response within a day of posting this here.”
Google Play · 5/5 · 2026-09-04

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): 9061aacff9ed2353ddaba695fcc282939335de8e0cfcc891b3a6fd8ce16ee377
Signature (Ed25519, base64): sgkNSw0lU94FGxMoBM6bqhCpwmm/sIWarkDKuRXVaT/eZVRXAMNQ/vZxmyjg8NP79njP1C6qDZTJa5x95vJdBg==
Merkle root: 4dc0bd79ba3e9442f7f1feb21f347e2f6fdbc72e99098aa5164776a6202654a8
Merkle path: ["905f39cbb03e995aec26145365a16d40e5c3347c39cae69296e4da56fcd41c18","ef091f3cc5ab0b767a765f7f59d09a64a50e3a529b77e6f46b7ba56442ecb41d","ad308a51908ebd12f12cea0910a92bb22c60601de1a7867d2e71a1d8953735d2","3bad6e2546df0f647298bf32494cae717a455fb76860a0e22de4eeb7514855be","a9f6f06df4604eeb9a9e71684c63daaeb3a48221a89a1288aa71c7eb0949364a","0d1c16f9b75f5b2c495027912dcfa067867ec5f532361aad0b6c31053bdc50cc","d0d100b6eca6ffd869508a24d6224af75035f9cd8088f4b2acbeb819dda2728b","fb4f9bf282a703d779384c70dbf4e28f4aa1996ca98e374ff2947c17eb23efdd","e9e11977eac4a5ba5b0293d80a69353da253bf7eae9272e58b8afddd92284885","d472c0ac22b505ca6e04b0f61723aadb30b6d5b11716db504157af14b5c5fb8b","777b47360691f2b3b57e757f270b00fcea5e34e7a46ebf4242b7d849caab7641","d26424069f8ebada7d5db61084db1487cb6a3d9e3a9d7dea65c859d46af6bbd0","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/communication/en","quote":"I got a developer response within a day of posting this here.","rating":5,"review_date":"2026-09-04","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.