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.

“the price was very reasonable”
Google Play · 5/5 · 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): 8dde8a9d117ca6c45aeff22fd48143b3eb9edd867ce6a835614ce3d8e72198f5
Signature (Ed25519, base64): PbK8uQv4GagZWB38nVSjG1bA6lXv7S21RPDcd/XW8p031d3UqX4zUMefJ3OUREMfzxCm5vlkUQe7bYohRRALAg==
Merkle root: 4dc0bd79ba3e9442f7f1feb21f347e2f6fdbc72e99098aa5164776a6202654a8
Merkle path: ["8de1bc98df0f4fe96f31ecb0236a83d42b89e7685a82566fe414ee148f114c1e","74d7fdba19a899a58dbe93a4d10cadd0204eb677656fbde5644398fe77edf589","b29abde4b851f6e71dbbaf041de1458448c13cc7e910606cd86614be9ae3441e","4df7bfcbf8132f7185345feff2005a512a08fb968584e0d8ba83ab5a9da85176","00e228ed5f2b6b2d184c89612cba58c2472e0c68eaec51996df33bb56851676a","9ac148bbb1b10fb4c2ef8399986480d6e5531e41eacf59a21abdaafc7a8b4d29","4ec45affe6edbe9ee52f5823713bcf715f907c974f56ae784a31139bf3d4ec88","33e197b6894a2cb5e8ce3e58e88e094d19df02b638336df1fe8ab32edd81f407","b80a8a00d80e0d68abbfd30ac4786c53cf9421c3b5aa58cbbbdbd3e0acfd5798","bf36a1682c931c4809e32e150a9ca80cb5f9c0af12fc903b664681dd644dea88","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/price/en","quote":"the price was very reasonable","rating":5,"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.