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.

“be aware of auto renewal practices”

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 3163461995

Proof data

Record hash (SHA-256)

2c5c5ce563a068f59269512ec93a55e2d92cf0d4b5a80904978730d422332bf1

Signature (Ed25519, base64)

++orJVSm/Tdpcw5YeyqrgORlESL+XTXjbVu58isgHS2DmkYsd+n65eVc37DOzQQVrsdaCHv5iQrhWs7TnfR/Dw==

Merkle root

f2dea3193623a59d18b4d230cf1484689c024b05d34648a4bedfef78c47360d2

Merkle path

["2c6186614fc34ac111ffc8decdf7c0337b98b93bd636fb37bc9ebbefedc4e94a","237c6e568d9d10fca072957bd68b818b9c88561c9eac6484464a44866cd53104","88974e486c89c77b2ccbcee51bb1c879e571649657f09e68f91906921629449d","9627c7aa5e73c293932e8acd3e721bd58333ed0d20b3c23d2b3bc67824d29ead","d508e4d7811df8d7316e425d54c103750a945441d49a7b8808635744a0bc1e09","a42192002881cf539fbef2f7a0c9d9d57c9371e2e0fd85c0370efb3124528d54","55e11be77c85a2ef824901411452d80d243394e8d6b2259346c8c8ee5ade1956","363d7c099d8d53e1291f730b1ada7ed1e648b12babf79606d03a35200f26350b","03c9509440a14714009b08778b82df64ad3262e76ad11d234b11ce03c4c94456","23b7e5f648a7da6d53c3cf3cd1a434d5d63fe6f0d9dac1cc7156a166af3aa755","1e4012b8636c58947f1464f68995e24cb30bc48a7f2f69e43ba3c1229de58b57","ca914761c020d6d4c41f330c4764f3390122af15302d295f2d6dafc486124bde","665774a1192b73721b453ccc4135f39652e90d0c548e0465aa1a009bf210f3d7","c3040d35b4a41a3d91fd7f6d8e1e6868620c896bd0ae8d09b1351d70693bef08","658fda4333b0a975ae51c0ef52c37c157029d897878579fb5ff3ac48198b1bf3"]

Anchored

2026-10-09

Public log entry

search.sigstore.dev, log index 3163461995 · entry 108e9186e8c5677acea0…

Expected log hash

1e385e1035f15f3dbe860bb8f3e4e850b8c2ce2b31edb58c97be626995a4adf2 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":"v1791544610158","kind":"published-quote","locale":"en","page":"brand:surfshark","quote":"be aware of auto renewal practices","rating":1,"review_date":"2026-08-31","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.surfshark.vpnclient.android","v":1}

Verify in the public log

1. Open the Rekor entry (pre-filled with this proof's log index).
2. In the entry, compare spec.data.hash.value with the "Expected log hash" above: it is the SHA-256 of the Merkle root string (f2dea3193623…), which ties this proof's root to the log entry.
3. Decode spec.signature.publicKey.content from base64: it must equal Citatio's published key at /.well-known/citatio-signing.json.
4. The entry's integratedTime is the independent timestamp: the root, and with it this quote, existed no later than that moment.
5. 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.