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 3140838741

Proof data

Record hash (SHA-256)

57a13f8bac6902daca2512ea86903f89e9746e091e57692a27a1b10a3fb1f87b

Signature (Ed25519, base64)

VfjJ4Xl4tNK5bdMXJpneSG47oNHzkT3+Y6VI3j49OoF0Re3STy7ZGe/MfG1FVkjiXhjLGPIp8zZEEAttXxcEBQ==

Merkle root

68ee5f8618d9ce1aa33f2cb5b6f3145b5f909a3c35a03ccc3d10e979b2f81082

Merkle path

["579ea8ec1bb8f1db608881d93cf9f17c80d09341db1f7f765af7243163f0874a","a6f19ca43bf1ffa987c1e49f71a54862d0ea1cd7e2e1b2d89a6e21d98fc5f404","23b576fd178f7a3e95813543d190cf9c1a36a5558d3b001c064df02b7123506f","442c2ce0c644103d0a9e16da19e2e13749f7c1a65a116e71997b1eb375f43667","f1c4d5cee79cd3e16d1f90995416f628bbe584351304eda1d67fa01f73ea3608","0b71ffc70ba74c4a81df3a5f7d71285feb0fd327d41234e34dbb8c112b753068","9ab6cff45edcaf032e95508287750f0875ffa5f77a5361784a7a7b6468da1d3f","099467c19452900ab4351400b4ce3d1e5a7d02d3b5ef679bf99a96243392bebe","c8555f36858a2bc1f62bfa530e32ecc091f6f7f64c198d410f09af8fd723d493","e73ef1b4d8d3cdec7a5ee1207a23cc7714c2df49f7ceef17ace042ca5cdda961","4959d9c0aa87a08b0b6035ebe7485c4d8104e82fcda44d9a69e3910c45433f02","c6e64e12e0b8b2f5eca9fac3d3f3899ea445ebb78d97caa0a799132e0d17d541","71e82fca1bf2ae48cb6a9adcd3ce0a0d0fa2dea7d80e41cfa26b2813f59587ef","e66299710f80b56c392136748910ac59d79a991f3e479ea8a96c5c23e200aa78","418554fa0ebde54d6cdcc03145c7126505ed96d3734e8e7ae56dc0dfd8ca0a2e"]

Anchored

2026-10-08

Public log entry

search.sigstore.dev, log index 3140838741 · entry 108e9186e8c5677a4791…

Expected log hash

ca4949400cf2d29b49789563ea2e672fc73762380548d6fd65398e40c0d98728 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":"v1791433229105","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 (68ee5f8618d9…), 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.