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.

“A static IP address is way too expensive at 92 Euros”

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 3240231023

Proof data

Record hash (SHA-256)

0f4b15626a99c3339cec22fb6f9073bb40e886e29c6df51709c5fd4555cc856f

Signature (Ed25519, base64)

5THVnU3eACrgPItpcVhwFv3O8z6+GOlGk7DD7zqybz/udspcjPihq2iYU+P731bZAwaN7KMoigpftiNuP4pmBQ==

Merkle root

888a38c73939ec95e6f226dbfb3637325026fcafc5a795aa4e227b811d6b2c84

Merkle path

["0f433bcf9fa14946431acdda603aaf8777f9acd1e56930d12f5c5ff8681495db","9bbb59b78b661835228d8613cd3fc7edc4246faea9bd2842cb95524085bec4fb","9ee8329dd128279221086378c62710b858511a0fd7e7b8a63cc6345528b7ca97","0637c2411675adef14547013f8c482354c62838408fc113cc30280a7636cd519","7ee22fd319de36a063e6b5ec0a50e95db9ebb4a3763f7054208a4472da3bc2ae","8ddbec389f332348cc6c4654f993a2b78746545b896552a2270729c8c7adb6fa","a5ff6fbe5685559b7c3cb7240ecdcbe2bc10a8379a9e692c2fa1229f97c731fd","389efbfd710b938d974ce052bc43512774887b7ffa202eadae64154b6c738428","33afc5d1d9c3a2733e4574294bc74fa0d7f58497ce8e7a4441fa649a9e24ac82","f672d5a3f78316595234cfbe13e327aa77ed3ab9df28801da2321c6973b767d9","c1eb61eef936ab9c32f3a3ac6faa2ef692d0109d56de9f24c4d9e0b98dc22705","062cbbfbeb4fd46f2079783d29fb5f6cef5c48e70dbb9c2980860cd1d92ebf74","410ad2e8ec6f218bef120c1cded3462a092f61baab59fee462fd9704d436d66b","f46648ad2fd9f2769b9fc0ba1c434d2040de67cbd8b7a61df7b7575cd5a9206a"]

Anchored

2026-10-13

Public log entry

search.sigstore.dev, log index 3240231023 · entry 108e9186e8c5677ac0ab…

Expected log hash

bc440cd3136178aee800fe49b9cf2e319542a645c9abbb8553c6ae1e354ce201 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":"v1791860805798","kind":"published-quote","locale":"en","page":"brand:surfshark","quote":"A static IP address is way too expensive at 92 Euros","rating":3,"review_date":"2026-09-05","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 (888a38c73939…), 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.