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.

“They offer a masked email service but if you actually use it they will SUSPEND YOUR ACCOUNT!”

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 3220367991

Proof data

Record hash (SHA-256)

527e4da6faa09206215c5e2fe8a6e2c628f0ac6eecf00b155a1072987e0bf188

Signature (Ed25519, base64)

6Mj/oHTnGUssInApQJUskDqBwWwPw8bv8qUO+F6Z9d6Dp2FxEggboYYn2h2rpp8W/vO5IvGAFQxUbTKiyC48Dw==

Merkle root

8e481f891fa4a8f9e77c0279ca152fab4383b65a50decc840d9fd7569bdfbaa3

Merkle path

["528079e336521a42e85b177ee1c4728532485fc22ee64fc5055a32fc66bf90d0","83aa8310069fe02cfec1d1b2097c3d09dc9f0d295ec9e7f1bf6cc52bb411129a","c7b2feedba3de94f3a1a38d33a8287f984453f2a8d9eae59a1a52b45ce37bb4e","2a612eec20c94fdc3570f153d80518be870759911e09ec0a73f4faeddf90d138","3b08ff82240b74669be090e472e18a4864e5562a48c7e3e93241f923752a70f5","c430f3ff0e7c042154bdb871bc480104a1c1bbce4baa9f96627a2d788255adb8","c2627803220cfe6476bbb06fc69c260459373343479667d773e259eda84ec170","4d6ddb2e00744daea6f8de56b66ddeaf77c97d88bb6f7f7275118a01199548d0","78913e22bc500b8644a526493f1c1c01c3a40faf0ed3c39aa1e4aea18e3625f1","4534f74f7ea74231e7e4a7114d1b60e122b252d33b1ce6d93bca340305b1c2c5","b0d19eb198ae92cef79ff7b06a3ab9a6d60fdb5502f9f4962c90f48d23c66b88","3b4f21b826cbea2d43ed04a02447fd6a5c5177bac5ab8f0646d2865e69ab2bc2","a8a51e6cf51feca9c73f59ef001af57f41b1cec2b5f25963206b5df2878ba531","391099ea13ca712ab4d3c0ebed9ae37f021122ce33d031a4f3442fcba2038ec0"]

Anchored

2026-10-12

Public log entry

search.sigstore.dev, log index 3220367991 · entry 108e9186e8c5677a60ce…

Expected log hash

9a2b3ddad9c3b29dc171a15554fc81f3d4710c01a7565bd2f28b92e7b639f6dd 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":"v1791776812348","kind":"published-quote","locale":"en","page":"brand:fastmail","quote":"They offer a masked email service but if you actually use it they will SUSPEND YOUR ACCOUNT!","rating":1,"review_date":"2026-06-29","source":"Trustpilot","source_url":"https://www.trustpilot.com/reviews/6a426ea59b3eae79d42a07c5","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 (8e481f891fa4…), 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.