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.
“I have been using the free version of Tuta, formerly Tutanota, for at least 5 years now without any issues!”
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 2789279696
Proof data
- Record hash (SHA-256)
f8ebcf2fb3c722005f81763d76ebb3de5d15a945bdf46af7695d1d70ed347477- Signature (Ed25519, base64)
4svT8l63FF6S3kk0I/71YeIUH7BxE1RGkRpO1NXjXzS1B01tD156FdCSNZZW9YzUvw+tmrWI9ZwRVJe+u9xXCw==- Merkle root
97eb1062a862b99998bef0a84476eb3c3812bb77c2cb927f4fd2933b59da9e3d- Merkle path
["f8e5530a1a5562764a8f07a89ade0ab01f0c6437f1a5f3bbbf3782710e515519","92e92fb4251d29a5f6caf029d51ad82d1881679226f589dc486d59fd7184972c","3190887262d80c93e7b98c0c89ccb115e5141a8b7b7cfc2caf3e6d9d08fa9edc","e60000ce5cbce3073cddcb1bf01911a9089c46f8a0cd932df00f97a667662cfd","f1543a54f5d317e4a61075183834f23470584fe87c24d890fff51507fef72a88","0399ad8906e2bc4b791f6cf861f0d1ad8268ca8522096553eb3023e616e6eb75","ed6addb53832ec0a8ce1bad0a7bdbde546f834da10d5c99bcdfa83c51c48af27","fef413fc931091cfa9e21511064f10426108e148a06de7fe982dab007e11a42b","9d1832aa9b2f62ef6c587baf7091aed3747dd9015affef510720bec9c1be2970","20a92e937db51769cfe465589dd0a1473d93b484d02c40ded866c356209687ec","2773f567c680d36b45e8ddb9acbba84279386972ec0e40784af0d4b71e825e3c","da7efc44d6047fe3e579eca002977ed1346adde2d400823603e9388f5b72eb53","46bcfbc656e0e2a380a8a94cdc0be3d8b4c668e5f9e54a10ba396a45b371339b"]- Anchored
- 2026-09-11
- Public log entry
-
search.sigstore.dev, log index 2789279696 · entry
108e9186e8c5677a3885… - Expected log hash
-
05c7009ecf7ce5cf315c252c2a1dd135e64989a02cacdaaa3c5a87412a2e921cThe log entry'sspec.data.hash.valuemust equal this value: the SHA-256 of the Merkle root string above. Recompute it yourself from the root to confirm. - Canonical record
{"dataset_version":"v1789017464005","kind":"published-quote","locale":"en","page":"theme:tuta/durability/en","quote":"I have been using the free version of Tuta, formerly Tutanota, for at least 5 years now without any issues!","rating":5,"review_date":"2025-07-26","source":"Apple App Store","source_url":"https://apps.apple.com/fr/app/id922429609?see-all=reviews","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.valuewith the "Expected log hash" above: it is the SHA-256 of the Merkle root string (97eb1062a862…), which ties this proof's root to the log entry. -
Decode
spec.signature.publicKey.contentfrom base64: it must equal Citatio's published key at /.well-known/citatio-signing.json. -
The entry's
integratedTimeis 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.