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.

“Tuta is the best privacy-focused email provider.”

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)

337febee11cd2477ffa976fcc62b9dfc9407ad361f82c3bf14a0943f559066fb

Signature (Ed25519, base64)

+HMo0+o/Y5KP+W5fdPaTsQJ/Ge5oaS13qFfD1oFytGIQF7NVXLzHoG+rd2fTDnAv0kNQ2EesxR3EcKB4Dl7BAw==

Merkle root

97eb1062a862b99998bef0a84476eb3c3812bb77c2cb927f4fd2933b59da9e3d

Merkle path

["337bc66719816315637ecf39ea2058ce6d39a5265a437e9b4ed08c683f45808f","152d95a6f3afc93bb4913f158ccaf9e0b1a86221e5a5be7f3a342e648113c3cf","6b4e5071178316bbea228244f306e97213c649198c4e7effc7cf577de2a504ee","40bb6e953f68f26ba9c6cda0604336da3b6140dbdaf5ec6bb89da4855ba21091","14750e31bb03d01a3a48b60f8619bdb0a549931f37f3421b6de280c9f1c33e35","0ce3eb28c391653cc8ef8b2b1441f08f98f0b57c03dd3a1a813ea9c0da4646ce","44a7fbc418b5533b6141b83a6e959c7429d19850b24a51db80053d33c6dc2d3e","9dcef63e5d6251e6b11964516f2c561bd6349af3f6b632a54bb5b70b5ea257fe","7a894232238f1bd378d5a0f75ef78275ff7c326be0f8245819fcb60b3625499f","aaedbf1faef8b71818405fbbf49f0e69ca532fb562a9337eb9aa9c179d9b334a","4ad681b2b161baeeaac06e025dd3e2569324b50388a8ccfbe6ef45b197a8542e","c3f635ba717eeeb5ba2ef9ddb3d4150c23b49c53fc05a76fef371e9ad8330b6f","b2cde2091952330dc6d7773f9467df58d2e8463851174cad44d4f743c8f8617f","a9559f2ca8536f2c18bf059f3f0099d62235a93ac35dc17b09967d392b72be7f","01242865574478f13dcf9d888236d7a907264abdb87f360db7db06de0945075a"]

Anchored

2026-09-11

Public log entry

search.sigstore.dev, log index 2789279696 · entry 108e9186e8c5677a3885…

Expected log hash

05c7009ecf7ce5cf315c252c2a1dd135e64989a02cacdaaa3c5a87412a2e921c 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":"v1789017464005","kind":"published-quote","locale":"en","page":"theme:tuta/quality/en","quote":"Tuta is the best privacy-focused email provider.","rating":5,"review_date":"2026-09-10","source":"Trustpilot","source_url":"https://www.trustpilot.com/reviews/6aa1e47de238b2c6602bcd40","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 (97eb1062a862…), 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.