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.

“The more I dove into Fastmail the more impressed I was.”

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)

69bda9cac870072ed0854ca81129bf4762bfb329ced452df925c1dbe672ca82e

Signature (Ed25519, base64)

f7Zs2pm9GpzLE06pLW4srxq9Cg+h2XJpVyWTI51VmVirawepcrYkpCnJtAaJCIsmAt7KwHF2eMIS4kx366l+Cw==

Merkle root

97eb1062a862b99998bef0a84476eb3c3812bb77c2cb927f4fd2933b59da9e3d

Merkle path

["69bb0bef303bd36ae9ad1c1b45473c7f789bfc817dd64bd6384ac42d54ac8f6c","9f1f4e3a5059b9ab89fa7883a99e9a4c358145a1974a7bf398635359ef6ea0e5","19bb92d0dcf3dc17ac5f18267759fad31572ae6c28b72ecdcc293cf5ff451de4","1143f326f36664884186206dd6f86688fa29c3e39696705d58180ad83af54c2b","aed338ed7b9e8a251afc6e3b41d84b7cd43e56d54c4bf320f93e5616a2c091f0","4e88173daea8c54784e1a462628d62c635246d762eadc4b87e199a756bb75f8a","98df82f1d25c8d974b557f70d696bfd1c8dcc4f7cf6f6bb075db9544ed1dccf3","e004f6b5d1714578eaccaa673f63b047b45aba3d7f6a8e7d2b28caa4a43ef70b","3ee58f476b550ff7fbeb7d3e53bff4da71b314b934051a7154299edd9bd2e513","bb7d2352b9ad7572c79d28fa1c5a98774667c0d1179bcac107008d310258e7da","a6ba2320bebdb525294e32051203a108db199dafa5e32fdd427ef9ada1bf92a4","cc930d9a14ea152753caf04b31f0e79f0b00ba63dec8c58c38ded3f85cfd7dad","66d13e8b5300f6cf7ae49f9f9692863758845bb98773f7a2bbb28032eed5ad1c","90e3c3ed08ff9f4dee6683cf95bfff311f4715cac07e97ca75ea5b9bcf13efe4","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:fastmail/quality/en","quote":"The more I dove into Fastmail the more impressed I was.","rating":5,"review_date":"2026-08-13","source":"Trustpilot","source_url":"https://www.trustpilot.com/reviews/6a7e32db198bd10357e8a74a","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.