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.

“nobody at FastMail cares and they still brag about their business email support”

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)

74364db47317830ded9d4de76502ee13c306542cbc11bcbc9734fc2e212de8f9

Signature (Ed25519, base64)

npiNQnxhTq+0bMOHQoq3h6xrI249uzgSQ/e/J0jXNS05VVihp72wj+kZeQdFKZi6AgGtoRAXWj8CSdMbsSZIAw==

Merkle root

97eb1062a862b99998bef0a84476eb3c3812bb77c2cb927f4fd2933b59da9e3d

Merkle path

["7439aa97a3c2712638c0db912f419a7c6ee603a2eb13aac00afb81daffb5022b","e711cd5d1327d58b19be08cccebbcc191d0cebf56770a82ceefe3722d0c85e98","b91cb42967c26ef13faad6d9f329f8da84bf197aba7dfa7dd4450c9820b1cfe5","ae2eff66ba68312aa20fd9577966b3cedc7c432da1cde507f6fa7de4567e1bbf","6d39168178653f2474224462b675bc02aa387cfa6f9cb5c024c2d80075daf73f","58f560c5ece9f88e64da25127b57df36e094990820f8a495c4551d902da8db5d","228d24accb8521c7054097b1db6de72f97bf3b2c0f324007cecb0744fff02e81","b84ae152c33980f6a15377e00c4b9aa7b049c3be67a9b57c75412bb1b7cbab65","7862cdb7be8d7018b4996944f0488a828dda7f184584bb8444dbe5f42306542c","e744619e83a49db37b70bf05caea63c980ba94de213475076734b7c31f2c6118","af29131d06cf5d38c81cf1b17bfc06e6e5720db0c8182d9166073999fd5b8a6c","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/service/en","quote":"nobody at FastMail cares and they still brag about their business email support","rating":4,"review_date":"2026-07-02","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.fastmail.app","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.