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 released offline functionality for the mobile app”

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)

60b4018688faa9da208d17aab9537b440b7e8856a24d305ef3238e760e3bc563

Signature (Ed25519, base64)

p/2mMgrxTNO9CmwhsgD5wvrdLC9itTH/oeKwEUaujhwlXIOgXRL2k7SnbXaZUWmZxPwbJROCu/EA0b7OVSY7Dg==

Merkle root

97eb1062a862b99998bef0a84476eb3c3812bb77c2cb927f4fd2933b59da9e3d

Merkle path

["60b18cd2f94ffbbb987138042150552b7dee7fff215bf7b552c67ce3aab71665","275ecc9f38e35384ad8087a69caecd2229108f60b3aad04c0ce2173e0479c568","13ba3b2a2ad2bd417a82407501a558a96ee66e46a465d74c689bcd83a09e58e1","823b0d3dd01bc56a85c689cb4c26488cf0b305350a78c7aff16cd9130ce02f76","070b709d6613fecbb0b13b6d7528e393bc3cc7d676f4012dbad0f3b0f1b670bb","574b90faf51d91441fea84fac29cf552b878419db74c9c5756d347052ec3b548","622e1be5f5619f851893e6357f2778b3f81bebcc774815f2112fe9f899b2029e","885430b8baa5d2c3cf97705a821726dad2361dac76dcf1b587f22b8bd2ee88b9","8595ba8fc169805f12f53c832f1ec9de3374fd0ddb0d3ce4e30d8331541d4878","4c2af23fb12c5d6a450127251aa43eca70b40c3d6f6293167efb30c5276a9227","2196f217748a850eaa5fabc558b411155d5e5a90e74d5991bb7a1bd20efe4d14","36283db7bcf119c11be277705ea4507f983056a8ea68a309c763a3cc8b414991","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/delivery/en","quote":"the released offline functionality for the mobile app","rating":5,"review_date":"2026-03-13","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.