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.

“It's fast, thanks to JMAP instead of IMAP as the protocol.”

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 3126883925

Proof data

Record hash (SHA-256)

b7c20a403ed749b72dcdd4ea6cc00e98b9c63c6f3fd51dffb32f08bab113e5cb

Signature (Ed25519, base64)

lsXwaAy30120Xx4RFpQZhlmFUAqR9F1h/OEqvbr7Q9tvcZfzhl5eR5AJwwIEg2m3lq1f6Ow/pBz59rei5GTSAQ==

Merkle root

0d7fec37eb7aa7ca022c461398d36283692153bdca7d5292b2302abb6878e5f6

Merkle path

["b7d13fae622462901b3d92a4b4c9e42bf8b67611f17a8ac2cc7fcfef199cf9cf","f44a2b2aeba269655d6f1b74ee335ded6f57e5268d6552d825e7402c7fc5c56c","b264f50f60de54426644c800a4cc71957bcba306aa04010915093eb83d7f85dd","0748f906e2863df556050b90250f18251673c8198fb337e8b6c649ff9b209260","0d5770ca5c12e57142930f168e6b276bfc1c33a1a0206584764cd14a2e5b1403","5d748d400e6c6a88e19c349fd5cc804f7e466f690f894ffc1f5d7f7fc156b3b2","e775679113c0b2cfec3801bace7915408967ce50937653c57f9b8f3b4b895dcf","76095a8697ba187f53ca51b9d1ee0545cbae20148981fe00f18a2f8c4742d0fa","8ebfc6f66872b6f84a6f81e9a7d2ed9fb4c3185cdc965e512779c80f53e8bd56","cc5dfa5dccdc424d06388e4358b14b8fc8aebe66a23dfe1226728d6cbb59fe7f","9be20dfed118b7180b9822866de4ef17b82d7fdaa3e9f992e92123cb7fa06280","bf39fb757ac8694cba9dc17c7c6f275a66be1413c489fe2b09a1d845d2c7826c","bdcf570fa2da5e994ffb4f34cf05db9f32b033b05ffdf1ce5c8460f03ab0a63e","78493a36337086a989f7fe7acb90e0c5d108a90e56256076af924a0d68310165","8c6d73d3d8b42a55077d4061fe37663a0906972431ecb9eb374f1f8461206839"]

Anchored

2026-10-07

Public log entry

search.sigstore.dev, log index 3126883925 · entry 108e9186e8c5677a6678…

Expected log hash

7790667e260445bf729ea3061132c2116b163a0e0b944eca343c9e8408350ef6 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":"v1791359818972","kind":"published-quote","locale":"en","page":"brand:fastmail","quote":"It's fast, thanks to JMAP instead of IMAP as the protocol.","rating":5,"review_date":"2026-08-12","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 (0d7fec37eb7a…), 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.