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 3666503969

Proof data

Record hash (SHA-256)

25cc3f0e84fff6c74bbe37601e5f96acf7a92d135a9dfcc7d602a19cfbbb78fa

Signature (Ed25519, base64)

b2UYzv2hiBlmTvZY/W0Q2oTkJ4fwfEz7Gqmi0/CQ93xRHWfYUHIhZzl1LX6uI3CTNrwyCb9yfwolXx04JH4CAQ==

Merkle root

7fcf639a7573b11c0c63296f1f4cad9d82711469135561c27b140b3f8cf0f233

Merkle path

["25dcf9f1e3da9a84bd0052c06653a36a9d91c30a7594abad5e9d03689ccfaf4e","8b1e96b4b073d8ea00c90e836a62b4fccb282037c40b1df4a5458df1c13dc195","649cd225e39b7f59d8bd243a60ab4f5ac54f14532a669335b0146e1ca678f777","0f570f5937743418307f7033ebce1bbf7872ab287876b0a6f059f9a286c1e971","01ad9761e3683a9feb1da59668af4ee165751dd5eb3faedded4e593f1b7c5a30","c7ce9252953dbb0fe5dd30f307c582eb28e285a10d33ee6d1dee2de0a662b66f","ab1d5fae0efd700f6aa3f0179796d0529f87e23bf74cf2313e53354d7a2930e5","82170f069cbb8a377f24221c8537e5b1a88f4d7ae4671877040ac14709476ccf","d02576db4d4a6af5c37fcd99d9f525899de7fe3870654a36a4d7f505bad4696a","67d20916537e1aa9e11e3665f795285c6103e3834a9eb7ff96aa9569497288e6","eb1574e039788808fb635d775b09b1fb2a130b16ab595700e84cd960c84d151d","c4613c89731736364f3f3856f24ef3babe183ce20545df5fbb70ac024301ebc7","b978843be08c52cb951ca064b6ce98b7a05b3bb460ac7b4bd5d1657a0d8a155a"]

Anchored

2026-11-03

Public log entry

search.sigstore.dev, log index 3666503969 · entry 108e9186e8c5677a89d4…

Expected log hash

8f203023a4c26e044b3b27e73dbe1466d2f19b715af45abb5c7e82ddfacac0ea 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":"v1793701411816","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 (7fcf639a7573…), 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.