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.

“I'm almost mad that Fastmail is so good”

Checks (re-run on this request)

Proof data

Record hash (SHA-256)
b47c9d1ce54075854d9f6853e608d12911409ee1829a82347f084dd75e99b587
Signature (Ed25519, base64)
OiafAFd8JfzI4I/COTKKLxuQJMeQp900iedxu13Cv3gW7PrhpUNL96S00wspssVKktgy8EELUpPJNuP93fvbBA==
Merkle root
97eb1062a862b99998bef0a84476eb3c3812bb77c2cb927f4fd2933b59da9e3d
Merkle path
["b47c5893770bbe76a8469bd56541d26acded1b9499c7caefcdf143ef122ada73","f3fb9c157a2d319f9a0e5dec1f087f8eb193e21a7a3a937773b7620b065ab4f4","2aed25cb92b3b4a637f821d579af29395a339b5812a30eef9446372f54576ef3","2bfb2f1222efe0951560b304e106280f03ea4d7a61590a670267bf69caeff8a0","32bf7a2040a4d5cf28b9ebc99d96bd3c71c3cd8e9960302a266f6c6529a91b4c","3d02d0b46002bace3f6f7acd1e6a4d4ab79e81f6d78dcacafd71daf65139d87e","fd66d2b2de7489772daa119d614b56e8c284d447ff7ef2943f0007614c3c6cfa","a765b97aae2ccfaf236614d87166b8c37ed1006fafc13e2aaedd74155375cea6","b2a895cb4f6c287ad1376d25e4e4fa35c3aad2652195c6fe3b8f8a7ab394894b","b9317258ac8c553541984791be6cfb16900267dd0641462194de3adb86ac3621","46b9b279b944ab74dcd8719347239c10a7c86b6f847fbc5b238defdb13a666d3","f331b9b7b0f816973fc5999e2ac6d8d10c8908961884acb0adfaef58ea6e81a0","054c6c39d1f97397366b9a1b659a373f0607ed1b3f28fe998d444aa71461fa00","fb01c9b29e184d558c43a512ba05af475ec20eceeace4dde365559da92299892","46bcfbc656e0e2a380a8a94cdc0be3d8b4c668e5f9e54a10ba396a45b371339b"]
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":"I'm almost mad that Fastmail is so good","rating":5,"review_date":"2026-08-25","source":"Apple App Store","source_url":"https://apps.apple.com/us/app/id931370077?see-all=reviews","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.