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 prefer it to the GMail app which I also use.”

Checks (re-run on this request)

Proof data

Record hash (SHA-256)
8ab1ad2139291d82fa58663a52470ded37e999dc06a55d45043de31afd02522a
Signature (Ed25519, base64)
NW1ALxeqUbZakf2s3kGcHaD0HhJIeMNflWXMcPChtQ/fj7cG67JvUJ5UhLe/Nuy+ZP1TjjG4IJGdAh7G9JmAAA==
Merkle root
f2dea3193623a59d18b4d230cf1484689c024b05d34648a4bedfef78c47360d2
Merkle path
["8ab8f7ea4251c2fc96afcd0d787093229413053c6cb7782b1c8644d3787eea4a","c8082994c7fbe049aad503ece07f44b25cb81868d60d1f1e1e64209070be8165","181903e612aa98059129c6036879cc1e540afbbb0dea3227a1483aa8cb42e1a8","7826a9fa50ba787e84ae264c3c9d7ba040af1850f0b5146dafa66576b463ef6d","3ed7596630bc0432e413268d736a96a4834c56960d23087b909907d8f6562d8e","be3689259dc91cff8ee3966b59b41cb77595d4d88f4ce3f697520ad70291d4b9","5f5f34775516fa32d2b31a44de00b771b05c044e3cfd7962a739d821b8221a4a","f9a1cfe792180d13023ec41732ff03000df3960d8d7a6a6653460875bc5dcb51","79f6836b0c5d2df3a86c3d50590557f0f5f3819a96dace579eea26367cc65918","98c3f208b24516248478a76edcc8c6c387429840ed8db55f2de5b32e97f949cd","91f3680538a85091e781dbb89568c2bc4963bd1dfd6875550a803979fd229668","3dce281ca0e614b1dda8d0ed670db8d11da28ca67738915db89014b853040875","d5b457cbd06c72c301c050bbc18735716496080f1e92d458625264f50eafefeb","3cd750b45485739a93e8e5963aebbe2dbf3f2cd6fcfd5ac889ea2792f103cfff","658fda4333b0a975ae51c0ef52c37c157029d897878579fb5ff3ac48198b1bf3"]
Anchored
2026-10-09
Public log entry
search.sigstore.dev, log index 3163461995 · entry 108e9186e8c5677acea0…
Expected log hash
1e385e1035f15f3dbe860bb8f3e4e850b8c2ce2b31edb58c97be626995a4adf2 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":"v1791544610158","kind":"published-quote","locale":"en","page":"brand:fastmail","quote":"I prefer it to the GMail app which I also use.","rating":5,"review_date":"2026-09-04","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 (f2dea3193623…), 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.