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.

“Everything has improved significantly”

Checks (re-run on this request)

Proof data

Record hash (SHA-256)
39ccc6c80acc88cf100997c310382612a00fcfd5cc207d492c143682ccbb3354
Signature (Ed25519, base64)
1b8k3YAat7Za9wYcaLEjAmYTKjjBpqnw0DTTgGS1iv3MbYv2VcgoB9H/wr8prSCDf21Ah0fU+wdjrQ919ilXAA==
Merkle root
ab8d4de5853e13d360962f03dfb915842a42e1c5601cdaac4f2b37ad0ba96b78
Merkle path
["39d48af4246951b4b9c25fd71753098e8b753e3409919a829b72db6cc581bfbd","31db42a9e7e39832cf30a8f99e9645ca82643dc11c7fc6f3a725c01e7abdcc1e","3f80d7f7c0e54a7c8148751d439d18281041543efeb28ec256aed25fa9f1d3c9","99ea87f031144eeb38109907ce0eccdcfc37d10840b08aa41f20d7271c07ad8b","3d9b38c46a0942920a2989851609a6d3d25acbe9f6cb50ad35fa0334b1e6f474","5155ad4664eb43efa0212eb4f8354a3dc929434489d6b76c044ce3d9ece22333","48619a1fc6d846d0686f5e048cd1ce62241d8d61ac03ed308e960d4f40cd50e5","d765adbcca125f0fc42e25fadec6368d8f6c69ec42037abca08b7417c18c5485","b7ed357a2f861cfa4439fa0da15b1a7082c0bf3b24cdf3edd5532a4f203da6be","1103c0ab103b5b1382fddfc5ce479f2ba1e90fac5cf797b08905b48a31c8600c","694dade8b1c70cf6375187d8a50d78014918497c23b0bc8d629c1d68fec9267b","c211904b9171b5c272f5c1438c153a9b8b9a82a69b1c78717cb68f70f412c0fa","145b8339a2152137a5c533b9fee0b743027ca75044265351c444699ba891d42f","6b7938d0463f2b633e195d7021170023360849e40ff5e64ffe0633d28e084f81","90ac6c76618b09f3702b50a6410c80828bbcb4ead0d9d85dda294a654717f483"]
Anchored
2026-10-09
Public log entry
search.sigstore.dev, log index 3162293789 · entry 108e9186e8c5677af0ef…
Expected log hash
49c1b9c7cf9c0180248092c94f6cb48d5e59f6c65f471decaa61f120e90874ce 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":"v1791539611981","kind":"published-quote","locale":"en","page":"brand:fastmail","quote":"Everything has improved significantly","rating":5,"review_date":"2026-08-03","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 (ab8d4de5853e…), 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.