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.

“Very useful and essential.”

Checks (re-run on this request)

Proof data

Record hash (SHA-256)
64ba63d1002ea3029d7381235fd821a1f7c51f48a73ab15c2412f558a316027f
Signature (Ed25519, base64)
vNqJDEUYAyMVuj3wFzRFk2CpkDLYZK/44eaxChOFtP0q49XF8FG24eA4iToVqZ8IcIPbBKyNJ6Gn5ZHwJlM0AQ==
Merkle root
aacc11945f125ee3fcdef86ba030016c440bcc608f4e51f0ffffdb4cdc5e9321
Merkle path
["64c6ff4363bd7fe93d69480c407c9e1c8be930783cb54955cdeee748d0ebc8b4","a54a64fd4ef3168bb5b609d782f3a2ff3e557415fe3f3630d8476e3a2552f38e","cc24831521d36b7a1ed7ab9d1093f9c9a97ed8f25fbb526a1dfb89b0e8d73f47","c5bdc710a9f066d269f64ab8a2dc70b67c2bdb2794844f187406571ac578e733","0bb4f7d8627a161956043a6bedca9d99e8f8ba53468e51e9b7b02d09d2cefe15","2715e0be6151e1857c39d678e9bfb237ce5aef9ab622baf946999168129f608c","3c54a634a8163988982f63844752c73b681dee4c46ed33524c26ae42a0bda6a5","d65201294060d7d96204021a9e1d7454b60ffbb082e7c7a0e6963cde5641903c","dab2e89fc4ae2592f48ea1c228714f277c74c2da5c15fb6723b603c29c42a4d5","590b75a206d93de9a03dadcd24e5524db77b67bf901908a5f2523c3b2193a1b6","02a5ea4f3197332385fe41072b523becd1651e68a5ab126f089fa99ed22d0ad9","10417bf8400d993dc5bc51fcb3c27f6a0c34b723944b9a3d537122bb9e0d2970","a67383a47457a5cf1d5e37868e4ed4249ae6b4ada373e7ec00eea3b30391affe","b1c6c1169310bc9b3706487a8b54e13d2c5256c24253b48b4df6440bd230af21","2309962142b16600f7fc4d57273f3042f382acb91be89aac7f00112f61b58f1d"]
Anchored
2026-08-21
Public log entry
search.sigstore.dev, log index 2543547848 · entry 108e9186e8c5677a921a…
Expected log hash
bb93f13ee7a4a636e28586b842e19662b148eb18166a89b3ae7d189bb8e81689 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":"v1787286345433","kind":"published-quote","locale":"en","page":"theme:acrobat/quality/en","quote":"Very useful and essential.","rating":4,"review_date":"2026-08-12","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.adobe.reader","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 (aacc11945f12…), 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.