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)
16b3d091c676780abd4cabd2e54e33d466a0b31fd538ce4644021f3046a7a769
Signature (Ed25519, base64)
SmzBGsNy/vuImWtjeZeRZu9I9k4HinxpSILrCIE9yOW5eQydqZ8Hnt643Tp90Qqo43MNAhSxRAnrfjqoy3/mDw==
Merkle root
73035d63a23ff36f71b3b8034de0222181f7f0c7af5aea1690610c83e74c7d15
Merkle path
["16b107effd6db439d260ccd54c080d9d022e4150b681fe617bd3b6c9b0dcee6b","809bb2c7809c6bf44abac3a1368bbdd6101aae590d87351f70c90128bd812449","1a72435e410caa08be5ca39762c97440291f2667884aaa8fed1083b294cbce40","629314e1ee6925c635f33271e89eb9cb8650a3fe4de95cc537a65e7d18ea318b","eef09a74242f824217660b7b969ec51dce5db7d5ca08c7368d0eddd4b69c71fc","752afb621059b76b8154e1cebc3731ed7a6099a63068d5969e9ad056a4fad717","85a9caf7637bd782e88c371b37efdbedc066eed8cd0a2d6c54face23031fa33d","cbf06219a36a734bb4581e225dd0fdefe4e192714e9082aae0700157f37762e6","ba45f7d091d11995ab555e3936f4f540aab90a8868ee9e11159b588474708535","ba0830f9afb91b423ee20dbfea60c65bd667775a8a994d654dc071084c66454d","c80c33b01ad95e0a664a19eb547010a82387bd5a9df9337a3866b93eeeea3d5c","80e6b08429bdf8b1ea175f5e73973e6efc6b76bf6fe386623f81777d72899525","79f42a6faca7a25c904d908743f96835c8ea8dd4456f160fa4cadb988d234bba","34ec044b557bf42eeaf01343e2a0db0a8e40ba2304dd05f1507afdbc0f1ed40b","12edd9887d614b1b24bd84a0244281e77071c1e73791fd6b4a3ddf494952054a"]
Anchored
2026-08-24
Public log entry
search.sigstore.dev, log index 2579608108 · entry 108e9186e8c5677a67e4…
Expected log hash
daecf929d2558ff2044a636afcccfdcef28fb6ada4e0c06f09682a010a04fa65 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":"v1787541876852","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 (73035d63a23f…), 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.