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 just downloaded the app.”

Checks (re-run on this request)

Proof data

Record hash (SHA-256)
f7b95ebd89a566b5eedaee51b326764a062d99f7efbf92e182f743c4fc415082
Signature (Ed25519, base64)
npWLKrQSQFt/5FsM2s11mvfMSzM2xyK59mjbnipvzWzg04C5x81N47YW3TQsRNpIFXwbVXTTMU+H0L6qCdXJDg==
Merkle root
e299bf38720a5a91bdf63bbc0205245bccdf3432ab1652c69342549658b7a9ef
Merkle path
["f7bbd58a3a03a577251b92014bde488e3983fac6969f30200ff1c5f7050be317","beebba94476c8d86a5a06753adf7cced8240503c95e0d0e510c725d85b023bb9","351509da65d2c4fea42cdb8fe8ba334a94cdfa01b21b773bd62614af3d9dfbbe","0db805bf4d4ee9ce6d532e4ffeaa8073b2255e29366681757a976ab2eb3be809","d9fe00d1e2be2e80363f048428d411830f7c0a51fba57d2397982420328a2566","5993801beb17ba53839c8676b7ed0e5e479e95567875150f0e6c115f7794c2ae","a3127b846056c105eb3b1c0f88ca968c14343da7c3b4391a7879675a8ee6cb3d","dbef9b435d4657ce03cff00648367595f0a9ba2ff4afe8ac8ee5a63cd805f049","c32667d1bfc066d649b21b9975c56f5721e4d0e8582ea3528b368b0736dab21c","a52e1c5235962042ecdf6bbef0d4db003a996786fa4b692948dfb4ac38e552ed","a3cd6a309f10748c6992d7d249a79b7e2e2669fa48a49dd673039acab527d8fa","b382aebc31acbad71afb3ae06e4e6f9b354e9da57050f36d03bb1ef97dab503a","f95e3a68f572f5650a4093453e2bf28168547fa91a01ce08e539b3d7016a3f80","53a8a23597d45564e495678bf6125e41ef42f347693c924494330dab53ea1e2d","2a462314156907e42d6f0d96eed96123f1d79516aef73ed189d9f5466556b638"]
Anchored
2026-09-21
Public log entry
search.sigstore.dev, log index 2904877428 · entry 108e9186e8c5677ab408…
Expected log hash
d020708737f55ccdf49203f373fcbcefe8158cc388605556fbfda3c365de7360 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":"v1789881486272","kind":"published-quote","locale":"en","page":"theme:vaia/delivery/en","quote":"I just downloaded the app.","rating":5,"review_date":"2026-03-29","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.studysmarter","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 (e299bf38720a…), 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.