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.

“unjust and malicious, as I have the cancellation receipt”

Checks (re-run on this request)

Proof data

Record hash (SHA-256)
cfb858df57a19d1d486680224b1e9e5de4e019b5b103d8d7d092ff0ebbfcb9bc
Signature (Ed25519, base64)
dpPu9LrZsp/AP/ke2Wm8qCHiZah7BEgeQrz73XkJRo6gXJfbsNRX+Jn3kqecsFtdgFLLhGIW9rfEV6gJpWZOAA==
Merkle root
e299bf38720a5a91bdf63bbc0205245bccdf3432ab1652c69342549658b7a9ef
Merkle path
["cfb86291f7021ce71ff3d0516e3c2e9ef9b543fc0754213aa471ed9ad94f147f","2692c0114e71aa1d569c2a690985cb1db8a307618b83053a43cee5b5b283a884","af772012de0f8ec3755372436d3a7116799f3cc671eddf37c293a2e42a661e1d","1f1f90fde257aafdc0eaa59ba481b3169785d08ba28867ad23e6968c381b309c","9315937acebd22c991f35e298635123c21f0099ee9c11c800cee307182f48e36","d752831a672b7f04b0a5ac20627f59e214849f239c57c1cc7833e6e7399fd099","c8b607fe07655c9ea94618c25a18e5fdf42e5a23daf28b835d16b0cdcfd50fd8","eb833bfee450cc13da107628dbddf8b16a3082f5175d96467cf70bb6f0e67304","ad742d3b371cb3b5d6267a670df6b9414ae8842c95abaec1548ed6fc78821c36","610534309bbd1bfa5793fabc1254f8e9ff0f3706e20effd4937239e7376cad5d","f88be881ea062cb0d1c908f07c2bc25877d657079958d9ee97dfeb71a5747da7","bf08a7b70abd12d7b26586897b736d1c0404f066aa427e277708a875f0cb6bcb","06f94171d32c86f72a9e1d984f2a7c3fa7bd9f00a98eabaa3fbd7d57db71aaf2","e3714293de39ce3c6e3cb9d5ea7711343b19d2be532c75504682d8ef52e8f91e","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/billing/en","quote":"unjust and malicious, as I have the cancellation receipt","rating":1,"review_date":"2026-02-26","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.