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.

“The cancellation process is not transparent!”

Checks (re-run on this request)

Proof data

Record hash (SHA-256)
9538c9b0cd0e85b0ac4fa8f45ebcf5c7eebfb026bd02a0646e42f9775c79133d
Signature (Ed25519, base64)
VmVNU6G/AfaCMrc0OvaQUNWuwJ+O579s9D/s+THAjRNoMT2oJiwQPLO0W/+beUPsSm1oZZxTIh2HR35R5M2SCw==
Merkle root
e299bf38720a5a91bdf63bbc0205245bccdf3432ab1652c69342549658b7a9ef
Merkle path
["953620483afb692ca54773a269797083900fe0b52038e33bde69a73758e4006e","216bfa320cf38233390ebcb7084794a3739d8dc31279f69bab955de9b289fa9c","d514fb0b274cf09c827582d60e053e7ed721e99ca60e5c281e6df5b21af1e986","bc4ada43342b729287caed3c8af5e094e012daf931d8ff2bd01e1848ae182100","7f446d84d72f4f2c724aae9d48e42cb893f9eb9876e0cee5b8f8391c15c087ad","f2dd1aa1ec46499a88b6f8c2315e04282b5e324653a90557e717fcf1bd1f8b80","d89e1e72888d6dd8a72fe3a278cd2d087fe8433c4eb2244005033d8d10ffd2ae","215686fc4695d2a872d5c9c1f768afef25e9b507a2532071d900cd986302c5ba","3e43710d5a589e0614b4165c616563cb62232965ba047d55cbd1bdd463a401a1","1a8d9e567730bcac77332919af77c31fb7a261eeff68bdd4a9900a8fbddef61b","808361c2cc11d1d62da97f81cb8537cc3a8a9e7c2b553285d63cecf18a95be4f","81ae0d98613af401743ec4987802323d53d8fda24ce374cdf2d369d04f6e8e3d","b5d03b72964f911025dbd61c2eea673598b47768b7619e9a279966a44a138147","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/communication/en","quote":"The cancellation process is not transparent!","rating":1,"review_date":"2026-02-11","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.