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.

“No letters are displayed in the text field.”

Checks (re-run on this request)

Proof data

Record hash (SHA-256)
b205de27d9c1d5e541cc4dd104954b0b59d55ffba080f51bc2698e1477f01478
Signature (Ed25519, base64)
W+caeLyIZl3WtXSo9P9rYBXrPUzwZQAZ741voz5/Rjqc8a/AER0VUWJ7WcIFZV2oOuHaSCzvjbbBga0VlyK7Bg==
Merkle root
e299bf38720a5a91bdf63bbc0205245bccdf3432ab1652c69342549658b7a9ef
Merkle path
["b2065a973c41951f4c4f4e23c121ed014906010adda9f8b4f689b95e4c872b57","7a89b1b8777361fa16c17a89ebdc757e4f1ae770251e7573425b5f68b24b5106","7d9fcfec3210c2af0ca45c34192d6881e05baa0c0373d8b9bf0b2371376a2ade","5a77803c6f0eadca079fdd260f650d971c7100c0a8348f5c3b4c056a286f46fd","69592e150c3e332509f6049ba8f6209d18111852a2db6fc53d06d6da4717bb94","227630f14ce0a2f9fde050765193bf7f7202ee7a78095f7e3e3c686822c1e96b","e5adb8e373c522f0559aed1cbbb7794df0745cacfe3b4fee9c67b5fcd6a25cf6","55f43fb61ba6e36a5b43913339670fee86d21128d37cdbcc85c3e13c33ac28d0","1c631459a03859c2a8f16891e1efa88336cc5e0a6303fd95cdf572d0365bc99b","620413bf2476cd28d325605187d6aaba277996d6475a9bac38fff50da78fe34d","c5b7e137a8013a4a21c1d5b67afcd303b0734422cc0c2253880dfe8a42a53397","6c2612f525e9372e44b0deeb0737e4e68d621df2f62b7144b07119251a9b517c","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/ordering/en","quote":"No letters are displayed in the text field.","rating":1,"review_date":"2026-09-13","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.