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.

“Diese App ist wirklich klasse.”

Checks (re-run on this request)

Proof data

Record hash (SHA-256)
42a93de6dde2086e4e91c44b725b89f0e2a883b0ee5fa87282729a3767081d9a
Signature (Ed25519, base64)
vVFs0/fOEXv2cYtz99dD0b1dX6OM1UKrowANF5uK8tz+LDMsIhUZlJcNURmlhem44Mw+gpJ8euF2F+XjvcH2AA==
Merkle root
79268b3be1e951447ad916daa23d94d3a225505999279adfec84e5728be030d6
Merkle path
["42a8e84e8f4429a3aa50dca8879051ae04e212580fdd5123383a4dee90b40844","2cafe40bc6aaa2b9a1e9c6c6701856c262d965600eee317ee6938b6ca466f559","b21b6b8946fc10f692575fefebc6543cc55dc10915d27f15d9513681a752747f","b537ee0c1f73829726e910269bc0a53095344016f9e5e2b77955017a96de4933","914c2611d1fda8689e956aaf195d0123dc62b0f318608c9d21d05daec7e46f1a","988db77e74c6a93297390c960c28c2be99fc056c3164bbaefe5753eb18ce7cca","49e08896b3a07ed72d9c6021339be4b04eae155a5920ed79982626018b174a2a","8cc4e42d55974f9dadf0bc667443e828739ea10965b59b543b5ef8cda6d50df8","e7fc8d06a36627d0b375ec8fcf464464f442d253ff740da8f1a25d689fbc6f94","8c7c9301d2254297c3fa375a0062b11199a56fb089d7f83bedf4063f9ad3d2d9","fa7d3c74616b449fcf1d93e58af28e7cefc9e07a2788ee9f99d020157c788ac8","67489a45554ca41db9207c6fc4b13fba605b6cd66618be3880218bae3c1e199b","1ce9afad9ad086057c7bfc40a44d07199e0e2fbe95565fbb52e4e14d796716a0","b8e0a41590cdecf5ee846d5a4dcd3ae91c8a0a052b75fffe7c4c5f4e2ca53884"]
Anchored
2026-10-11
Public log entry
search.sigstore.dev, log index 3199014646 · entry 108e9186e8c5677a77ce…
Expected log hash
55430b734e4d00e4ba9c340c7ab064436f91281dd4cbc27c1ffc37d3e26a0e3e 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":"v1791688566698","kind":"published-quote","locale":"de","page":"brand:vaia","quote":"Diese App ist wirklich klasse.","rating":5,"review_date":"2026-05-08","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 (79268b3be1e9…), 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.