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.

“in dem Schriftfeld werden keine Buchstaben angezeigt”

Checks (re-run on this request)

• ✓ Signature — Ed25519 signature over the record hash, verified against the public key at /.well-known/citatio-signing.json
• ✓ Merkle inclusion — Leaf recomputed through the sibling path to the anchored root
• ✓ Public transparency log — Sigstore Rekor log index 3178600936

Proof data

Record hash (SHA-256)

2622fcb8679ee7c8d6d9c8c3dc75dfd7746450a0247d74e8c09605c654ecc29e

Signature (Ed25519, base64)

zllkjfLKCmUqKn27nh1fygVYb0ivNPkBfQ8/yYqnevtbjYQSR4KGx7qLkUQvMTCCWUgYNmxq4qmhWhjIriGeCg==

Merkle root

eee462924587f8024361bc8d60043805cf5210f8bd2ef7667df06d093552f9e6

Merkle path

["26234bacc542b49c5cf63ab9b595be1cb44ae18b0ba6f8d84f07c16f84787d4c","a9858d2c82596074f21256d6174a71a1708ae0770fb34348d604450af6b02b0c","afe13064ebc3cc4b0834c5636a4e20fddf27f5262adda28d1ccf1007bd711328","5eb5361ab45ddd8422fcfae7e6e79bdae9264ca106960e9d4f3fb1961b977506","79105f3b177d272b94770308a74edd4b0f207754c6912f61d66a4afc4ff03829","cf1866be6f154e8a7b5e6e2fae4e7aa359c6ac1a09042a9910dbd8053a78ca86","b30cd1ed8a70deeba3e08b84d7f5efd00b14e57922f50ae473673e72dc7fec11","6af81b8b3e6d73509698c071f1b5c9cc2295c9622184988b846a80c7d035778e","24a9a758a8341171b40beb8a70eb23059b16518dd33c23560a73a76c2b4d79aa","c32baae29025ebd8bbebd4d2913e8b15582d3ac308e6bc08000959705d0984a8","6c1510ff4366f01d9f3cf2782dde2248f86be32b568472e8b059185422448170","5a28204f9372278679ccf6b3ebe28cb3da342cbf292d2015dc590fde73763288","2671ebca141255a0c11a3bc51354d8cd008634f7e59a58a3f3f9dc756141bb9c","a445a39a48770a8fbc5d87a405ed660d401fa810eac6fbd1d284a96f8c7d5503","452f4fcbca19997a15e6a6869c50e026ff02cb90a6ef21da106ee0457e55941a"]

Anchored

2026-10-10

Public log entry

search.sigstore.dev, log index 3178600936 · entry 108e9186e8c5677a6a91…

Expected log hash

f3dccf508afcb5e89d56dabc8c5aead85de215b1b896d057d463ea1c1bdb13a3 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":"v1791606586319","kind":"published-quote","locale":"de","page":"brand:vaia","quote":"in dem Schriftfeld werden keine Buchstaben angezeigt","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 (eee462924587…), 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.