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.

“Ich liebe diese App!”
Google Play · 5/5 · 2026-08-18

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): 221128fbfd897aa9fb1dae3c621a74ab10ae1b5ceb0ccbe600bb0de6af565bd7
Signature (Ed25519, base64): FbKSNkKsOV/iZdw8+RRUSOVBA5rfSyN0Hd8up/Zsvc9+HQ7T80F/wjazeWFP6zGOvwb+uw+TcuLqcQNJng3OBA==
Merkle root: eee462924587f8024361bc8d60043805cf5210f8bd2ef7667df06d093552f9e6
Merkle path: ["22100fbc399c80b22e2ca79a62cf41bf71a38c12fa5a8c1aeba246781409191b","f07dce03489eeecfb5c32bdbe3966f418d4aad17f9c5d0e555b3dce5fa332ebc","e02581b1f68d92659836d37fb69af354d84ee5714906b60cee3b1ffb952083d9","0c14c5e8f863cc7308cb5be9b387c152a12b623e89525d5b8c4e4dbb7d3002ca","7174d920e0d95488327eb8a59dbc3ab0b4522901334b54e18e418d4257606e21","9c9887770667d36d0cbd0792cfc0ac96fb4e099c606caf06e543f1beb2f65d27","469c71d3aa8b9b293267f3e697f17bfc144e7b8b34ce9283f4d34c2e4fcbaee5","07b6d62eca37b74c0224cb602d3e7e1de7ae198ca6b6bce7586f647998f73ca9","5aaa93b66017cf2990d9f3faea3f27878c58ad9fd4d6fddbf667cc7dba92ee15","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":"Ich liebe diese App!","rating":5,"review_date":"2026-08-18","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.studysmarter","v":1}

Verify in the public log

Open the Rekor entry (pre-filled with this proof's log index).
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.
Decode spec.signature.publicKey.content from base64: it must equal Citatio's published key at /.well-known/citatio-signing.json.
The entry's integratedTime is the independent timestamp: the root, and with it this quote, existed no later than that moment.
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.