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.
“keine Reaktion im support”
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 2907673729
Proof data
- Record hash (SHA-256)
5689795940efc7d611dbc94dcce4f8864793eaf46832f5a41ffeb8bb43dd3b60- Signature (Ed25519, base64)
gvPluPPEgFG3+mI/DO3SadunUGLR8VqJsds9fBtjvjclwaHLPlodFauyqw7KTBLazUJnes76mxkgbp03cfAHAg==- Merkle root
b9a08f9d6d76dd148110a496219c42cf3205c6f982800d84d5c85d77e9461e02- Merkle path
["5688fe2599eb96a357b1214aad6f34d887bdd40484c9c266a9d12ce355704374","0c17f6868379b530d1e373ea188c7f82055cdcc810f371a9915fdc8c4f316bc9","152e2c723d9665b57c3a09e34589407371bc79f5ef50e9cf86ff9fc3c15bf340","f53ad43141341d0a66e74000467378de774be4c8c3196b7e13bf32e93fa457aa","a63efdd774bd9bdb7d781a02d5825c8d0491eb8c2ea4d1eaea918f19d85e3ea2","441bf93fc09c6ae6c22daa22c2517baa5673eed24c958c73989d12e5563b7828","d985403db25ad309a812d62d66f24ae6c792861a495dd8ad0f2572515a6a6df4","f1bba68d6fdc68a7f03c5ef0b88092c5441ec7b40cd69e495a3ea44d65e54cd3","77f80de4362f4f772f5d6552f1b46a300d7687a44cd8de78615c14cf70af8012","766bb4cfe333eac1737cecd6265d097df60f473fc80a54e7c8c7e0a78563296c","87d389c83fd89e992a96d0b9792dec0eff9c6544ae6310a697648d3aba29323d","0197d988959ac12f7d8946ff2581c88b7ba9a4305193828cca53fbbb9832a064","bcc0d977b8ab2060a87584efe5d0f5545e840726716d3f02c248db108122259f","6c299608515c69a03540be35865f96ca4932f3e0403f8f39fb0e1c2e2aedffb4","43a562d6822dab12c673c1efa0a3171d1ef69b949f676fb01847e1e5b56274de"]- Anchored
- 2026-09-22
- Public log entry
-
search.sigstore.dev, log index 2907673729 · entry
108e9186e8c5677a06ea… - Expected log hash
-
bf9a74000249ba6e66b1e29aae9d8cb95c3400dc118569a80e5c0949f3e8ac62The log entry'sspec.data.hash.valuemust equal this value: the SHA-256 of the Merkle root string above. Recompute it yourself from the root to confirm. - Canonical record
{"dataset_version":"v1789969984102","kind":"published-quote","locale":"de","page":"theme:vaia/service/de","quote":"keine Reaktion im support","rating":3,"review_date":"2026-09-15","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.valuewith the "Expected log hash" above: it is the SHA-256 of the Merkle root string (b9a08f9d6d76…), which ties this proof's root to the log entry. -
Decode
spec.signature.publicKey.contentfrom base64: it must equal Citatio's published key at /.well-known/citatio-signing.json. -
The entry's
integratedTimeis 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.