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 mag auch die Lernerinnerungen, da ich dazu neige, Dinge aufzuschieben.”
Google Play · 5/5 · 2026-08-02

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 3198797320

Proof data

Record hash (SHA-256): 484b3c3abba2789a8f102e5ea84d2dcc855e3af55dc3f7f583c19b618d2af747
Signature (Ed25519, base64): qKrHrUnjgg3OzH5iHL0rO3JFJvLhWkzGXUi3I1P8ev8HM3T5JxFDUq32BllJEIv+EpYzcrG5XXKLndoP4EuFCA==
Merkle root: 199738dc68b66dcf66f6b0cc77e2cba74c3bfda88989684620837b4c4e64818e
Merkle path: ["484c3ab5b1c4b3c08ba85f4c00633cb5f88f031dd0ed3ad69eea4a497ab99ea7","0c911e13d9b0dea46f05b79b618b2e8f40e3f77194a1e9afc6de86e82c9c0fb3","572a9023ee43cf48bcf9ae2a5115d19119e142d961de361e62d21d621581f5e2","b8f77040a2c72f526ec0692dca6491c4b0d4d8c31506357745a2c6c50ea153d1","322f380724dc3d6dfb12a720c152b241c3ad56f08b83efb353925fc4f7a5c936","06f455870a9db2e8c529d67213315ff00796f265bf471af19c0af510a487028c","8a11508cc2b30081266626847334dd78bb337d146744682e21e59dabacf7d11b","819a80fe6c87963ca72a30485deb2a66e2bbd439228c768dd93054011be1d85b","f4f47bc1cf1a7ad636e8e6e087fd3b633e2fc31d9fb599292584b523270401e5","bcc89037a49902a3c70b26cf633524ec038892760424a444a7fde7afcd652bb4","4819cbbd871abf60ec554a51473e2bc17ce4d8ef355170e3a704c7ca1cd1c9ef","793a0a113c6896c3097aa5fd875e658514ad3a060dcb3a5d23abdc1b4da18d9b","5dc6942b342fad0953fd3ad3bc002a6e4d6bf8c4ba6db81c1c43744a0d2c9996","ddc8a66e59fc8f0934334cf08e419f621290129e658cbc58d8ec27bafd90b0af"]
Anchored: 2026-10-11
Public log entry: search.sigstore.dev, log index 3198797320 · entry 108e9186e8c5677a14ba…
Expected log hash: 46227e67415cdf5b62c43420eb8b7a80b35acaa912410c2711787f678b77c9c9 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":"v1791687727006","kind":"published-quote","locale":"de","page":"brand:vaia","quote":"Ich mag auch die Lernerinnerungen, da ich dazu neige, Dinge aufzuschieben.","rating":5,"review_date":"2026-08-02","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 (199738dc68b6…), 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.