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.

“Umgang mit KI auch für ältere Generation zumutbar”
Google Play · 5/5 · 2025-07-30

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 2543025731

Proof data

Record hash (SHA-256): 250413b418e2204c4f62f400194d89c1bfc2f5d2ae9b8a0ec5bba7cd80510dcb
Signature (Ed25519, base64): 3vium4S3CBB+cAdC80V8DWb1+i33jzPo3lYHrRhEXzsS5CSWQKN/IUtp2VfHdY1DHnM13xy8UfQSA1oW2Y+IBA==
Merkle root: 172a3e0b3c9f8b02f52318e01ba6beb899404e00e91c15eebc4dea38467e1404
Merkle path: ["2501280c980aefa0a67853f15bc20e916b102f018eb8c340b03b4cd1dafe7c4b","b0735ecdcd8abbe4ba417fbd81f2b1e1f7b13b52aeba1ee7e409ef37c816e6d7","b6c60f2c4ef677d0dc9947c485c5cf230f341660bbe41ceb2e4ee0c9a2a61597","4d020e25400602d2c5c215d34415853358fee24af1993648dd982ea053a5a7c2","c6bfed610fef6d16d08220988017000fb895ac0d0c81ac40cc158773c9c65dda","b4deedc731a3247287f10907482b71183aab4acc650adc7990c867c6162ef21c","f3e203ccf8a62ad535c1cd2a4a355a2183619425a8bc12fbaa0aa6b6d06db715","9d23b3dcc138ee99bbe48e03c511d683f1c98ace1231aba2d781bea6ca9ea3cf","2a50cc96c06ea9f271f8effc2901d9d799f946d9291ef0dc312892174f7c9884","0ed775e3ff45f318ec492472e10b59bca816710f78264bd3325ad8ae97b7cb47","cc2e5fa8c6a8e1865bfde42bbcafdae97fefdc0851f84fbae3d9515941b103a3","22df7ea858840ae6ab19a461f259a5dc1cbc4b2b8da70f18525901770d369726","6582b4bd72409a5334905e80c9e3aeb7c43a20c5eb4c139595bd990bb777102a","b2e250a62b44b0b9c303f91afd3aac8852fa6af504d7d68ed736141a3dd71161","7731d0ded4f51d151ea3e84474d1e27a6279e8756420c93cf5fec0abf7f11add"]
Anchored: 2026-08-21
Public log entry: search.sigstore.dev, log index 2543025731 · entry 108e9186e8c5677a8971…
Expected log hash: 19ecbe4a66d8adbd7c6057dbf6ed9be73485c248dba1e0c595279a908b3e8bea 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":"v1787283443958","kind":"published-quote","locale":"de","page":"theme:relai/communication/de","quote":"Umgang mit KI auch für ältere Generation zumutbar","rating":5,"review_date":"2025-07-30","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.relai","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 (172a3e0b3c9f…), 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.