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.
“Eine Spracherkennung, damit man nicht immer alles schreiben muss, wäre toll”
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 3121353835
Proof data
- Record hash (SHA-256)
93ebaeaabdd1a52250251f5d39533f559e925feb71800e076fada8bf41e3299a- Signature (Ed25519, base64)
Vfwk+6TGIDSgTD6PcXI/Bcki0fLKHOEIpXuNkZCxVGWvEL9LL3KexkbHuGmrDk4orspgdLNPd0uSksWMkrmCBQ==- Merkle root
1128c1e3e4534f30e1f8c2f8fc1f60db99ca4dd81f25405dfff62ff1f39e22a6- Merkle path
["93eb7b80334629e86f3f77237836a8831493ab777fed2cb729cf9570636c00dc","f7adbcb34ce1d6c8340053d91db97dcfdc65636918d67ebd5dec87fcd85da6d3","de1b7570f6d3512dd0d6e3fe71fa2c35707cb2b2378a75c9999051d0239630cd","3a05a6a629e1f146656151051b4889df6b7d092494043f473ddd3922b3c06f95","0b9884b4dd095e1708a15dafe0c0be6399e31272ba1826262907c71ca6a8b2aa","79ce54ccbe49724f4162f50e9e9e239da3a28d3e941e726d492992b93e6f139d","19e083c544c26f45866d91c7557c71c90a9991442aa397bd6e53e7a721dc7e47","0ba3ba9f5e2c62b51ec3dad36fcc968f05d5606dda32c983236d4faff52932ac","5585ed9cda2da77f940a0f71709662398eef84dece25be920bbbae177ccaaa66","25e977535ce6b2c581136311b8edd68d1f54c2cc1398e947f27870c3a7e29b81","93e36390f53520e55058a2690b1220a754f6a4abd30435fff587c0f37aa909e9","f593a66efe0350d81e794b43c17eb447282c3b809d1de3719c9a68e3f26a9bd9","6c0aaed5e79061d397304ea25612fe2eece0d52aa321f19af2d23e846682458d","f75a88b2a62ebd5b73df1c71402ad7b8bc380b5df523df930ffc21838b31cb00","b39bfa02188a075f3ffabe31b61efbaa34ef7a32306f491e668efcd33d84ef4b"]- Anchored
- 2026-10-07
- Public log entry
-
search.sigstore.dev, log index 3121353835 · entry
108e9186e8c5677a938c… - Expected log hash
-
3980f7151edd7b0249ea159b11c34712cba10d59cd8ffa603af676e538f81cfdThe 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":"v1791338675665","kind":"published-quote","locale":"de","page":"theme:vaia/communication/de","quote":"Eine Spracherkennung, damit man nicht immer alles schreiben muss, wäre toll","rating":4,"review_date":"2026-02-07","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 (1128c1e3e453…), 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.