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.

“Nach Beantwortung der 10 Fragen wird man aufgefordert, für die Fortsetzung zu bezahlen”
Google Play · 1/5 · 2026-08-12

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 3258071454

Proof data

Record hash (SHA-256): 2dccafacd87bc4e3194b159357e0e4add6be482aa5bb07cf3e40233920eb4f37
Signature (Ed25519, base64): LTjkodNQQXFQ0dC7r24VBeBGEzdjZYvFZYdNWzJvv/cRscoP9IfDg1Gs388GlB7Xlgk0lmLOJTlrPlVhzjdQBA==
Merkle root: 3286418fc06d25de584969d1d1d5f4b079918bf6b5a5178364cae8b78bb351b2
Merkle path: ["2dd3ae04d9109d9759d82a7744b3426492843ab1151316777016c248d043e37a","e3b0dd533f30aecfac55ac87f4436fa9fe1decba60e5b3f6926bc56b3c706fa9","a1a5868ea032bd74d009d2635150e1ed9d6f8aed6fd352e53b0bb0ab4e1a9a7b","af1d69f2d443bcc5303d28ccfff2eaf188ff460f1608ee2fb60d05e56d396d4d","56eb232f1d2e236bbd12625d10c2d34aa8ebfcb765d33443a47302b85ce7a184","a33a132543db7ddf62c443ede50e9871113f738f0abf35fb59f05191cc1ad006","2ddf224c9f885955fda26698738f29e1b54b31f1909c18782644c4e450007390","6c90412c55861e2daec177421f07c4f3e5cd1d31b38b7c9d0b76015072d34f2d","7ec333879fd128f00b0daf7d8040f2b7ca015e56aabd54803d4f91eed93c8be8","4ef4a903d1a840bcf68c5cb40d775b696dc873fd00ce9c0153605e2db3981246","1d1100be7a34c450ffa8104880455cbdab68faab3fcf0b9a1902eeaa174e1fc3","49e05cfef927266c6a609e22c205c5fdf538ab222e94c5e3282700418f88dfb5","d9800b1b87d047478eeb89f8a1dda19593d3b273c40fa6d591a1b944763f5e83","b4d8773b8032d1dec9dc6fa4ba1d52baf4d9efac6a7cb542ab0617b855dc5284"]
Anchored: 2026-10-15
Public log entry: search.sigstore.dev, log index 3258071454 · entry 108e9186e8c5677ae2ee…
Expected log hash: f9026b3bdc4a2e986a01140b2370b0ce9ec3e7c9353055dd7c9909c6a9941809 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":"v1792030101458","kind":"published-quote","locale":"de","page":"brand:vaia","quote":"Nach Beantwortung der 10 Fragen wird man aufgefordert, für die Fortsetzung zu bezahlen","rating":1,"review_date":"2026-08-12","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 (3286418fc06d…), 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.