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.

“Not only that, after adding the restrictions, you simply cannot continue studying.”
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 3220996539

Proof data

Record hash (SHA-256): 390b717fe8bf05ad10995a07e693b1b799ce646f1514df8f9383e62947ee610d
Signature (Ed25519, base64): wpGxKY21yFqr9sfRPcfMgU4KkZSFus6nwrJUPZsakvaytPEz0kZDdYyQQvw69W8afb3i5xIQkuOXA8EhCzNwBw==
Merkle root: 1b0b408c7cf60721bf3cca50f4b7f268b0858a42fba11906e486c6694252cb22
Merkle path: ["39043d5dda96f35f77aace5738f961670cd72b7e7831c4a52eb7c3d0122e2e53","d2594be4630f605e3e285b8d408e8d16daf77dbc28d07bda0c5fe3d6760ca798","e24e72ac1136fe109ae9ea61fca07e8879d1648f8fea2a0dca407e60b6026d07","fdb475c3c46eedd16bed88f4d78400eaf3b712f7c15974df026817d006546477","ad31a07304c528cd14ccb3a718b948de48c568f18b7c8d2c6d421ee22d7ff37b","3cbba5bcab4dd97abee2897d406770fffa3547f099778bf7e77b80209dd4b181","8e33665a54b5a1ea11409db3708a2471f9ccdaf4918fb6cb71b5c9b5d9852cc2","fdb50559ca95e4434dc0614ce0cd8868ebc1be5a0c527434504978035dccff1a","3b6930361902bc9e2b9dad77e335ce165a54451d090624eec7a80d1632166f4d","277f36678228d57750984f6c9e6904f1a9988773727ef3d6eb5473cf7f4c45ed","2325b204cb902d18f6de3066c2e32c0b1ef80713e8508931f526dd37f3293ba4","02a91e84dd419fb91142eb41d22148d6364f823a8ddb534904911b59b684dde2","bd64ca269edabfbd30efee623435236838862399942a0d08ad142d3df41d1142","8547750c311d384cbb1a945300d6b6fb4f4bd2b78af7177366b3baa4b4c1e724"]
Anchored: 2026-10-12
Public log entry: search.sigstore.dev, log index 3220996539 · entry 108e9186e8c5677add5d…
Expected log hash: 00694de1434e648cba57bf07fb439ed90ba501083441667555bcf619bf5edce8 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":"v1791779426071","kind":"published-quote","locale":"en","page":"brand:vaia","quote":"Not only that, after adding the restrictions, you simply cannot continue studying.","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 (1b0b408c7cf6…), 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.