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.

“it always send notifications”
Google Play · 5/5 · 2025-07-24

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 2904877428

Proof data

Record hash (SHA-256): 372a4b527995a6dda53194fb5537db2c759bf2c5572a039cdc8a8e8de837063f
Signature (Ed25519, base64): +Z5SpqrE1gwGrlybUbAPLe3N0Rhqr8WDMrUntTEOoOTBpU3nIlufXkXkMWai2GTLp5ltbqS4kPdAgvNWN086BA==
Merkle root: e299bf38720a5a91bdf63bbc0205245bccdf3432ab1652c69342549658b7a9ef
Merkle path: ["372cdbb88e41af37cd268a628f9873aed5ff7bcf24690f9d7e3d8680175842d0","236ec87e0a4c36b2fc3da59a488219b0e0017282386e6daebb31ee0982aa6a22","15afa18da2d36b71d70c215a5e90edd4ce2efe5209df7b3d8d981bfb9a752099","b7c84f0928d3027037163feb388938141f8f7dfeddc93812e14eae13fd2c5d61","e66a37a7654d3bc865c9b93a6f6da02b7538e546b4b16f79e146e090effd17c9","dadf366ba079b999371f7248ffe5192ea92466082e223f8b11d16ed7ccc1a002","49b60048abdc0f563da3f0a3e06eec340499e8ab375d8543524490cb11e5f60b","28af0a366573d2481a9e71e1e1184c8ea67ff74f787ebbb5d2800bfb09b03da5","dfa5cc13476bebe65bbadcf91eb3dcb067e7bdc3a30e4c54da575aa06759cc3e","f6e747f75424e1bb0e832b1235c809eabca97b000796754a34b7b0fadbc928df","90df5c697c0e7ccb431a46ba4929cb93820a83012f63a3114aa3e7fb2cd52253","f61ec008da9cedb952cfe797489f2f8391c0dd3d9db879feb9a9aa5b68ebbac5","b296372665f7c3838922f5e4d88b25d49437a77f990ac53d0dda027dc9495fe8","2e838893ef313b8ef0f87568e1e691fc197dfcee84413640a12968493decac73","bce5d442c07de6307e5ea8947098e74ce88c2246eda5e5fc1015a6d7519228a8"]
Anchored: 2026-09-21
Public log entry: search.sigstore.dev, log index 2904877428 · entry 108e9186e8c5677ab408…
Expected log hash: d020708737f55ccdf49203f373fcbcefe8158cc388605556fbfda3c365de7360 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":"v1789881486272","kind":"published-quote","locale":"en","page":"theme:vaia/communication/en","quote":"it always send notifications","rating":5,"review_date":"2025-07-24","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 (e299bf38720a…), 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.