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 sooooo good ive tried many apps but they were not what i expected!”
Google Play · 5/5 · 2025-01-27

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): 32b536f9b8fce1d38c1164e03d9728d79d89d686f2ff43cb76f245d6efc8c4c6
Signature (Ed25519, base64): shM9YQl9RWzQyOC3xrJ/AMBJOH8ZTPOhK9ZGTmlXBnsjsvQZx3252sl11zjqULGR3vH0v2l5ppcLfTWpHx+LCQ==
Merkle root: e299bf38720a5a91bdf63bbc0205245bccdf3432ab1652c69342549658b7a9ef
Merkle path: ["32b12d77496bc8e3e48efd9f75fe87dcc1b1ff202b628bda3034877dc8e750b5","0e526ab2ea131812ff0af31d083bcc0bb007182c8c4e25b4ca763b7432a878e2","033f065fd14b8a7956a6eb9c547c33775fe555761a5b123c54bb61d6f543ecb4","382957cf552e18d5a4b44fb3a8e85b383b76a1d5fb58551e59f3eb74bf99fae7","2c69bd2221c8ea51e0c2949421cd917c4a91c90c429f250bf708e22ab6a8a0d1","602366a49dd76976279dc623786a6584e5d153f75dd28162b9d57a95d65803d7","64ebc52f81cf93234e876ce42693f4bee202303cd4a8dd62bbef866477465b23","9a31f7d85ae544593a6706d9b7471800e2c3c107bffd8534899d92cb08e77b88","f1c78f3158536e5944e7abd4397bc6a6097d87c8c3a6c376128fd247305f421d","87489e5a2ce5317cb99653d961b7c790d156b647a6571378a4fea03bb27e82a2","22f7f790928f056a4acdc3634db989dc19836ddd154c7a9b49ec17a860d185f6","357edf8b8b42fe4c3b552e7406b8bc0a14039d1d547cc663e39b36a74f79f52b","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/billing/en","quote":"it sooooo good ive tried many apps but they were not what i expected!","rating":5,"review_date":"2025-01-27","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.