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.

“The only thing is that I wish they would allow access to community materials for everyone.”
Google Play · 5/5 · 2026-08-02

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): 3101ba9ce128c623867307135f784c69e33339d7f60acf31f9f2ae8760f04e62
Signature (Ed25519, base64): PST+EsF7PJvMo4WWXX2PI/2ab9eA9ePQ9pRX8a6bFZClbq1VZYpdZTKypPY6bOnbJgb9BV9tnmlvnB5Uj/O/Dg==
Merkle root: e299bf38720a5a91bdf63bbc0205245bccdf3432ab1652c69342549658b7a9ef
Merkle path: ["3102d06555754dce705db436401f70f586aab13b4804eaf767408c81e62b0f63","89fa0671f3ba2a358da54fb49c2567937468eb60e25919d458b0a31292d30c2f","419049a63b01291ff2e5722a0c9b7a75833a8eaa5de8fda96fa62fe70aace532","9b95b5b946605ee15ed35400abc18f98d575aabc026dffe6436551bc64c94d36","98134a955681eb8cc5154079941b3805588b9a61f0fc6388ff1076f8196c6b7a","bf1d7acf97325ddb546cf77dc86cb22135782946832cfee5c4ac99fd366ec0a0","968d667d8767b2546a5ba5a44ca032ca4fd3531843bbf1e5d97e3dff6e6c38ff","f814410318da6bc7b44980f2d4f5fdc2a5fdb32e0cf5fcd205cd51e16d04e62f","187d51a80a48145885d7da5100cd9a5ec8a689c9d514270568543fe6a055a451","c6c4fc2af6ba1eefe809afd91778f4d6e85ff37fa661537f3b877227c5bd0a39","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/service/en","quote":"The only thing is that I wish they would allow access to community materials for everyone.","rating":5,"review_date":"2026-08-02","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.