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.

“vaia has everything free to try and if u like that feature u can buy premium as u already know the quality of the things without paying blindly”
Google Play · 5/5 · 2026-06-18

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): b139b0e193cae3e0117803846bbaf211f1af4e49cdbc5a289f35e1c6ea350894
Signature (Ed25519, base64): 8LGkAeF29uJ4gB/9tiJwSiYorPgcaGX8gEq5H8Dw5aQV9mpWV6r9H+iYqtk4pBXIsmpxWkk+tYvZUePm28KEAg==
Merkle root: e299bf38720a5a91bdf63bbc0205245bccdf3432ab1652c69342549658b7a9ef
Merkle path: ["b13dfd3d637d38992db1517016d222537ce87397e20973ac3b5b59faeab3e1f1","a1fbcdfd86e37d359835fff703b943d155ab29c5d5502c3a2b52f46722c4754c","923e5c51bdbfd70ed2f0165f13cfc96ff8a8fc61a6d9944ad631f7d3ed79d987","dc651350eeb60cc7714df37d0a1535fbfcf153b202a148c843f34980f0848333","7057f1cbb38d14fa310fb5d4475e2194b660608361b8089d35e3f978f05846dd","2f03c1ba923af9d05af766d8a91ffcb4e0cc46b1986e6549986118efed981fd6","0ac47dc63fcbbc91572b5d61c6a787708a015a46ddc58c3f9acb0d777763b2e9","79b01888fefccb2fc72de0186032a8a1ba978b5a5fc4e4ab65ce368c7ed5e5bf","1c631459a03859c2a8f16891e1efa88336cc5e0a6303fd95cdf572d0365bc99b","620413bf2476cd28d325605187d6aaba277996d6475a9bac38fff50da78fe34d","c5b7e137a8013a4a21c1d5b67afcd303b0734422cc0c2253880dfe8a42a53397","6c2612f525e9372e44b0deeb0737e4e68d621df2f62b7144b07119251a9b517c","b5d03b72964f911025dbd61c2eea673598b47768b7619e9a279966a44a138147","e3714293de39ce3c6e3cb9d5ea7711343b19d2be532c75504682d8ef52e8f91e","2a462314156907e42d6f0d96eed96123f1d79516aef73ed189d9f5466556b638"]
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/price/en","quote":"vaia has everything free to try and if u like that feature u can buy premium as u already know the quality of the things without paying blindly","rating":5,"review_date":"2026-06-18","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.