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 is intuitive to use.”
Google Play · 5/5 · 2026-03-22

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 3258673097

Proof data

Record hash (SHA-256): 30f496300811187d5775584bc70c48ac2d88c7e987c7f9aebf6ea0092e1a0b81
Signature (Ed25519, base64): 1XpDWksK6WezYOdde25A598XLGS6/Sdo5nw9mRwTcKaQVILzCIYQbBCc0hS08gykQT1FURDREtSl3BgVIkGnAQ==
Merkle root: 1e69109d842117168677c2c7aab9689ac78923960f86fb642566271a6ebec358
Merkle path: ["30f715a947da061e72bcc17c45b58967e0db30e106c7383dfecea69b13f49b15","28b52bb32b58502a32a6e8e7fd793f44125673ed86bb33f1cfb1af70f91ac712","26796269d5fefbc7b82bb62d95236b0021f6b9509dd7336ceb3853c6de42349e","87bcd5b330739539fe0bdc5edc5881aae3e5a11933266b000a573267f343d59c","e815c1f7f12c4675c5e39a3884dffbb7f92e2ce7ae17fa18e841f8c325f1ef6d","2aaa230bc156e92c0719ffc5a812ba83f0e3cb3fc084405c1c163926033a17bd","806576cd2ddd6dda796a2c33ae48e06c50111c12a7f33bb58b575944fcf6b951","b6cf4af0a5838709b5e3cee139fb98276fd44976c67fd06ba42b58d0566f89bc","69c25fddfdf00d481794f35f5a5a5c77743885e520ca6460bcb414a2ca890de4","7c669ed85f55af24e13d1bf09ee858f509eb2ca2a048745319c24384b3996674","6318a83c2e1ee58845bf55345bee30468d1ac9d637861e98c85cfc50a904bc5f","c00b3aaccfb9ee06e2f5134db2c03b896d6aa380b3457d17a26c9b0b2171cb84","7c33667a483d5fd3b9ed47c00df3203f479cead457d361a57e3e5a90d1401d8b","4db0e65440b78c494263fe6b915a75fbf2b04ea1cd2fed0eeba5f9cb4589aa37"]
Anchored: 2026-10-15
Public log entry: search.sigstore.dev, log index 3258673097 · entry 108e9186e8c5677ab832…
Expected log hash: c57cff5f0f2da5f1c24e09823c0cd10c485830bed55f44ffe5864187f8e896d3 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":"v1792033864449","kind":"published-quote","locale":"en","page":"brand:vaia","quote":"It is intuitive to use.","rating":5,"review_date":"2026-03-22","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 (1e69109d8421…), 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.