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.

“Very good app.”
Google Play · 5/5 · 2026-09-12

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 3140475820

Proof data

Record hash (SHA-256): 3993752bd7d0f9ba27ae1701df63a9c74ec697f227ea36ae2e07fda5860b0f2b
Signature (Ed25519, base64): c0rCAMmDiv2gHX/p/0qrtUe44VjrMkEiuOcpZYcoXVas3m0KIyGZwB75TCYXJMmYCFEngBEP6fUD0YrXyrP6Cw==
Merkle root: 52d6be1abed15ebd0724a0e1a493d5805e1ea49ddcaf8e9e5584928cd3e4d759
Merkle path: ["399452982802abd930c7593f01698e979a0680a8591ad572b9353ea4df06115b","0385248a1a929c6261100818e6656a62dd75f33fce394864080d6b8fb47c472e","bfd348959e75229aefb3328bf69e9fb8b8475fb6b9ab08d7db4e63ae5038d2d0","cfbfd2f2b3c9141a83795e85c6403210fb344132d8ec1c2cf6875be46292fce5","46d98526e11f5cfda4a8555ab553dd583e8f7631f784575fc60a78eb14763633","2e9cb3c8207ee75faa4641b006eb9cabbac445ab30781a16e76ce5bfc90c9103","fb4b0198c06c2c1feee3127804fb0e7b4ca3fd3b4aeaf5a6406fff3382d21c45","55b73884f7ea647b74d9f07e002dc9908805c2eeba2bd3bade35de82dbdc87c4","7f6b9195ea6248e706fccedff762f914e9d418d249bc7e275e699ac186281926","289cad591ae911a08c0ca0fbf9c9a12f6cc99ac6990372a2e0c9b60aa812baa0","c67dc7fca61c61b16137341961c9542a3fa1b3b9ab190b8e61c4c81fbb9a8084","56aeb0e656c2a392422771790d44a5410cbb9aec8acccfea2a8189e399650e20","7bcd5a7947a92a6dd94070d36a9ba6ee3547a773e1a98d6a8e599913acec3ca4","71d5ef7f970539b9a82546e0bdc1b1069245bf71351875f786a78e5550da4e15","b72fcc24171828b3fdfff6be65bb433d37b8e51a187739d27a216a784d84cf36"]
Anchored: 2026-10-08
Public log entry: search.sigstore.dev, log index 3140475820 · entry 108e9186e8c5677a78c2…
Expected log hash: bb68bef30792bf00f645df162a48943f770bc3f026216a44dedb4651c8ac0917 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":"v1791431489246","kind":"published-quote","locale":"en","page":"brand:quero-delivery","quote":"Very good app.","rating":5,"review_date":"2026-09-12","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.querodelivery","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 (52d6be1abed1…), 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.