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.

“This app is very useful for our commercial painting company!”
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 2514013184

Proof data

Record hash (SHA-256): ffee5b83319fa07a0c09ae3a610b34aa398d2d573cb31f088ba7aa85a6449210
Signature (Ed25519, base64): +hUceTsrAh9LNPtXDxtYg4AKX+c55CbdGMejjaJTPFdzFej9F5sP1TeVYx4NGVS0st7lKu7O9TGNRbE7MEAfAA==
Merkle root: 677e672fa444dfe5152ab91687c577772e13723ca441b5c8063508daedacfe44
Merkle path: ["ffeb71e7963cb442f9f1ffea8388093bdbe03aa02b918c8015c843ec04531feb","6a280ee1179b59765e67a2b0a11a7dcc28c239194c7afe9ae0a35ef2e41bace7","d4850134154cf315f83c801405aa1b6fcefece97b9c7a403a9f1048a6fdba83a","1590ff3dc1eac53ae9cc7bd85e85095f93c170595349fc763f482c609898de74","588b80fa169d6937c032943a20fd13f9785ea85438636b8818b800bea8e0cddf","32c7fe25bf8077dff495254275268a04ee7ef17be2d63d360ce5ae00b1d503d2","cff2054d290af5ac6b67c49f29d399e037994538c6aefd22361bc9601f195aad","3a1ca045e719b9845065b909abebfa26562d494a17cc4faec3f0a8035fef1300","118b716b025dc4232d96a149ea8afc6f8aea88d575416e5478200896f6645e29","9dd4e89b99569bec52957a12657064e8f629f283cd7cc3df25b3ef9a4ba730c4","5bc7e6567f0d1b99483863b82e84c2a2697639aa33aebfc220df5a066aa7a9fe"]
Anchored: 2026-08-19
Public log entry: search.sigstore.dev, log index 2514013184 · entry 108e9186e8c5677a6b00…
Expected log hash: a596e5a342226b61371cdf76b5c8be8e37a3d00e7ffe8f7b0b550e1a8d1459dd 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":"v1787122978040","kind":"published-quote","locale":"en","page":"brand:tomorrowio","quote":"This app is very useful for our commercial painting company!","rating":5,"review_date":"2026-08-02","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=co.climacell.climacell","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 (677e672fa444…), 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.