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.

“Smooth app for Amazon books”
Google Play · 5/5 · 2026-08-13

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 3198489507

Proof data

Record hash (SHA-256): 15be10dea190529544153fdb1950ae8a98935303477f8eb1951b4df9151a058a
Signature (Ed25519, base64): 4ec7sC0FShnSLcMpXh1N1UO+18nMfRAdvHVS6qeJDGJosoJhF6VNmaAAlCL4uIsJoNa6N5rZoDuTQ7BW9CAvBg==
Merkle root: 240cb93491796b59a812f7182e64c43781541345e454701e4066e1786c286494
Merkle path: ["15bfdc6aee2625941ff6fa275a00a97b1c35a7a2fd89161eaf378d32571f7019","87ced19385f01bf8ea19e1b8b4312163f549080eeaca13ffdbd1196c87d0d85b","fa24ff9b79f238c8c1cffd8fa2d2b4f06efa4e054f479677a2499f8d4c4fd342","fcc7168df8fb8746654747993f8d9f7fd887fdde067e56f8ac683e48e12d1a5c","05ae21ca477c9efe6572c594812bcf21e51994eaef151dfe389ea2e337ea76f8","d0839f994769db579378b15de95ef090898669721f760d7d568620da2932466b","e61f984da2ae394d172426291900f1cd90d9fca728bb4319e6f6a4944807a9ef","cb797fb9b11a2ef1934b3af273b0639d91168b5a36ddaac976b626282db8674e","448fa935d75e4b4bccd40c5cf3b9ee24add9a4d1df8ebc4e49f0e9f2eaf8f21b","aa425042a43b0f6edf67412297a0529941f053416ae580e52d0bfbe5e7c48039","c6df9a01cf601048ae6124eca395e20102f901479ec833fe6d8868935094dee2","8d2863d47cf1e91a5d95d44242edd815a5e649d3aa8c8ca4de0cb4b30fbb42e8","7115b4e40dabe303dca48b39285385aef0729dc23733c818e0f3ca68286a3ee4","0d65160dee55e809fe06e5334fb3150d04f822ce1cb47b2ae30b5d21efdf0eb3"]
Anchored: 2026-10-11
Public log entry: search.sigstore.dev, log index 3198489507 · entry 108e9186e8c5677ae5cf…
Expected log hash: 50393c13ffd4f8ef4c37424a8293b422d8c3ecaf6b9593225e2bb93e0cf2c210 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":"v1791686710415","kind":"published-quote","locale":"en","page":"brand:audible","quote":"Smooth app for Amazon books","rating":5,"review_date":"2026-08-13","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.audible.application","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 (240cb9349179…), 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.