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.

“The best app for groceries in Curitiba!”

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 2890214870

Proof data

Record hash (SHA-256)

cb58877aaef4ce31de830bf2b6973f7ad91ec505bc7dc6f525b08924323774a9

Signature (Ed25519, base64)

4kagvrCWyYPRgnN+dLu3r30VNldw0i2/T7EDX0szyR6T8oSzC4G1lvTxN1rSJV2uuV3TY2uenz6X/gyMYiVVAg==

Merkle root

04b39eaa56e1cf8f75dc8eac18bf6942167c8418ea731a7471223f0be60e3e6c

Merkle path

["cb532ede4fcb192c201269e3aca2460e03c1a315179220e690f764c38362cd1e","0e718d7790c145dc8af073f6fe7e014dc9618dc7173fd0551cde9b497ec2129d","c22f79742c5d620a2db8c13cd276c8dfa84e663451219b96b32ba98a75e0631d","bd7c2a8efb71fa70b0f0dbfc3eff7fd71d9f10602bde98783ac4ad1f24cde8c4","ff16f4cbea0e45c96991a103a9e8277c333dbfc2d9f263e344c55de3fb28f991","081fa6e2c8e7768d89fc8cfa915f70de773c20d16052d3e4bf65c171d4944776","629b76587a4943cc9898fa8b91a0d723c5eae9e2df72c72de9445790a78845b7","36403eb0297df7a9b616543f7a969b02e9a3dd9805f672d8978ae93b394514b1","730e8c3e9db95838d4da194962e8b2e72f7f32a4ae8cf0122261a26b120a09fe","5bea20f37fc23075f4e14a39cf85ef114794cb5ab4f5a1cd99769cdf3ffbff41","6adb1f59c81036996a2e5280307efcfb6a427a1b3d64a1b34440055d90af1ba2","1ef1a9718be3c90e98bc2f2ad1b13dcfe1b53f48fcfce25ef31cfaa0adba4581","77c7b6988870e1e90529e81d4533964f2663907157dc1c87878656cd074ac437","8f074eddb198349108c1e544aa98c8c80e756f627b29b4943cfd74cb3331adf1","3ba88b0016422cde319348a72d81ed01eacc4bd155bae80b5c4b6ab6d98a745f"]

Anchored

2026-09-19

Public log entry

search.sigstore.dev, log index 2890214870 · entry 108e9186e8c5677af53b…

Expected log hash

1f3acef0f063246e051bf412e40f4279cb96ed334ff7b0647a13320c1b31c4fa 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":"v1789722569406","kind":"published-quote","locale":"en","page":"theme:rappi/ordering/en","quote":"The best app for groceries in Curitiba!","rating":5,"review_date":"2026-09-08","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.grability.rappi","v":1}

Verify in the public log

1. Open the Rekor entry (pre-filled with this proof's log index).
2. In the entry, compare spec.data.hash.value with the "Expected log hash" above: it is the SHA-256 of the Merkle root string (04b39eaa56e1…), which ties this proof's root to the log entry.
3. Decode spec.signature.publicKey.content from base64: it must equal Citatio's published key at /.well-known/citatio-signing.json.
4. The entry's integratedTime is the independent timestamp: the root, and with it this quote, existed no later than that moment.
5. 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.