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 easy to use”

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 2515243153

Proof data

Record hash (SHA-256)

6131791776e352b45c099c5c596f044e88bff785543ce641e26eec9fc638acce

Signature (Ed25519, base64)

uIM3neXGEqcziioSLeqaewAcZlVwFSq1I6A6Yhc4iykz9pklYZVV3c5VlLoKk5lS1VRsD8G0TUF+2EyUZRgqDA==

Merkle root

30b81ce96f52ff8c37a1dce6a2cf1045c2f51663c1ddbd5ca071d040e32c05d6

Merkle path

["6132eaa4745afe416c1f374f75a4df7745028de78388ba2803e7b15bc7f24814","b9c63e38d48c1a1bfbcfd7f04f9be82309755828d98d45cdb746d88c0aaaf550","108e32ae82dffb739e18db6a59f9ba03c2ffc81a49112a13d4fff156c9de7075","9ee6ae1d87e49bbc1fbc1830a341016df8328b3dfe1ed61afe613ee96ca2839b","3e3f7fdf265afc405429008542c653d6817a30debe1061f436219925c690c5d1","d2239f82f7b1b2cf48c50d9474a7c6f45aacc28b2b087e964851c3fb2687baf5","4e70fbb169040f1129df6a37686de03ec2460006ef1fbdf5193e67541c12a2f9","66d37c664a77129cf10e51861deb745cd901ebc8a33e6a2b4ec36788d9d5be3e","fb80296c79ee9511a36b96edcb3549f1432a5723b9c4cd1e3b85b5e4102aead9","693ae4ee8b2cbff1a06120aaf4286565d47ec83dd468dcb1bc808bc1f05f792c","61657b9b72ce1e6de1da05b9fb41c4bc6f5e1bceacb14b18710adfe664233638","171acba7b8de2adf5ccf753eab5cf5a607ede7e877b184db95d249f669c5c2fc","0afb56aa9b1dab269e4d7e686a093b4dffdbb488bafce3fcc9dbafc5813d2f51","7b80345d7bd213081fa8cbef47938ae80dfc899b90d35aad15f2a6c5e9b16063","dd9b0a9d584b044c4116e1c10c4b8cf4a06383a771a07c9f3d39f998f23cf36d"]

Anchored

2026-08-19

Public log entry

search.sigstore.dev, log index 2515243153 · entry 108e9186e8c5677a8eb5…

Expected log hash

314ca716b1ad71ca29fff6da960e81a719fe30fa5fc14d8646acca79a7c09353 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":"v1787138594002","kind":"published-quote","locale":"en","page":"theme:casio/ordering/en","quote":"very easy to use","rating":5,"review_date":"2026-07-29","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.casio.wac_app","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 (30b81ce96f52…), 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.