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 2514476227

Proof data

Record hash (SHA-256)

187404e7da3cd05de59866cc8ad6cacacc7fbd3b80481bc0a9940bbdd606be97

Signature (Ed25519, base64)

trBjq6rJqZ2N3hoP7Vy229z1iFhZYzn4VmK8BJP8HHU7whYjZQUec/NCmM52SHCTEu6Iom886scQr7g8gTC/BA==

Merkle root

a086f9fa8309b32cad6e06b6c84c12133a405483807f462eafed4cabc6f3fb99

Merkle path

["18738c63e9d8a185f39cf60c37629646aea5ebf2483c1ad413dbdc578d51f634","3d132382eb52fdbf69ae01b340b7394fee20b1fbab138e81c21bbdeca222b82c","0cf6a7bb8470e34a4b3fa22f8e096ca507dfaf6d6e4644b325276c81c13ce185","1c3c5726eb3661ea1d11ad33812007c2e5eb900b7d8466a6695768122e8aeb3f","41c7717a2a41a01266bbdd8fe2ddbb34811e9c8d950db62aa14704a733b7b40e","c8faf76429283f7e4c2618410dc4bffea1f5fcf991c4821fff28011e170fe50d","e54d73fec7c936c9a636e9160379a5aec16830b90b43b015ec3c637f606356a8","f00c2263d51c3ea8c657e7a5e683af3870d4176c76f4700ad519511c8ce5e933","db2c2f72f9852e19b95748585260e1ffa005fe5ffd7a7eef59acd08b914a2c83","fc8e0ba2ee78af538ad4ee1b71512b77685a3732356984b2d6b70cbb4b05a3cb","6058ebe21d25444de53706b6814e9b56311d1240ba69b0be7b5d47e55d7da77b","cc8130a5df263077aa44c9e001fcf67549fe251dbcec2ea116d5df2963aa6972","6524172f6bc7fc76e6e0803c488a2dc7fb1fb8c35a8cdc8ed06b91c9ec2353c6","3aaa0ca1c59e2fffb0896520bfab42cd665f7155bd5324013ae19a22f4f790c8","d4cf3fd862731bc6a1728d66b360c0434f801f84e015a828556d2731bd771b26"]

Anchored

2026-08-19

Public log entry

search.sigstore.dev, log index 2514476227 · entry 108e9186e8c5677ab19c…

Expected log hash

9a346357c8991b17bced8f12238c2332c4ac3078c0d9a283ee00f82b3c69be66 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":"v1787129084398","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 (a086f9fa8309…), 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.