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.

“I’m very happy with my Casio Edifice watch.”
Apple App Store · 5/5 · 2026-08-14

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 2524810465

Proof data

Record hash (SHA-256): ff168f23579e013726b5f21bc83bf92fce78559313ed44455a0eab30cb848a3d
Signature (Ed25519, base64): ac+Irwb67NBS0ZJGbIdrPI85Tc6R+fLkc3fF0NRFYeWxlh76RmeRhErM11DV0lr2w9KWceQkZ5KW3XZsMqcOCA==
Merkle root: 3e1c67438f658ba7fd015e6979c1bfd82d90efb0848cecbd4d902d6b2ed171d3
Merkle path: ["ff12e17a2fe219611779dcfb8ea97b32204f0bd6be89dea245c0a1162c851905","a48fcf338848264b62c58c52d9f15699d681b31211e35b3e9b0357b47260f718","19279098922d6620063999a6c1d91c8a27d3006cf83d4ef35abf600c2ace22b5","4cf5dc288d2f55266b550b70a1c4971dfe8fad59f2bd38c0913e668935a7e539","07ab66ec9baea3dd7d09519171d5f761975d56956526f07bb5270e1c82893253","1d525314bdd660e43d4237392b802a8a2a482993cc504ec3501447b1092be431","4e22dc3a173f877be5c8b0dc0c2641e19e2e54718ff49f9d852dc0653e20916c","03efdc3454e230467c6ef964aba3412e03fff8839006069d200445cc01fd0488","b6559c6d579d7ccef8ca6152e9f69777bf90f9b10af071c5aa21375a1e030941","8e843967843f45fca5ae295bb8067b393f5706c9dd4aff34b47ed9968e42e02e","bb7bbf6f568971e46c339201da8a96bb6a6c799d83bcb98c5de8e5a4b9d99a0c","48925020460bba3dda217ec8c974e96be1bded9d1769192f63a66523a3769db0"]
Anchored: 2026-08-20
Public log entry: search.sigstore.dev, log index 2524810465 · entry 108e9186e8c5677af074…
Expected log hash: 129b219cb6155ac24569a579c61e8fc9cc2d89305732944b8849d5e719dfd073 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":"v1787193927339","kind":"published-quote","locale":"en","page":"brand:casio","quote":"I’m very happy with my Casio Edifice watch.","rating":5,"review_date":"2026-08-14","source":"Apple App Store","source_url":"https://apps.apple.com/us/app/id1555979427?see-all=reviews","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 (3e1c67438f65…), 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.