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 salmon was of great quality”
Google Play · 5/5 · 2026-09-27

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 3240231023

Proof data

Record hash (SHA-256): 34d578f1be59a8def2f060755ccc6f760ef18f98a95ae6fff5a5eb27d06ad85b
Signature (Ed25519, base64): qyqPBfHaFOUgfHUHX8dUUX14LP8v+fC62DQ6rHQQZXjeWlNKEEYHymzD46JoMfnKsNQVei78+1KpB/eiJ8N6BQ==
Merkle root: 888a38c73939ec95e6f226dbfb3637325026fcafc5a795aa4e227b811d6b2c84
Merkle path: ["34daba96437892ba50c26c389778275446aba5baccea3d836d61034757f0f549","f54f3e8034de9626c7e9bb464040ea6078603a06f384a6047f887c860fecdf5e","2692b8d56728f3dc9825a2c7181d2aa0a4b88c2d925b0e5c61b4e7bc1e4e80f3","3a25eb51e76e7ada693943e5a48341cb6fad61dca05de099ae8040b3afb536bf","cdc5a8ddbf0df13f738988ce53edc09c07250723908c8d07b04813d21f3c3750","55f09dddf50542af56b5fa26c16f786b92b669469af0569e01bb1f5cd0cb6bdf","67be8cac1cb25330458bf57059a47d673126c6bf2837dda3848a35e8b0e2d184","f4fdf140b5a9064af17461ff86568e20a18e6ce3080bca3214f0d5f89421cac7","29db67718dcb182637bfca3563fe9d11bcf3278c2af7d7c0af0aa61936bc67c8","b474201a458e05716064da261cdcd6400c5072a1aea81c38037cc52ccfcaa3af","98b53817122fc86b6561e134e40b506483d29662f54858e04123e9f55ec0106c","cfcf82b47bc6a006b7c11e5183fbaa666e00ea4d950e64e1f574bdafde8e1583","410ad2e8ec6f218bef120c1cded3462a092f61baab59fee462fd9704d436d66b","f46648ad2fd9f2769b9fc0ba1c434d2040de67cbd8b7a61df7b7575cd5a9206a"]
Anchored: 2026-10-13
Public log entry: search.sigstore.dev, log index 3240231023 · entry 108e9186e8c5677ac0ab…
Expected log hash: bc440cd3136178aee800fe49b9cf2e319542a645c9abbb8553c6ae1e354ce201 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":"v1791860805798","kind":"published-quote","locale":"en","page":"brand:delivery-much","quote":"The salmon was of great quality","rating":5,"review_date":"2026-09-27","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=br.com.deliverymuch.gastro","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 (888a38c73939…), 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.