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.

“Good value for money”
Google Play · 5/5 · 2026-08-26

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 3637399944

Proof data

Record hash (SHA-256): 25589c52b354cf7e45c33f5cc5d16bd906490b3e76911b5e41796b1ba83d51db
Signature (Ed25519, base64): HuvU9rIW9SJi95doYCg9bhZ6ySfJC4ZBgcpq6RhTJpCS2rhsL17ii3fScA2u5B6XhEfVV8h136CchtbUHEzUDw==
Merkle root: 7dc417186ff758c181cdbe9905e2a9f7c2944eb88a41e7dbd52a48ac04321d3c
Merkle path: ["2553d7a24b37ad1a371d192f5403902dee33da4ba1875a34ab515a2b6a82c105","1e3ffd4361dc4d3e6088dbd33ec59d36e0b8ed1cad3ae391a1f09ac5244029a7","46342be1094b5ac48dd8a268595f0a1a4ea1e4f16031f437b467f0b4c77bf4a7","dde45f2462f014a3bacc906d3520d70da648c5dd94ab0c6fba28daf5304214a8","cc576cf76845d41a18c9b2b754310269618e7acbafb392321681e41150cb8401","c2564f85a7480bfeb6a290e7c2154181248ce985f3c40cec5fdb8225b22e1e53","33894a616c3a4226ebf4ebb48b5e5a07f2042dcf187b5e5087620e1cae01a76f","80e68dfa1a5c1fca147e07e7d746c6f22adc1ff6d62e7abbd693f7765ee20408","cf98d856ae6524f45b57ea058a9b80bff2b7af95e825fc8dc3f48d7734a70962","a557bc9b0e9012c9cc99e633799fa3d5c1f87f34f2cd49b072b7d6d8a95ad7ca","11a8e193c6498eef08398a67cd88b496685c9d1dbcc6c264247bb9d91db97fea","c55a157ba05a1522cdf00c427814e744bb2583aace026375d741f884a6dc41ca","c2630b6b9ca1d11e16cb99a494743682b41d3604aa81f0e537e045d0ceb25c0e"]
Anchored: 2026-11-02
Public log entry: search.sigstore.dev, log index 3637399944 · entry 108e9186e8c5677ab939…
Expected log hash: 17b34089c9aa8091fa75e421b51f027dc37b50e8cb79082ca972af63c8cadbbe 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":"v1793587696188","kind":"published-quote","locale":"en","page":"brand:taxfix","quote":"Good value for money","rating":5,"review_date":"2026-08-26","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=de.taxfix","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 (7dc417186ff7…), 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.