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.

“great app no issues with syncing”
Google Play · 5/5 · 2026-09-29

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 3258717636

Proof data

Record hash (SHA-256): 38ec6b2622f41af0d00fbae6b83f0aa3e118f27847d001690504829b343f86f9
Signature (Ed25519, base64): fKr6h6+Tt/TUf3/3Iw4mn7+pFdlFIge1jmCSBldpQu7SkrsnOS/wQQ/JdAyCTMZBJtDlKgTxw8NstChehQp1Cw==
Merkle root: c1d49fab62e94ee1796f3eb15e1a21f856756e9a68ad117a17ae6c9694ffe1e9
Merkle path: ["38e8a1a771b27cf807dc8ef6b2a77a48a7cafc29c3aa5857527c7d0f0b06527a","e416a609285326d0447f25f22905f3516b23b56d1437b5522a3d62f0c7085480","68a9bf8793ffb5d2b899029080b329a394f146ed9a098fc4454810b524b13c68","38074362ae1f2eb97fcb01facc0f562af3fa011c46938c24ba56a323f29a6012","0366f45bba29f9418d48df58a5bfc0554796b2fd5115c0c969a04d39ad668cd9","6db56e555e2c5ee8ed39c3063ee2d3b4677c32c2c6e49786fa6969b711afa73c","463493208b1798bf7a555a7d7dfe27ef51ba87ecc61235b782aa43ab2ed45413","fe2367949522f8359b3058eb3b691c66dfffbf91968b5b3f9812f083f995026f","6cc236ac081d9b3d4f3c56f9346bbafabc42932f5a6f5a4f69aad8747a27464a","51913960b6297af0ff0f51bd451ce3d5fca40133f0d09b6a6badf31e1debf664","bae8b40a47578cbd5f9891dc5e5733bd44ef74545e36971d3a61fc2a83b22b93","9596fe45b06313e9f5998895cbf556766fc4e5e93f892ca136b88ff88cbd99e0","856d9a6a3e94d695a98fa0bb5ce8d80e9fc70a3794652b53ea754ef3c0720b7a","436050ea3288f64644ca44d910bc166b737265d33885dda72495c78f7429279a"]
Anchored: 2026-10-15
Public log entry: search.sigstore.dev, log index 3258717636 · entry 108e9186e8c5677abf47…
Expected log hash: 30640a6c2a3bbbd5aa6e5244e634da7339a6d42d7209b3c3a5dde0fcd662474c 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":"v1792034121129","kind":"published-quote","locale":"en","page":"brand:fastmail","quote":"great app no issues with syncing","rating":5,"review_date":"2026-09-29","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.fastmail.app","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 (c1d49fab62e9…), 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.