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 3140627354

Proof data

Record hash (SHA-256): 7d5b6e4f80d24392d70cade13e0461785d0be8b71010e3141bc85764ce833954
Signature (Ed25519, base64): QmUnMl4ahHA0DJyZYQpTMpIPhjIXEpd0wUFV17h0Y0NZhLKGWlg+n3DoCqeukUM3oOUKAIjoVLG415bnaIwqBg==
Merkle root: 7e5597bd3c162c8b6d828ec7450367f642ce11ee386de414b88376dcbb621ae5
Merkle path: ["7d5128a2c7f56ca7e3b6353f478400fa71bf33a98ef42b66a7881ec37a2e3c95","164260313b8ab083d604ea7bd772d3de0895220197522ebb93951175c76d46db","e6dd7ca7c38bf2c3377879cedd4ef0b237475cd30d9710d9cbe00c84f4953983","ed82a35981f289a0bd163690884bc555fb21971e1e30b84a2121cfbddd116559","8b5ad52a1a1332e9cc4cd0357db1b0721d80d5facbfcb65df8520988262e805f","8bacc8a67a3e402d0e2be75383742b5b76bab5a2e992e7c50d04948d0c18b69c","bc53b293b1ed8c3ffd3321b2b530d04d640aed580f687d40b403aa374f3d4fa7","f335b9d43757ac4ad0c388e36245c1d970115f23c4cf140e3272138b955ec768","14bd311cca43931cc05159a73bb4e07e9b61edaeb03a504a4f7797372ff9ff5a","c5662aea7a2763401f2f6cec2c3928027090d32b88a27e157ab1a2e982292a7d","05f47b87fe008bfb191cd65bdf9c802df377ff7f729130e453ee617167649e15","0f6ede56f12e36267bf24fdf23705d8feaff7086284e609c045f36f343d5bc4b","c00a6a8e0eaf8442cd4e55ec120c0bab22fdb2edeb08c89262f10264f3ec3df6","5fc193f72843e5ae060e028dd49b5ed7a5ae6baed3b43902a359628ad39c7321","76edfaff3d5907039be8c493f114c2f6ba10fbab7705dc7ab77a269ec79893bc"]
Anchored: 2026-10-08
Public log entry: search.sigstore.dev, log index 3140627354 · entry 108e9186e8c5677acc98…
Expected log hash: 82c9bd063e624267c60865e2416c3d714724e2c3b18c4773424cdf17232dd6f1 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":"v1791432333296","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 (7e5597bd3c16…), 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.