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 didn't understand this app at all.”
Google Play · 2/5 · 2026-09-18

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 3124210377

Proof data

Record hash (SHA-256): b0dc75fdede897ee204a9516b7b775211fef767076a592804cf54dc3abab729e
Signature (Ed25519, base64): 8sjIPAGC3bDlNuj56ovmtOXv26ZBw7CEbswnlWV7w8T4uyrHoGcXH/u5IpLDXjnAf5umCV+SYXidhyvHQcIHCQ==
Merkle root: 3b820b0e91b2475ca02a79fe65f1dcaac35af570ee21f4c868099b9c17e17c1f
Merkle path: ["b0db7c9e719c7136bfa1707a89400757b83fa612e4de65eaf723d2ef5e2b1a3d","ed5363d4d446481186e75b88815b5825f024c6693f072b9c5efe02f9045bf08c","2de3ae5baadca348fda8538c2873c40bd91185cac76aff0b23f52fd3a72765bc","c1e87512e206aafbe60b0e7cd55a3fe67e02e75a9cb9e18d225b58cdcbec72ec","472f4194d59541093813f080c07c6814b42a6b59ea5070dd0b580277c58c7952","a312c8c2be9c23a53acabec22949932d87a825d25e2456c60886ce7178f3cdbc","22ba1beadd3d2064ee0302d46ecaf809255fc05424ee9df86d87c655ba590675","a1ea7d7f8b97039c033e2a3eb3fe55e658c369ab9675646994b71b13487af893","f9723c9e5273325fc646d8deb6a172ec222915fe5338893665981a8d87dda67d","9244ea23d99aa041fc69bb35bf118d29c3dbd5b9a7b030f4ba7ab0f1a5506eb7","a6ca92c89147aebe3053438f80981c1958433d9d49b1c71268b006e20f470936","79c527d76472954c74529d3dddd508bb5300f00baa6ce66cf581cfdaf986570e","83db60ef01b99a503ccd6a6abdd52daa1b692b73cf5b978606f8d217f799000c","00a544d427d2b0ef6286f24c44cfcf3a5f82bad04bf6442e459c003cb18785c1","10553711bf6721bc3fa0f227ed3bf669673b7af202d9c22d19db8987b7ed8714"]
Anchored: 2026-10-07
Public log entry: search.sigstore.dev, log index 3124210377 · entry 108e9186e8c5677a0172…
Expected log hash: 20a5241ced0c7b94303a7b8002f1aae217df3f1371aea54ff5745a148bddda47 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":"v1791349684588","kind":"published-quote","locale":"en","page":"theme:zasta/ordering/en","quote":"I didn't understand this app at all.","rating":2,"review_date":"2026-09-18","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=de.zasta.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 (3b820b0e91b2…), 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.