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.

“After 3 minutes on the phone, friendly and helpful.”
Google Play · 5/5 · 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 2948162176

Proof data

Record hash (SHA-256): e1a4c3f00a3678a5d9f6c26f6460561e1625dc6ea6dd00c940481645554e40d3
Signature (Ed25519, base64): EczUh6NgKB/4VcU+srydYkfjvm60LG58j/jCCcdh2gtwEcwysk/4gA+JVt1PXDnPr+TWSgIMC23RCmf4Wo1kAg==
Merkle root: 5397210619679ac63434abd334c13f5aaccbd1dd184ad9d8cac5ebeceaa346bd
Merkle path: ["e1a4e56fd0c473dd1a0def9834ab45daa45157eea55a8b591f54a21727159849","292cfd8fe6d12fe2f0a27d29523a98870eb0e536ab8c68f7438fe8f44805aea8","1052a4ce3f26a1f7eb97f68aa95fa96536d9b42d9bf7db8d89e809e1dd7714c6","4d9b336304ecd44bb17eb80168bd0a0eb06de11dbed19c06f0870cfdb98e02c4","a30ed35c206b4cf9bb6bb9cdba5b79b245006a56525743990262d99629f3363b","c31407fcf69cabe8f5243a6bbb0ee5e29ed16e0fbb09a4fe55526069255252cc","7e4e0deec7117c7586dd7463e62cb212649dcdc17e7f3c47b5b27c8501b23c36","e2a8fece1601e89f336f2ed311d0066e32d51257ac8faef0c131d8b889a8b181","30b52cf5d818a1a039e2daa78bcfce698f7d7f9a76f8b96e38439a7c91cceb55","01894fc15114c90d9da6fb2457769573cc268fa25fd420853837b029647543e4","a586ba3e9b66e13b0e731a405e626f3bb5e21e749259558b9df152f6abc3219d","2b37358c7252f903ec12e33f1d8c9795879d270812aa5678bbf73d51654edb9b","06275dc2003d93dff6ae62dae412a16841a241c39c4d4453231315397101e1bd","aaa7b399bae700ce8013bce7d22a5956b227f2e0adcc638da32f9fc5e72da67e","77ebbc5a767f49a9f64068a716a8c843de0ea8d44adc624726bf46e2e415a41e"]
Anchored: 2026-09-25
Public log entry: search.sigstore.dev, log index 2948162176 · entry 108e9186e8c5677a61d4…
Expected log hash: 5ff8f25b7934b5d72d363d6805344624efba4d637f2c851f11783b259b9d81be 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":"v1790226990092","kind":"published-quote","locale":"en","page":"theme:zasta/service/en","quote":"After 3 minutes on the phone, friendly and helpful.","rating":5,"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 (539721061967…), 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.