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 am very satisfied.”
Google Play · 5/5 · 2026-09-19

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): 2d0e228d7772e1c7e9d4dcbd7049bc828a4ee71eb772e35bad81b7bde9fd3575
Signature (Ed25519, base64): YNdyYHrLlFKFZV3NLsxcX/167ceduuwbKA30aplzXqY/f0uW222pX1bd4/HKYs8Kc7HiYiCPcHrnRdNktxfgDg==
Merkle root: 5397210619679ac63434abd334c13f5aaccbd1dd184ad9d8cac5ebeceaa346bd
Merkle path: ["2d0bbe53f31b20789488501beebe124264f93ddf535f2deabef8159f54bebdcc","f352b8ec74bb0c2d3d5311cd1f55ec4ce86a11af6b240d02bc3021189d96d652","93682d65b0900e07eb2841470fbf62836e2fd64acd65323adf0a1b0b6553e3f5","d98d534602334db910023f9128f06a6c5b1f7962a0e731917d39dbdcb25a4d42","10584ccd74faf5aa56fe31b0070c89783308d0ce15e0d6f0d8b9c09b8cdc30f8","d715b8acfc9006e5e04cbc9c5968918a6715d1b3d9e8a57d14f2f38352a19107","811953d7cf2619652461aa78969b04f465b5c3144253dcd8c30493471d4d66a3","04439df245418a14e8953fa0c129f3736c68da19e68070d25eb24454a44203a7","315f5a24f1d9bfb67e8ba5c6175eeafa371245ccb23874436b10dbc5cdd78307","4ede23e88908abcd799791383748004ed7e919a4367d796e52e0091a1379200e","061142187b170e06cf7191f1d474df812f7e74bd009127d14ef717fdeb0d22d9","9fda34f84101ef4835d243a0e65146e359d04cd03e433c76a0ccdc532f415244","cae21a1e2eba2d9a014f0d727cffbae7abdac416604f893deac5f07eef84e3ed","e892ec98bb605644ecd2848bdd788a136c626ca940d293df8f2f1ab99110b2e3","eb97a4ce74ce5f5fa16f1703481b35cd770316cd3d34167e9b76f4403804f896"]
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/quality/en","quote":"I am very satisfied.","rating":5,"review_date":"2026-09-19","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.