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.

“the tax returns worked very well”
Google Play · 5/5 · 2026-08-17

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): dde4c5442d6ed095e3e5ce08a1f5250337c3e2a8dc3e7011e05e917ccd5f19fa
Signature (Ed25519, base64): 58aFLYE1BB44dldDRcDl+WPnSAPx6w+dd+MQDp8UJKsZajOygXWVbTOkModGLQR8nsWpaOzX6BaP32QydKIWAQ==
Merkle root: 5397210619679ac63434abd334c13f5aaccbd1dd184ad9d8cac5ebeceaa346bd
Merkle path: ["dde1dbc92dddfbbe7aa64b6f795494a2a6c1c2bb4118c30147477dccd355ac0a","5433016b46a9fd6e172c9d3f20a0d6c196864d9b3e9a7d8595c7a5514c532072","a420b5e3254be655ed8459dfd833f124086156baba859fbe8cb451098cddb907","50dade5fa78a9d20dcfff29d6378136d0464ba787278435043391c454e5899ba","4dbc561fc215a7d6d7bb573d7497c192b0b455375ffb7a712d2c3720b46be8ff","80710b2c02b9d5bb8b199772f7c267635a24ff0ed055cd9e0d8e18a6f1f7f1f0","3f1dca6f591becc0282b660297d49cc8caed0127ce02695619a0f5dbbf8acc42","4b051c6dbbaed8e2ce4e0485f48286b22a54e93c9f2c1686bed2719ff5dd6a6c","e983e4caa8845350a125de314c15e72e56c7a5f3423b63459bda43a02d611a13","041a1cfadbd0344240c3f1c8b8aa0c0d8cd5974651623a3916980cc5f7eededc","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":"subtheme:zasta/quality/user-interface-simplicity/en","quote":"the tax returns worked very well","rating":5,"review_date":"2026-08-17","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.