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.

“Very good and simple app.”
Google Play · 5/5 · 2026-09-17

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 3140838741

Proof data

Record hash (SHA-256): ac68145e4e552383fdf1a22313730591bc49dcdab1e6d55da8dd2afadfae185e
Signature (Ed25519, base64): h0rRtDpzIBnbsMEQGaekb7hrIoPiOiTvcfW6kbbfVDeLpqxjY9pICn/dpNl0346gBDs7atrSz3DpmewEjM2+Dw==
Merkle root: 68ee5f8618d9ce1aa33f2cb5b6f3145b5f909a3c35a03ccc3d10e979b2f81082
Merkle path: ["ac648dfe049754e61947cf7b5765f6c8e74f4da3fe691ff65e547c78936686d7","15944c95a3ed5976b0c1f9d96f366311d7d31b8687c0643f94caa6bf3b45535a","5ed4cf377ebba0e5e99e8f5d716d81c19f36ad4a29cc5c6052dce44a30584a1b","6266037f1abfe64163b70132a78f3675f6bdbd7661ceac3deb8125d308060929","6470149590164dfaaa5542361c67aa63bfce78ee4a0440cf30da84265005bec5","705669fd05d088e28fe2b6d2c121799a6fe009d4e031cdd445d392fb428ab0c0","4b6ec2a986abb298392ecd80d4840138a8e86ffef670e853e32cf53423f4b3fb","6652c1dc96ebc30a90245a5c764f725f361aca4074e1c2b905673fef3157d228","346d348d72fb5836a9893a04dd7db3be81f704387a1be8ec360e0bb658d9486f","3b45a879ec96a99a3081385bc4b166947ec1dfa19788f44d23397f4b82185022","44bc71785ae9a7465454a9b35ade93ddc4b02f1f42cfba699a5d98c19daf323c","d308ed26aa33e6583b9c3bffee658c14c60f68a86ba341920aec69f22e129000","6a51893e356f5237142345fbb4d247bc07582fec6fdaa61c2c3de34a1617528a","d4477c34f5adddf1a37719c473b5e22e5d24c5bd237b4d0a607b953cc77a4964","418554fa0ebde54d6cdcc03145c7126505ed96d3734e8e7ae56dc0dfd8ca0a2e"]
Anchored: 2026-10-08
Public log entry: search.sigstore.dev, log index 3140838741 · entry 108e9186e8c5677a4791…
Expected log hash: ca4949400cf2d29b49789563ea2e672fc73762380548d6fd65398e40c0d98728 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":"v1791433229105","kind":"published-quote","locale":"en","page":"theme:zasta/ordering/en","quote":"Very good and simple app.","rating":5,"review_date":"2026-09-17","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 (68ee5f8618d9…), 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.