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 actual calculation by the tax office was then €226 that I received.”
Google Play · 5/5 · 2026-09-12

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): cb34e179fbbd936e5113fe03688a2921a706a37765233e1fa9bd3e3336dc0e56
Signature (Ed25519, base64): TqgAp+ubhR/Qki/Did2+n9NNTKtMfAm8Mj7bC+/P7lCjOuNSRYhECGwRN4S5AtLkUkkL/Gi4CYA++bWFZO7LAA==
Merkle root: 5397210619679ac63434abd334c13f5aaccbd1dd184ad9d8cac5ebeceaa346bd
Merkle path: ["cb34a553934e4076b75b4851e18a735ce4ce99583fbcb46133a04e64a2d53a74","e13cc0bace7cfa1fe3c3e28486d3716c9fbbb554cc3c9ac30522ad345771539e","ea61a54c145f4fd52fdb0f8d468dad4d6df715c33dbdfbc92e91e0d3608b0cb3","e523fef1fa4c77c29fc2eb3add6e54e63ec8fdd2176d6444202ba8d044c76ee1","09a8c9cff65e69d6adbb2d2603c67a00584fb55e5b2ce923159c42418fd614ec","5b55d337e1a8ee5cabe312d9067d0fdd6d74ba2a1151c209952c29b69ca0e105","4b2e21abf319da106ea76c31a06dfdab2923c90aa87910256a3164d3901952d1","0a1dae59c7bc4af9dbd0186388a1549d20101e6853fbca0917e799d32e393760","1ed6f05e32da57e214ee3da61049c954b9acdf2cf0b17d553d694762f848e474","9037e2ba67af16b858f90f6bc7feb07ce22c54505fcdadec34cf57b16da19b91","e608046c9c03d2d0b6ba3982ccabd707eb41cb602007bcc540a3878ee51db3e0","f0bbf34c1dde9d32919100878d63d35b3f578b04c286b3c7e9b27a0d61c8d8bb","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/price/en","quote":"The actual calculation by the tax office was then €226 that I received.","rating":5,"review_date":"2026-09-12","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.