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.

“Is it worth the money they deduct?”
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): 1e1fbc5bad19349766a1eb673f6a0ce4fd7a2eda6662f9bc1c9dbcada9049b8c
Signature (Ed25519, base64): tR2YyKvMPzBPkzwqu7V8ITV22HW09hAdPvjIicQlrCi4fcoJWTpAN+Tf2t1Cc/KlSznVN8fOOCPcut6uQx5VBw==
Merkle root: 5397210619679ac63434abd334c13f5aaccbd1dd184ad9d8cac5ebeceaa346bd
Merkle path: ["1e20b3871b7902db31f6d959f808f37717b7931b4164375292b0291306203bfb","14e7ea579234ad8881d1a6e1c69d59b03caf65c36516ba8664d4c2448d293d3e","0386c25880aec2fa15f46de9d9811d80821f0f08db4f8089208048b3f5b96d37","b9b99dd8750d1b6097bebc7e0bb7ca6785110cd7ecace48d61b85dbe657c68b5","84e8593c22f1a485fafb30699acf145a8d0244fa6fb436e1c5f48df188825bc2","8060bd5a62e9ab1ed8186a48c6201ea51f55dafe13e76bf012b15efea65ead18","b3d40f7501c005508f1cf10e310d91abfe470022b967bf510c532b683e4ed51e","4eabbc83a61a4101f137eea8c50725fc1526a6a28c2c6ee0a5ed908cf4270b4b","90d0ab20a58cd3622e626b1096045448806efd211db1f3ba4b5783d92e74f2a9","468ca83ff55a7b670ac3b7fa99569e6593c55217c35a9013e3997118d6915e89","c72a57b8d1dd9686713731a21201720f6dd67d27812538987fc03760d1ed1b67","6364e68670997f2580620295dc73fc1bb7219986bdf8202c9b9ef24d8e7f20d7","a46038d90afa57a10c269469667a209623fd066d3f084698343feb099fcfeaea","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/price/en","quote":"Is it worth the money they deduct?","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.