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 app was very easy and simple to use”
Google Play · 5/5 · 2026-09-13

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): 72771a568bfb6d826436fe0d4cce82ec461ddb0d9755f9d844d091ccbca67268
Signature (Ed25519, base64): NqEllMEcD8WEToiCGuK1k1bubNQH2gw3A9+QKlK2ACjMVma+bmZYBmM1ZH/3uMyoMEA53oon4khZTU7bRQEPCA==
Merkle root: 5397210619679ac63434abd334c13f5aaccbd1dd184ad9d8cac5ebeceaa346bd
Merkle path: ["72797c16ef8948eb87fa0d62aaefa0067107db636542184c0776fbd04ff5998b","523a2ce12c7cb2347822058924e5d85b6d6ad5800696477b9c60787649424201","7283ca06fba84dba1b2f318b3ff0ecc4a19c02688cbf9abb7223932df307d4d4","4f574c51e79d847064fd5628d30362d195414cbc992b57f0b176ca488f003300","f48ed11b11112a47b2043cb681d42136bdb82da8bd850ce1c77293bb3be72ec7","5a74667ba1536f7ac84992dcf012c6eb32b2ff93df6e0f1f1872dfecd471dd98","cb4bdfe5bd85ae4f3f8f903b0ce5393a209c5f874d29963866ad6fdfea9d72dd","6449511c6ae2c6529ebf96740862d3230cacd9bb2321c26e2ba1ee5e0843cca6","077f5d85475878ae1e479be2ee293e127bd61d2334fab0103dc1289523f70b2c","aa00a104dfd7295d0795565fbb9a7ad796c8926393ae766ade8227f0f4fcfcfb","6d5529b06a3d123ad095cc94bd417fa5b933f519e60df8914024464e5df4bc37","3050619da10b649580e435ddaba61e995b6d1475419664a398883f5eabf734c0","48bc5ea5434a32841beac8d9496d2692095edbb7104396574890154d981868a9","f5d1cbec3469173c409764ba850b613628c88020363ace8f472e6f611d605e0c","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":"The app was very easy and simple to use","rating":5,"review_date":"2026-09-13","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.