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 fast and uncomplicated processing.”
Google Play · 5/5 · 2026-09-09

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 3123908662

Proof data

Record hash (SHA-256): b57b8947b35a04af3379d7549db7dbe3bb878a970dd35c062f46fa3881ea38d0
Signature (Ed25519, base64): Tc+p63MwwBWZRCbvcgX9R7EW6TLsL+lGqMIsImURHY1MbBMxwjbZBubKHdoGCEGKMMhYaSjHCk6e5GAJnsx1AA==
Merkle root: c53673589b1f41937342019e079ee2c0ad1635342b5b2a41cc71894367084fa3
Merkle path: ["b57a85b89ef337a6325f4fe432d167687fef05cfbfb1dba7eb102ac106bebbd5","0336e00b823e9d39a7fffc53605d509a06c17af05d692c1abccffde07825239b","13341f9b653ac0f6f68171562725863b893845007636bee23e633896bbccc7b9","98881af79a93489d7623c58059ff33111e6beaa4f1ce32d582d92a4ad908dd3e","641d8fa8ca3a7754414c916b1acecc9120c73ea072324a2b4f409a81e4645371","bb4a216191e7f79978df220afa0f601a5f966f32b2e565480f7c4c64f86ce44c","a101f9d5f2103e93b2ebf77e72f9ca5de769b3b81c3267e072bddfe8dd947dcd","22228513f0f791d5a25f40e660bfd2257473c017ff5c86a5076257dd6c035a07","0c32e73f3780f9099f4c444714a2a787a6ad6f8acd1a2522db191b955e7df706","3eb34bd28f50c18652489a597e9574281f34a360e5f18d2d2704daafc1e6d00a","eca30af202714f1df3839be11aa3b70d57fd9853a473df21a27e523cdc8aba3c","7d1064096d315df35fac08bd88c207823cf44d9f53462fdc3bce8eb6d1967a85","ac0cf0905b4c6b990aace09affc00130a5f0345b56a32b37fe9b0f0d56ecb1ab","7edfc85f9440fe7fef8e7edd6f1372271982f006f84b94693306aed78930ab32","ea816c3f8ecd74fdcdc9c068bf36a30dea5aa6d104e982532f9e8769ceaf3fff"]
Anchored: 2026-10-07
Public log entry: search.sigstore.dev, log index 3123908662 · entry 108e9186e8c5677a51cf…
Expected log hash: 5372e71f27172d067b5d688f48846b5317672647da39397abf474cf22aba0576 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":"v1791348381030","kind":"published-quote","locale":"en","page":"subtheme:zasta/service/misleading-ads/en","quote":"Very fast and uncomplicated processing.","rating":5,"review_date":"2026-09-09","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 (c53673589b1f…), 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.