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.

“They did a good job on filing for my tax return”
Google Play · 5/5 · 2026-09-26

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 3258859570

Proof data

Record hash (SHA-256): 3a8da33f162395496cff1fae75e607b0dcc047d641a20c86fdae3839f4eacd08
Signature (Ed25519, base64): XXyM1nSDo8Wvs8N9cbuygQxrzV5HVvndYX2N0r1aJSxCU8UJXzh62sZzS9yXh5Rj1Ggr7PYvGAfhqOhOEDJnCw==
Merkle root: ca3049e83faa90e23a8ee728d82960c74b9da8080000e4c92979853b767b75e4
Merkle path: ["3a94324e32bbfc1589330c20402b56ce98349f919a417b5cf96b5064ff44f3de","bbd2ac85ba0e55e44c9b83463199e3766753781a1aac792d6672f81531a9e018","69f7175a400b8357ab1eb38aacda797cc843df50dcf6e42f2e1c99451fc75ebe","dbd932996ac393f5d4785b2f16044f14078ca2f04e1aa50462f0da715f103b7e","f2a9132802ae300c332f8a09d4ff90eac0b42702d9e0d13e43307e2f11a83835","997e461122605876c83e500ee21b01431041eae3e621039c553e657d81b23aad","2801657166e297858ac9c6a9178e465d16d6fc0f49ff4a7599b4159843d424d1","013364d7490d37dde4a12ecd929b617c8095f8eef7a3333075ae71f72c4766a7","42858d5868379ad59beb8300948558185acd7e5b65a4f77ebb526d3f66314525","2d5eb69417d9287769b62f42d497bb5587f6728261ea540088a25b385709263f","5d913e33d19a3986260438930448a30c776666d91c05c786a45beb42379944ec","35160e899989ab55b338117e263269e5952feebe8ff14148b9712ce076e959e6","3eed51977edad6c2579b7e509587049321fa77487298d3b73535214036c0118d","7614ef067de1e21e5c4ed10ec802ff07f79b9dfb75186edc1d9abf343905b9c9"]
Anchored: 2026-10-15
Public log entry: search.sigstore.dev, log index 3258859570 · entry 108e9186e8c5677a8fb5…
Expected log hash: 37382a24206a9b79ef105a983cf477ccafc4b4430b1549876c44fbf5fedaafa5 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":"v1792034893828","kind":"published-quote","locale":"en","page":"brand:zasta","quote":"They did a good job on filing for my tax return","rating":5,"review_date":"2026-09-26","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 (ca3049e83faa…), 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.