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 tax returns worked very well”

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 3273053873

Proof data

Record hash (SHA-256)

3f86e1aeb2b1ee6ec857a5383b993b3299498ae30c43856e0371de7711755a2d

Signature (Ed25519, base64)

aZsDYWR67KXDPAcOJjtdsaH8Rkw1sjQtPMd4F+9DCDRGnaFWZ7QAtH3P6Y4UnAqW7i6MbbZ4nAmC1V61rNAUCA==

Merkle root

6953a5ba9bd00082fa1986982a5979aa7ad5b4654ec368f8d247f13243e4e4b8

Merkle path

["3f88e8fd0ba3a8161690626454f71df323ab4feb970d7d9bba41686df156ea5e","afe2ca8722fbeb3fdcc17ed514413c712e730d0eab63d4df3db18c56ef9413c5","b3e36d413fa50ab446b012394a5a57c8a13ef8a388eb0263b83614750c99757e","7e8f462e5e1e6f80f48e01774afe412e643006e0bc47472bc511724257baafee","45607956a291706df8156ecd43744112c85824163d730a733987befa50855949","13be09c78bdb1c3978b4d6a852c2264c6a0ae7debb11d778d463dd2e90cea4ec","89a01957f8c9d3cd25651112304997403d6feb40f69102a51600aa6b5e10811d","edbfa9a484ef12a5936dd0b3009cab6bf9bfc39274acef413e4f773e6f05f7e1","552100c897095f53ea8d27c38aee828f88d8d69157f60eccb904ec4d5e300544","8fc726d0c38b2b9a65efa46294828b0ebd4324643bdf80c1ca945329c38cc7c6","7ec66a20f4d7a11872b07b7166cd1503633d9dcb47d68fb299782cf311510e8e","4712a5b33b6ff50d50cb0d169be1d0e243fc91c6e42666afbd10d27e6febb385","3d6624c631c3f201b337a52bc4f9494c99366c0aa74b4db152cef1b6807b4800","98a14e6f55278d0c3f64d31e6bb09545a033fdb7dd6455363be23426eb85b044"]

Anchored

2026-10-16

Public log entry

search.sigstore.dev, log index 3273053873 · entry 108e9186e8c5677adb5c…

Expected log hash

8e660c0f9c2f4acb2461077e20036379bc945573437a296969373758a8dbffb8 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":"v1792120102008","kind":"published-quote","locale":"en","page":"brand:zasta","quote":"the tax returns worked very well","rating":5,"review_date":"2026-08-17","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=de.zasta.app","v":1}

Verify in the public log

1. Open the Rekor entry (pre-filled with this proof's log index).
2. In the entry, compare spec.data.hash.value with the "Expected log hash" above: it is the SHA-256 of the Merkle root string (6953a5ba9bd0…), which ties this proof's root to the log entry.
3. Decode spec.signature.publicKey.content from base64: it must equal Citatio's published key at /.well-known/citatio-signing.json.
4. The entry's integratedTime is the independent timestamp: the root, and with it this quote, existed no later than that moment.
5. 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.