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.

“wurde gut beraten”

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)

9a3717ca1626a04c588457856a328f8685ceaddabbb8af5a72328cccffa4a4a5

Signature (Ed25519, base64)

Mc184txw0ItgXuv68F33jTtyuXy1bruB3qoQ0xpmZ+iiP0qnSFs+F0aGkQlAvCjRDVlVg0nvOj8KjKS9HBvZBg==

Merkle root

5397210619679ac63434abd334c13f5aaccbd1dd184ad9d8cac5ebeceaa346bd

Merkle path

["9a39cbdd9fe0e7fec16216f2ada6360ce35346285248621735795f5e43b0eeff","1d7891dff390e1e17286e13a578835e37554da6f8fb674439748e273ee2a66ef","067ad6b9b35b503bafee62054d840f14398b75a638e67cb9bb2b538df2af4fc2","46096dbe9545bfb8a5b660e279c9e2cdaccb04ebae2143ee933a0ad1eb73570e","dbbd60fca663a93d72e48d834ff6d6a06c6d8073f92384d14cd5d85677e42de6","13eb10a21c10e856791db4fc711f5df6a8b7c8f533c2f49434015a98a7e3cd4b","920be72b9200fbfcefb5da180832d301b4340efbb26ac03c03b88eee77da25a2","1dc2808dbb997581775cb81bd081bd84a598220bd55c8f7d75b57a835961ab50","cb78e732c3854f521cb88d1b7c85639ff04d12929c62c734c30d6f47d04cbfa4","9aebe12b7ad5fb9e613d08b44aca2a693e3ba70ab4b327951de3c0f53811cf24","2714638b7147c0d0cb1673c1a0e1ee4b526ab6eb0fb98ab03c3875f7f112ec87","3a38d47949efc602ff6b616965b31e8678e49342630177cf4660e5e840948405","cf100015419b4e08a8d3e2de5cb23ad7a262130bd3e6bdcccfa47329e90a07c9","468adf75cd56eeaa89e39f50b974b405db9921529d680bbe88ff0d1caae6f316","77ebbc5a767f49a9f64068a716a8c843de0ea8d44adc624726bf46e2e415a41e"]

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":"de","page":"theme:zasta/service/de","quote":"wurde gut beraten","rating":5,"review_date":"2026-09-17","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 (539721061967…), 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.