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.

“super, works perfectly”

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 3248278454

Proof data

Record hash (SHA-256)

a5b2af745b65059b456f0320409665d49aee90bd2e0c65f853fc221055a9c23f

Signature (Ed25519, base64)

+GcggVEXXG40Q87oUDbJIb9EjxOZsyBq9PdPLnRsdEi6M0zfZBMLJBgnoqGWZJhrtnNv0wV8/8PB37AdRDfpCA==

Merkle root

81db1abd6b6e636da393518bb64e907fa9c48581b44ac2be5a9e74d02608e451

Merkle path

["a5adbc92e7873ba5e2759439b1ac4ca9c863f935bf9369589e42904625275d7e","fc703fbbc56f6924894817aec1952cdb9cd66d9eeb89c97e44e749f3c82bf31c","9a89d16a42f98d7b4f3d246987f5743773fe52ccea200ee5d3d1d8a96c261798","91061ba9cbc3d44edcb2765a40f4740f266b332e286ac23fc8e3a116d0d962e9","1a8d10a78d65ffc5dff628a3fc39c250ac2068ee27d0a58fdbcf8973ed1084b3","02b0248c28046a1353e73b570c904150d72f84198375735c62d31928de7e707e","6a7fefcfbd86462b588c34637c84b1681c6701db15238c168ceeabde43f3e3fd","a91f213af5fd2e4420bd7935176c04536bd907bc152a6888cc9ef14df6bbf46f","8bad02082532358c3c3a286779833c7fab4307b18916ac7fe4785c52b9fe0a16","085b3f69c86ff136771aa8e5162ac5f87695db989f8cf40904668eab1e971896","082b5ae9a3075de7f99662b7546e67e79c5c9d3e4621b0b6980facc5226bda3f","0fbe48c83f3a7fc54e0e6f6b760cf4208a99354beb22ae100be7dc95e97847da","9fcda85d8e37e19a15f376a43900980403d080527146762503d0fea51bd87692","6fa310e475466f0115dd6b7ba199f23e915f2a513e2610274356ac5bd367e940"]

Anchored

2026-10-14

Public log entry

search.sigstore.dev, log index 3248278454 · entry 108e9186e8c5677af67c…

Expected log hash

4dfbbd25ce402c4821f7e2d50b18e091e9a30465f45669967c545fb71910f358 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":"v1791948368672","kind":"published-quote","locale":"en","page":"brand:zasta","quote":"super, works perfectly","rating":5,"review_date":"2026-09-20","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 (81db1abd6b6e…), 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.