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 3273084324

Proof data

Record hash (SHA-256)

4d801f019128d1e4e9820e67510f9850643aea8860e02ba745b89c4a7d41aec5

Signature (Ed25519, base64)

+5sgWQNbr9lpKDwu6kBTsOxqPbyA3B47r7UdVkShgKIvpupcxevxyN5Wg55rEyE4s1+vh1AVGIFgagiTDIcKAQ==

Merkle root

4591ccf5fcdb01ed421243d02df5f30203ce391c077d4ade1ff5ee97e69e252d

Merkle path

["4d6d2b82b0303b04a4b818a2e18f9817704ceae833d1715850d90301d904cdce","f74222efac9635672f1f2a3113fec66e4a25abbb7eac36963e0afbdde000712f","ea6e0d9b78f13d35f663f9b759a51c160a50c1c7de02a6537a10c4303df6d7a5","8da3d8efaa452fc50b70cb701c2305c14aab8e7d32b0f87484946b27dddba94c","1a17121daff39e5d66373b37c7d60280be0f0f64836acb57af0c8f0bfb035370","615ca32a6f8ed314a5e3d3efa4581b4d1644604d06988885fa5656f204304d75","0feb48933bb719bece338da4833a346e079bc84936dd5366884ce41246c32376","e9a16e06cd428a141538722295fcaa63f4b69fc788df71b0cf79f44cf22298e7","cdbc0d4c0ff2949a5906768de15a29975ea0caf6302f43a18dead67fb86b5cce","e5ccc501b25f2b209070d83c6e1a6a543aa166692551970d5032e1cf2fa05d79","56d0cb2e44514ff61c37fc874aeee9bbe14a6c6f881656a90e54dab1f94afaa8","71deffdc3e60d0983d04bac22af47799e28ca987643ad6dda198476b887a69da","d52611af45c7ef524ab63e970b046a1061f8173af77bce3332bb854291964d99","04789af0aae7a52bbc7d5e129e675a1c89df82999aa606ccdd23b89f718c4ff3"]

Anchored

2026-10-16

Public log entry

search.sigstore.dev, log index 3273084324 · entry 108e9186e8c5677a4edd…

Expected log hash

52df3e0fd214b96d6c701f5f337408916b7566fa39826e2404f759c290be1eab 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":"v1792120358245","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 (4591ccf5fcdb…), 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.