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.

“Fast and easy, do it with Zasta.”

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 3081458408

Proof data

Record hash (SHA-256)

4d81f36cf26bf42c65cdb434728614af8f1908415d372f1db0e04d285da09cab

Signature (Ed25519, base64)

4B2LZfXhSjWRaBvJXa0oULl3ECor096JdczJQJf8ITSDoasiK+1comW4zUliDAaIbwAXLcWuCs3o3l9uG5XGDQ==

Merkle root

f2e4180d5a0710e7663a4b79dbb50303bd6f86e3a2b406f14001987f705300d7

Merkle path

["4d87055b9fb5c17ecd90bc99f5753c9424b6b7452d10abf6b29f348e2bafd278","d63bfda0eab23ec8b126102a57d5cbd04468b586b77e9a69ca9669d0e6a79474","72d91816827b6cdec1e0d714d6cb44e9629e3a3a43d26fb018e43e60e9038a74","3e1e5866176c354d3e3d4204773db4efb60d3e56fc6b1dc94df2f1f3c4f3bdd3","976f49853e3e6b2d666b6ba2c947791f392a21f1308bda2396a3f6996f745662","fff655b3fa555a8b2a5c56bad9eaf22cede756b68659bc33a01bdec953f5cf51","0caacab510a492face3d12239161f195641a89f7f6df6687b20bff3808a264e6","3546a5cf4606643934b4cd2a7b28a78bf6c609492e0c0afb56ac5ffe601e9b0e","edd567871b014b6e79aa631c6f61c9d2e228cab1f9003ee69b45441f45416619","94139afc2fba777ca306fb29f19492a5b5524a0649c15d92d679699d9b0f1835","5253f06534080ae2ee847aecb72e5282fcc76a86a067646a31646b2ece1f2670","cb6f5361d0bdfc2f067bec39754c3cc2773873266c01703278fd62fdd7b9208e","46c87f9a08f1f246fdfec5275340122c6fc82f05348c2147438d88f4190e91a4","2e5c89ae9ab7dbc565d9c1cf67eadb6709ebdf774f99038c61564ed1fae236de","e9f01260bd0385751f2505473f49304ca5856588aee517e499b7a694c94e66cd"]

Anchored

2026-10-05

Public log entry

search.sigstore.dev, log index 3081458408 · entry 108e9186e8c5677a9490…

Expected log hash

083ecc94bbb96677ba7c17fb105e7b1917457374ba5e9cc48c412762603877bd 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":"v1791172602574","kind":"published-quote","locale":"en","page":"brand:zasta","quote":"Fast and easy, do it with Zasta.","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 (f2e4180d5a07…), 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.