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.

“€140 in fees and then an additional payment on top of that.”

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 3272274666

Proof data

Record hash (SHA-256)

41bb460a9c8e7f361d7919a29362e8a4adc627e7abaf110f1783b6f070d8cf9d

Signature (Ed25519, base64)

iLIqFOkZXTBT9C6TQCOpZTEH5UX6oknnv/g7zRwg2TC5AZjxerHoS4RaC817XHRpI5ZeIq0nn9cYoEgr769jDA==

Merkle root

a4d47c2a34f6eeba31e2744fb1551fe9a0e34820dfc152f1ad93a68b24759c3a

Merkle path

["41b8ab32c66efa6d1acd9b9f64e130d52392363a6269b6e04f1cad233cb0126f","77eff8c891305675c96bba67515ff9607811c4e55ad1264381bdf0790fed6d9f","e4f643bd6cd511c4b7132f9026d8e39ee7ff3a27d9bf4b47b168d7a077173ac5","9c10acec3b1b7a9dfaf22bc3d5362cfb72c05d37e96bf5b628224b3042704ac0","7ef13c85770eea37206a65b665b5535384954f0de4d1707e6012c0183a41a60d","3bcf335cbf7bedec6063bb7dcee0f9f6e395789045c51d54b0b302a97581a3bc","7d15cc512971a864db7da7fdeed99f8a81450388156fdd923d138ce786e6cc59","431d13797415b28d9096715fef701947fc267524238c58805ae7e3d90725a62f","d6ff45f2c7a87faef9d3efde6c776ac8fe7650a043368d71177913b8adc401f3","234b251913a4b9cf6e5e752f39644b57b8861e5188ffc3a9e35d5a7870ba29ff","0aadceef0f0d856f742d189406dbaa3aa5c755ebe9fec69552e8b54169d5a407","349e15569e0a1f4fe3a9d16d01f014e54bef7124bbf1f14bdc15063bbedc0e8a","0d7c4faad4992f205f2c1ebb2b0e4b1b7e9d070f1f77d3f8d64b80626c324f46","35108299fffbb5c1a0d86f074b5805457d73da5ec7c848a19bc9a928f6a42a99"]

Anchored

2026-10-16

Public log entry

search.sigstore.dev, log index 3272274666 · entry 108e9186e8c5677a2724…

Expected log hash

d56e71820b4c8c62b755e9f6e3d2b624566d12db6dd1606e99ef55749400c387 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":"v1792036997995","kind":"published-quote","locale":"en","page":"brand:zasta","quote":"€140 in fees and then an additional payment on top of that.","rating":1,"review_date":"2026-09-01","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 (a4d47c2a34f6…), 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.