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.

“it won't let me sign up”

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 2515095234

Proof data

Record hash (SHA-256)

f85359c2a5ac79a422982d72586d3542a1b065c7f88c35b5bc3799a32d3e713d

Signature (Ed25519, base64)

9cuVwZS7z1ThrjBnTMmaJHR7x1+X0gzzO68rvH91hm1pcrEluFLs8ThbN7eZWvVD1jysqUTso4EfP/2K1NECDw==

Merkle root

d9909e7ff193b610d96d9930fa8111baf2fdaa08b732478b03ded2b9e1e52914

Merkle path

["f85240f7e64374bb6ab60f9bf780f194a3a95fb31a39857322a4ec7153f7d022","487114bfef5d178c5b660b8c2402c46c0b120d65437e253dde855c6b973e8234","14af868f7923981b7c8b5a27376858f932c7bdbee0ba3975101975ffa6c1ea61","1ff9fb97972b8b5021690dfc91b196ec5bac19ceba806ed6c98790315f780b5e","cd5d566d8da238a5cdba00e825a0521184d22dd7265e76560519508193497bd4","f7913e06e22e348fc4cf247030bf59d831a1806fd979c03b0b3a3d6f21825b97","546dcf70a1af2bf191c7b5910de433127572ac6c1466ce58396f4aa6864f111b","9c754b5dc88d7c03f1aec9756ad6f7089c2da41c8ee17b4dc8f1957ead75404a","a96ea60ee912664c22f1967fe3f5a8f19716a498f42e9b99e77cb358fc193159","31de785c3327c2058649cd0b9bbb8b25f7dc0544b85d4d0d6a65c403907e19f7","8a909dd29a200274334382dfed19e4329e769796db8747d226433e3eb32c67fa","0ea8b66b67f93a3bb16d6bebbb43a56eb438bdecc1bf401d458a7c17e5043ee0","1bcb7bc00b1e5cadfce7b60cca8099d462417180bb3e0559a6a9a3ef44be52c1"]

Anchored

2026-08-19

Public log entry

search.sigstore.dev, log index 2515095234 · entry 108e9186e8c5677a299c…

Expected log hash

6f0abb2e15f57da153d99eb9fe756fd2540bcac51fcddbf7ac60c4be3cfb5f7f 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":"v1787136684512","kind":"published-quote","locale":"de","page":"brand:luminpdf","quote":"it won't let me sign up","rating":1,"review_date":"2026-08-06","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.luminpdfapp","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 (d9909e7ff193…), 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.