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.

“Die ständige Einblendung von Werbung trotz Kauf”

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 2524422814

Proof data

Record hash (SHA-256)

fcc8ad01882d86ed2cbcd18a9bad5ac4116b905c8c13523795d14e45ef389992

Signature (Ed25519, base64)

jhR0TU/bK1gXbHP6GWVvrA8dPt4kieJVEVGLkDXftkz7haFtpmPWDyg9wV6xjXEk4xBjZVgU0AdQrC4084j+DQ==

Merkle root

f8b4f722de05d6805a889681c3818dbde0f5141f0c8463f2762c4a9a02d66a2e

Merkle path

["fcc77d2d3a72facc838b28e24ee9f26d20bb9a17027d3c4979e75663fed9e3ba","ad92bf70a39f6339b007a70879c93c8af9895e7ba522cfc33f34a74885a172b4","2dfcf527d3f1a5679df84d5f2db7742816c257caa2c085f0fdb6813e08a1ba33","5b2a5db661e99389da018cfc3259faf507aa533a348076d659dbe322e13f1b28","fcf434ee92bf6a6e3cd69d56e8897c3623852a38b252b97bc028a13373839076","060605c4909d4e756ae18e0fb860690f7651530ab48ad3fb6eedcf260d3ce8c8","05aff387b6a4b3cafc99d637d9a1674f0431291058b4c026369534035691d9e1","58ba01723433430382b9d374425ced1f74818eb080619f740b41c5151e329394","dd091e4b0f1b3b6b9dd2f854910a158d97b1f08679a8e1bd83c13470fb56b2bb","0880f57ad2cb461ea7a46b7d518040b61b47832137006fff284924a4d08a85c7","06f7a93baf95476f593ddecfca04f326c9a79ac740314e4fc04c944d1561aa03","55c8c6eecb85583149f9a1265629d0d25028f7f86ae101a9b330baaae0f213a6"]

Anchored

2026-08-20

Public log entry

search.sigstore.dev, log index 2524422814 · entry 108e9186e8c5677a9741…

Expected log hash

e042bf60ab37eb8951abb7a408cc8c7483ec875b9606253deec7a67967130ae2 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":"v1787192294432","kind":"published-quote","locale":"de","page":"brand:pdfelement","quote":"Die ständige Einblendung von Werbung trotz Kauf","rating":1,"review_date":"2026-06-17","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.wondershare.pdfelement","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 (f8b4f722de05…), 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.