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 Übernahe der Chats von einem alten, auf ein neues Handy unmöglich”

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 3126883925

Proof data

Record hash (SHA-256)

11b7bd65dca6011c94c94550531e824ccefb35e102c9a582e6ff55ad4657c942

Signature (Ed25519, base64)

AUrzc1gwFDnesx8+gYhwbv6i24xKfEPRWGV7yLWDi9qHh1v7bhlCMPznBeJuh5zPKs+Mjovj6LDPVwkMCUalBQ==

Merkle root

0d7fec37eb7aa7ca022c461398d36283692153bdca7d5292b2302abb6878e5f6

Merkle path

["11b7d2767353dfdf8d13ab38bf3d288d338652a25aeab5ffb3dc0d79e3c6aade","cfa8198cb69e2aaa0d4ebea8eceaa38b34a583d06728e7517ddc26a583516732","0ec7d0aebd211685bc971b82e0cdd400f6fd50e0695fcb0bd5e274535b216c0c","7b39f01ef4ea6cdaa42de6ed6764de50332fe5617bb1c7fc27985029feeca7e5","55c7ba04c66d71e13cd74160a43c1c6844348a1558be5e1d428b1d2815ed8caa","663c01b96805561a23c8da0871013a0d064e863bb55de68bedfd53ae8f3cddae","152074e7b99867f8682d9b313de46dec4ca06ba5f4e62c738ced482c63d62d06","9e9268f09c7113ead0d0e5017f7fd20c06e1351ccf1d2316677e9714dc6206a7","a319ba94028fb0088af13def11ef86a8025a90dd8a710e9ae8b4381aec796735","7b1d1ec17fb5a49de17e17cc70b711a1e06d38633a74357792283a00e310f310","498a995a451a89fda62a7aab1d10ce4a52245b89ba6022a89e97fc46cf6b71f7","37ca272887db2c64195a73e7dab85600982c52b7a0288bcdc54529ffa1513fc8","f77c5de7cbbb3880e295e9751b837c38e25497099e33ceb7e9621a8a350397f8","7c6f9d1168e8a2f5a015e8aabaa46428ad67e71a9293d82f20ec40d2ad6c53fb","8c6d73d3d8b42a55077d4061fe37663a0906972431ecb9eb374f1f8461206839"]

Anchored

2026-10-07

Public log entry

search.sigstore.dev, log index 3126883925 · entry 108e9186e8c5677a6678…

Expected log hash

7790667e260445bf729ea3061132c2116b163a0e0b944eca343c9e8408350ef6 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":"v1791359818972","kind":"published-quote","locale":"de","page":"brand:threema","quote":"die Übernahe der Chats von einem alten, auf ein neues Handy unmöglich","rating":1,"review_date":"2026-10-04","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=ch.threema.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 (0d7fec37eb7a…), 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.