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.

“xodo war dann als einzige App der Meinung diese seien schreibgeschützt”

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 2543978942

Proof data

Record hash (SHA-256)

6f58eda5d9437bb1b7195667ce1fc920b04c8380f7e3750cd7ec4536aa0c0e38

Signature (Ed25519, base64)

HG9suh4orDi/lJfFMIn0cOGDSHAnbG2GSAQWkhPT5r2K87vXDfNPQQdOmM71JmX9/ic4qb1RoqUmbVjyezqTCg==

Merkle root

3ea09355a1b22a15fffcd33ac0d37e4039cee2896092e637dd8c4e7dfb5d507a

Merkle path

["6f57a2e7654da685dd3019cca29bc93a287f1b375f25583aa75fe63a34b4e4f1","4ef84669c59744d2e03cd1ed700043dcfc6363b48d5aa10cff0c3940ccc287f4","de5debdf6dcbe327913f65ea16f93a95417222339c48636ee15c5cbbcf462bac","139b124d308efa7700e9861420469fe8ee401c251f56a6d861047122e45e5d4e","99c76f2285c47bd495149fdc16283455185dc8fc1d9babdcf39c85b8bb2b0355","f344fb956b843cb7f911402170afd8c9c255248325b2b8a09a0622c7fc24eb1d","7e24f505b6849ac1686366019d90ff104239d41d9efb17548e0333c05f637b2c","08f89f2ecc0abc2d2f9463717cc25ba7d88788f717d1396f4f17baba5e413b75","75fef917affd5eeecbf17b9451c85e6c197f7c0acb3d082784876f65f784ebed","13e47e7f12f750f670b690bd08d398b66cb6f7c737aa320697827e4ddedaaffb","cfb18ddab612a7d59b52d04ad166265eb2f8873f845be3933be85a5f51614dc6","4b61e0ec42d19f86b24664c45aeb415bcdc17f750f06fa8c661a8baaf980e7d3","0ead555428295332ed003e76021a0f41139c28278eb5ac0da90eb0f864c2f749","d8ed3a5c7d4cd902063782d2b816101a433fa513967f9352f92e3b3b0172862c","331ffac0f34e1f76cacd782a04285f7bacef5f5dffbd1f8163703fce9b22280d"]

Anchored

2026-08-21

Public log entry

search.sigstore.dev, log index 2543978942 · entry 108e9186e8c5677ac836…

Expected log hash

69ff2d97383073bd392d75b79533a80cb25c69be55aee7dcb24b1acf4a379172 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":"v1787289230204","kind":"published-quote","locale":"de","page":"theme:xodo/quality/de","quote":"xodo war dann als einzige App der Meinung diese seien schreibgeschützt","rating":2,"review_date":"2026-07-31","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.xodo.pdf.reader","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 (3ea09355a1b2…), 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.