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.

“Ich kann keine Fotos hochladen, um sie von .jpg zu .pdf zu konvertieren”

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 2582632102

Proof data

Record hash (SHA-256)

0d747e6c6873d8a25d6f52b2286fbf30097f1d8ad001735519cc086a0ec47d92

Signature (Ed25519, base64)

qm10DxSyym/R7r9NKdnn/rNwxL3xLnJ9/29XriHpTbkwXLAUeQbJCVGuT0tcHIs7UAzm0Ps0hLWYyjq0YCcQBQ==

Merkle root

394ca2392606a3b04285deb57e7eaef6f651edc68cd81b9dbd21e1df7dc54fc9

Merkle path

["0d6a4fd64364214aa3f00cee6b49592cd22172a940c6cb2da4060dfa068786e3","84eb6524762e502f52e935cf8295743f65aa0cdb85cf41f418ec7de18b853a33","e14cc70ae859fe7fd3cc321c5ca955549ed5828a2279f7a7b40c48b5e7b3fbb3","2af06363a6cd08a2b7440094c8cca43fd74492b073ef46cd71689f74e4ad73c8","f192dd85f94a2323a2794595e4c75054b8158aa304bb052f7d59baef4e7e6fa1","526dccaae630c08fd1c2d47caed8ce1bc67f32d27680f3d9b5488f3362278ca7","0dd925b78a377451f4262a996dc99135eff8f7545b3f803a1c5f29ea49ea4819","c40affb68dc95727c4989322e98d169c55c3704c3a40e716dcb80a6f0d4ae9c3","09f75183c181e99a844b83e948d3a73a16863c46ab895bc8380e658458d73e57","aa6a470e2898ba5fbd0748b120c3354fbf78a8c34ac64b118afba9a36279d1ec","b4af523d5874b83b0101def1a80db81798c91b854f619ca798f144999f26e621","ea300b9f1ec6f76ad95d40f8b2658947f810ced6129f4f7aa3346c2489d51789","b5d5fa09aa8096ed08f9e7367f0f812c836601d81e243eca35b79920ceb32bce","54146392ac4bc258e4e7061916abf0dc1399d49618893603dc99f51d4640362e","9d8f289f39075353ad2bb2433faa71c2a69f17cbb3019524aa8f0a248c7470ab"]

Anchored

2026-08-25

Public log entry

search.sigstore.dev, log index 2582632102 · entry 108e9186e8c5677a3e35…

Expected log hash

fda432c87b1359c3ecf3aab1f5f6988c687e98b4f915b2856536280c29d480a1 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":"v1787628086357","kind":"published-quote","locale":"de","page":"product:smallpdf/convert-pdf/de","quote":"Ich kann keine Fotos hochladen, um sie von .jpg zu .pdf zu konvertieren","rating":1,"review_date":"2025-03-11","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.smallpdf.app.android","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 (394ca2392606…), 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.