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.

“sehr fehlerhaft programmiert!”

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 2514967984

Proof data

Record hash (SHA-256)

2bc16f7c18251f01663c849a0d57a66efa6e08aa57a8df74a85030747c1f30c2

Signature (Ed25519, base64)

PppDf5RrmSqTQbOW4RNp8PCFKITuz5T8oIvZ2vLunD8p35NOm7RVoshjNd1MhFlw/lDH4yg1N5QCvaLYTQXqAw==

Merkle root

9ddf6b9053b6e5e7a2f15ee7f3bfc8dfb72c48a1917ae5b7e553033e3ded6523

Merkle path

["2bc2f395b34ca20fda8879557a0824d0d93aaf812652d5b5059426f88cd85df4","5c766f9e14a91eeb9e24944d2875a8245e4e1f357b50717c6e25c2c3c3941644","ec4596b8a48c90045dbe8f532b829da0798693e8486f2b559456591104002b1b","f1e17203e53d5aa29404db29de602c4e3df167a50591bf11d6fef4ab2580fcb6","1dd4e3b96063f17b771ca9b83a7182241f3baca475d1b7feceb5a593adda23b7","9f9129fd2a276dcaadff11efab529575eaa8dcd234b029aac6f5d6e57ab6a690","10cc9c527cf10ca7ae4db9cfe05a1b34e14a6cd788dc8b4d92a8db1cb1690ddc","54b94d38bddd47ccb4a67616ba0af0ff6c686a5cdc1456db43b09280679c2e12","084430d1e727258855b574625ffd78e0234f64ab0897612578ad4472a3f24aa0","38801c96fadba10f6ef556e1027496e675aec038985617cd27610db184832b0d","5c0e40aff552e027930270061a165991678cb8f3187ef140810eb91f71989e8e","049c377b29fd26404f0dea80ffdd3ccd27a01588242d345d20b6401ebee86ab0","48fbcfcef32592ba72653616c6b287b5138e378088c17384b9af4bf9ec9a216f","a4308f946a16111c9d609738b93b2f2ae813ce88e33e490f89cf33e3a52e64d3","50c4eca268fbb41f8c6bc36d8a5d1b6cc09733d96f0fb33e6cb584096c56f695"]

Anchored

2026-08-19

Public log entry

search.sigstore.dev, log index 2514967984 · entry 108e9186e8c5677a902c…

Expected log hash

be0cb34bbab326d10b25013c37c9294b14554a6c6e9fac3dc68c06dc2c3c60e7 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":"v1787135269737","kind":"published-quote","locale":"de","page":"product:sevdesk/e-rechnung-software/de","quote":"sehr fehlerhaft programmiert!","rating":1,"review_date":"2026-04-29","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=de.sevdesk.sevdeskgo","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 (9ddf6b9053b6…), 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.