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 App erklärt sich von allein.”
Google Play · 5/5 · 2026-09-14

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 3162173160

Proof data

Record hash (SHA-256): 5c691938c4392473441ea3c92d8649de4e099064c1dabf61d7940fc4d43a558d
Signature (Ed25519, base64): LwuxAM+dvzTf1mL7j2z3TBE5vBtAVWWYVQ8OY5pdzGTggQScNc7ixpgWB5zSr1oORY6yRKZjNLwbtPFDyFVCBQ==
Merkle root: 47aef0bbc5d347d2f064428fd7eda9e99f7cea2d49004267bc87db0e45c42023
Merkle path: ["5c659abaf1f87cbbcb6725010a69ab5f677a9d228222aa27b68216af0811d17d","857d9eac1b12712f8f42d7a9391022a8b4bd9657c9721e3cc9071e3ff633c6db","21ee565a3730d63ea933af7eaa97b134ce9e9b11a2994df194712cbe7b335ac8","dead807621b162296b5b8cf3d01b5e3364f94211a2a471bb13eadc61defbe53e","897411499f0f0936205cf7ee45c20a34fd0067fd36a932b9c58d374843ce570b","568dee966c9a2f353e5479a68fc490e2fdd3f336f628c50aa17e9ad17683556d","af956281e591a4185a0084f73724169a9bb5e9c0f9a49743d2cbb98d8f592d28","8c8f74efeb1765396f12bac26173a9a07993039413cd962334c90784c8471944","74ca35548300ba4fddc9a881d45e8b1b4175da71aaa3dcfc938c7e29305be4ea","04b6c24aea93f401862e4268d8e3eacb57d88af9f08f2c7abd98123c22713eb2","5ba22509bdce270ee0434c9b80dd7b39451f89f309e5d27bf74b76d6543bb469","fc59a99ecd8e45f7a4edce8bb3645315ffa61f5b16e71389405bf26368007a16","b965f789d81d31108e28cb7456c86198eef687ef99496f7aa54fa323ddf26edb","0889ae3150c7685b34e529b715a23984c1ad15ae15f158815b083df85c4c26d0","681b858a978b3dea64df3700a937a058d6290a8e519185bef8ee7388d7739dda"]
Anchored: 2026-10-09
Public log entry: search.sigstore.dev, log index 3162173160 · entry 108e9186e8c5677aaa5c…
Expected log hash: 00d82a97e8d5da8f3bb4a78d598390d6b030eb8338f0e0735ffde6aa5047ae68 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":"v1791539060014","kind":"published-quote","locale":"de","page":"subtheme:zasta/quality/bedienbarkeit/de","quote":"Die App erklärt sich von allein.","rating":5,"review_date":"2026-09-14","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=de.zasta.app","v":1}

Verify in the public log

Open the Rekor entry (pre-filled with this proof's log index).
In the entry, compare spec.data.hash.value with the "Expected log hash" above: it is the SHA-256 of the Merkle root string (47aef0bbc5d3…), which ties this proof's root to the log entry.
Decode spec.signature.publicKey.content from base64: it must equal Citatio's published key at /.well-known/citatio-signing.json.
The entry's integratedTime is the independent timestamp: the root, and with it this quote, existed no later than that moment.
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.