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.

“hat alles gut geklappt”
Google Play · 5/5 · 2026-10-12

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 3258201873

Proof data

Record hash (SHA-256): 3d430f6a79efc3783bed2171f0804e058aef3048ac1ca045084a5e403d2f8de3
Signature (Ed25519, base64): n5D96HYgjRPlnsVcXkJpgu58ApdhQ/HoKd1az4HVif7VMZmesiOYAEC5+S2Vl8K1qTaGaj4HV+apBy2olzhKCg==
Merkle root: 07e2d0de1409df9008c16531abbe2f8515ebe8e55b87a042e18a21958771618d
Merkle path: ["3d4cbd5e08be9020de18501a554a3411b9bcedf3e1541c25a6c1a3db611d941e","408990533a52787d7d0d2f50d90aafd0fd1e13c117a9ab48adff817640bfab66","8ded6d547376607dc4bfc33383fe06863941349fdf624ca46b92b33bffa67b57","65df9d98843b8641705a405b0fd1ca5934c592840136ac6e362f9570d4111ecf","e8266e175cad77553f8fa092b78be5db9c4ab47bdc36e793b3562b9461eff292","2253d6da1b6b606076203b22434b731db459e380118e6bbc6ff5605d8d02e745","2e57e5a1531b57ea16c41a22c00407f4049f6a4f40893a981f45e1591017aa74","ed527547ed52b2b018e07fc252c72139cd6c0e3b79e597bcc9c6ff98458396eb","4c191684b15eaabd71f9ecee098d39e53ff7e918fb742c123dee569daa3a4345","2ae25dab102033e7053bcffd62bebc041e90633b2ef88436d619949045dada5f","3d6a9d4ec784580804def1aaacd86f23c4ee5a425d85c3674ffb4b2756c2ee3e","4d663f5926241f266352195a33380a37df27997d5729c36639e1e95dee72a508","48799695a25196e19e6c0bfac80015199da758df0acb5108e4c517a5d6bc016d","fd7778befb9f979134b4d8a1dfa78827e64c761abd83cab9d5ecd5bc01d8ea14"]
Anchored: 2026-10-15
Public log entry: search.sigstore.dev, log index 3258201873 · entry 108e9186e8c5677ab04f…
Expected log hash: 205b794967d70c4ec2534ff3766e47506acf44c7c68740049459394876120dfa 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":"v1792030899870","kind":"published-quote","locale":"de","page":"brand:zasta","quote":"hat alles gut geklappt","rating":5,"review_date":"2026-10-12","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 (07e2d0de1409…), 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.