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.

“Das war definitiv nicht der Fall.”

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 2948162176

Proof data

Record hash (SHA-256)

8a1f283996e04ed25c53f0427fc430b105235dd73e8df927b73bf5da94b4ef50

Signature (Ed25519, base64)

f5P5YC+4Ic58/p+WIgjjL876DdlVGUl3EJjoPFriZIoj90hcH4KVDZb5gjr9oEoJP2xOurX489m1cqR2b76VBA==

Merkle root

5397210619679ac63434abd334c13f5aaccbd1dd184ad9d8cac5ebeceaa346bd

Merkle path

["8a20ada9797961ed2347895b7265c7a208eb9e56931a5665a645c8558bc134e5","b433cfe9e2bf09fa24c65d8aa84d14f4c3e429d6b23211628295b87fe6e83f19","3a14aa162a27312b2f433e4bb283c532ccd1c3bc81a04d6364bcc872805881b3","3fb675ce48dce091c37dac7f94a27bcca04ed89f49f6ed3384d5b6246ea8e13a","0a91453b829402d84311334bfb085c653ae722a80a179f006689f3d8dce53883","e1e376c4c927db6b866ba84dda879d73b1a75ef96d6d2e8cd1f68ea4c6874fa9","a845713803ab643e65615d38de9c00fbdf58e9e2c33046bab16c8bab075fb6e1","7c67223dfa88bcf8d5b96ad2cc988a118890256c6a18027f9ce50801d9178caf","b6b511e83008d250ca68614a452f89e5f4b00b9b07e532cc8d768ef8fee2a77a","0301511e09b69b349a0fb8d20a3554f855d0aa365dd3b2696322e022713d7cb5","4f4c1c2371958b5f2f1602a242e309641fe1ee3faa18a23254e8446f76bc0a62","57cef6631396d6541da6e13b3470e6b8a464094ab53c852077db03ccc58bc7b3","cf100015419b4e08a8d3e2de5cb23ad7a262130bd3e6bdcccfa47329e90a07c9","468adf75cd56eeaa89e39f50b974b405db9921529d680bbe88ff0d1caae6f316","77ebbc5a767f49a9f64068a716a8c843de0ea8d44adc624726bf46e2e415a41e"]

Anchored

2026-09-25

Public log entry

search.sigstore.dev, log index 2948162176 · entry 108e9186e8c5677a61d4…

Expected log hash

5ff8f25b7934b5d72d363d6805344624efba4d637f2c851f11783b259b9d81be 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":"v1790226990092","kind":"published-quote","locale":"de","page":"theme:zasta/communication/de","quote":"Das war definitiv nicht der Fall.","rating":3,"review_date":"2026-08-30","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=de.zasta.app","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 (539721061967…), 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.