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.

“Probleme bei der Registrierung.”

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)

0ed1b73e751454b762d4265d4233eae49d83ba853b04b8b0214249eea146497c

Signature (Ed25519, base64)

eW5bOM1ZKS/ez07UHEBKXo9j791TioNhKlKk7NBtDPk7dtY5rGJkhfsxY5s1kiVTLC87M3KhrgjKSSeNuFRUAw==

Merkle root

5397210619679ac63434abd334c13f5aaccbd1dd184ad9d8cac5ebeceaa346bd

Merkle path

["0ed24e52d5916b3f8746c61e7fa54ea267a455c41d5602dde60c861481b3fdf9","051136405ce2fb29dcb07691ec472dceee68f5f52092ad5b0397bb278ef8d694","503e1f01f9bcd6a10348bcc8f461f93f240a9cbfd2dee0f08ae38b634a719890","feaba82df1ccd3cd5a3e95c4366beb95b101238bb7b0a6cba95060488c279469","479f7b9ccb74bdf27bff93304d6dd2b7043370b7886e013742543a08ab485782","595db53f4827903243d2d412c47f03e728910dafd32902cab0401cbc35b16b4d","067c449dcf22ffae43f7d4c2e7fff2bd9c7d98e236494b7c022bdc10dba5e922","8d06ca2ecdac486042c44036875be00cf38c27ff544a1fcad95bdcb5bd93cdad","4abf55a80a45eb65fdb358b0ccef3591a1798a50808c61292406a56513ebeaed","44fbaded7d8c8cffe1ffb619335e1f8a6a6b533be37fcb7d9654f622a0f70ce0","ebd887b95c65ad2e1eeee485ce3f91f11639667ec3a8cb8c2ad90e2bb352e451","f16a91ba7d5eb8499cdb4b6b74f78187d85f6744d7e21d3a134538037c0f4c88","a46038d90afa57a10c269469667a209623fd066d3f084698343feb099fcfeaea","e892ec98bb605644ecd2848bdd788a136c626ca940d293df8f2f1ab99110b2e3","eb97a4ce74ce5f5fa16f1703481b35cd770316cd3d34167e9b76f4403804f896"]

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/ordering/de","quote":"Probleme bei der Registrierung.","rating":1,"review_date":"2026-07-31","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.