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.

“Der Reader macht was er soll, ohne Werbung für Drittanbieter.”

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 2682592437

Proof data

Record hash (SHA-256)

194b3d2e7dd82c55e514e00655145510b6b887fd63461adc7bec8ba9eb93db2c

Signature (Ed25519, base64)

BVC4U9B5J1xmVZ053jemigHDFeBC5r9HKeOeM4Q1lpS45etXrVhyEGAsdJtbagfnPuE5uYNyja6/DUBXzVz7Dg==

Merkle root

579ce28fe2708bca920b52a6c28f3fe167f796c34475f556d2646d500467658d

Merkle path

["194d6808d759e9fa51ded3600bd3f1e22561700697c86128b99a82b0ec96c276","f150e20cad85dd75186726932ca9c00d78badeb9c53345068b02b543d19e8541","af0b664868aa8a6ef971420d5b97e73a8e98f39e50a6a4345eeb7890ed42e7d8","b1e0e4d32524a40d399e4935ab88ec2303f381596c3fdffa52a4e8bc91cf6778","0d277e911dc7c3bf55d4ceaf37050003e33c68bf98af0b8b322a22bfde2ca9ee","e317ca867bf2bb3c85ff677dbb85b50541a40d04a7ee53bb3587beb0702df0bf","6ce13f2e6ab0cd09ad99f245f750dac7d8882c7480b25490b34cf054dfc58990","db93c3a5eaff94285a4d11498635ba70f5dc85c5308ee6266540d18fc2d1ddca","9572a5cee98c6e99d80ab757392b154cebece0fc30e40e74941f44adb9067a40","65f314e7a6530e71640e054194ac58018eeb498c775688392caff871f36396f8","f988d6300a571a221d28676236af332db885b6b3ec9c02331de7847337631ec5","1aaf696e8b315da141e1bf7c7d9ba1b6a19e5bee66d91b0d46602b7d90047d86","875317d07bdadae00897a73a7f1bc92eef1edc4a674a08e89cd1f30fbe8a615b","db157fed828260fa197f9066f6b89dc0d54f95a65db24f732f440b0995162421","842d900b1cf416b40ed647fb564c02f9f1047f8312564495f259853a966fa9e2"]

Anchored

2026-09-02

Public log entry

search.sigstore.dev, log index 2682592437 · entry 108e9186e8c5677a8bdc…

Expected log hash

0cba4b3248d53abaf7e1c602875f7199dc2f8f0ecf513e6f05c7e522db47bff2 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":"v1788317104782","kind":"published-quote","locale":"de","page":"theme:acrobat/quality/de","quote":"Der Reader macht was er soll, ohne Werbung für Drittanbieter.","rating":3,"review_date":"2026-08-05","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.adobe.reader","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 (579ce28fe270…), 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.