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.

“Nach der Installation hab ich umgehend spamEmails mit PDF Anhang erhalten.”

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 2515033577

Proof data

Record hash (SHA-256)

faa813dccd68e7d2736434040948a8543ef85513be903dcd51084e2d6c66d22a

Signature (Ed25519, base64)

W82gqNWNSm2ZnkRBnsMKuYxNeDPh8Xjb6XUUQ2AsLyDU37Irs3eFZKLk6kOIxa+k0dmf/PfDAiZ7UQbBJ5A8Cg==

Merkle root

62390602d5b1801b2c96dd61074fd5810278db65461e368ee19c9bb147d249dc

Merkle path

["faaa5ad1ccf40a6a08a15390b243ad2071852c8ed07090ddf94dee4de1bd838e","327549de0621c45596061671b3ea0aaeb3e9d2bf58f592b3f394dcbbae978c50","c57ca6d92a600e2c033b75c0038ec8632b4e7fe75e26a6077e9db0a9f432cb8c","e6aee339e1d6e473534ef2613dbfb83125618d20bada48024ab3dbfa5b4d04d2","fe57b54883c64351370f8de34c144f9f71fe11e8815926739c63cf3ad34afa69","21ca5679bd2a224b5805b63a20371a6de0e4d446a6311fd9355c6edbdc7fdbe6","2a496bd12d17c9a12e4899ad5e42af5acbd2d2c50b99e74d460dd6a3ccbd4ed8","b7de243d35fa6cf284a0319bc2a037e6badf15235e8c2ca44c22c318c87ceb3f","9fdce4c38086cd8453d58fb965c54a7d913e1aaba3ddb074bb8861aa42f455d0","7dbdd8108397825eb35de7ec0084574523b9ce7b808b1f12d2538e9236a7d604","8153579ede1f5f27c299feee9da05cd7a03bae179a4f75e6a98459be487f979a","377139030ce6dee03810e7f38bfae3d3df36862441f5f2621ca6d22dd21ba0f7","17e33114dc02b67ed59a752ab775223f702cdee87d0b28082386d0d64e98d9fd"]

Anchored

2026-08-19

Public log entry

search.sigstore.dev, log index 2515033577 · entry 108e9186e8c5677aaea6…

Expected log hash

458ac564101d02a2c8a5f98465ce4e920300682f0855e017234ab870c48a16cf 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":"v1787135948936","kind":"published-quote","locale":"de","page":"theme:acrobat/delivery/de","quote":"Nach der Installation hab ich umgehend spamEmails mit PDF Anhang erhalten.","rating":1,"review_date":"2025-09-19","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 (62390602d5b1…), 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.