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.

“App funktioniert plötzlich nicht mehr”

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 2541942774

Proof data

Record hash (SHA-256)

bd497f09eb9d95ed84d1fdf2bab4b4f1534a7fa623be099bf53679d2d520988d

Signature (Ed25519, base64)

e2iynfsnXYCePs4NJS/qDRwWoSHEESKUfFY5rPwYZs6a2RpyLYvHaw2YLnH3tFSnUzdx9jiCk9dXn3lba9qYBg==

Merkle root

0fdf8a945cf322eba60395065bdb38bb3eeb32c52e065b6c93c48bb56aa3bb91

Merkle path

["bd486ea273465cf05d6fbfc9df4ac9bf63f3202c51c1d0ba0464cede5d882a80","f5dae4de019c63374c4abab345a660c7a75797418452774d8d1050ba7f3f934f","36f1a86e046c6b596cc4168a1f12ef1589d65890fefb9f8f719a4fcc7dd2e99d","a63cc23efc3b143bd2d55e291b70bca0b046c09a7cd3f455f985f025f2a6db3e","4de51abddd198492b5504677a937cddab505c50bd29c1d509bee80fa4a0338e0","f896f12493d8b0d3b526967346830dc37203e7c63a1c80b00ebbecf818c694ed","e2d2409c7d197dba81e9f4982bbfc904bead43cd45b856d64652275d606a7031","f0fef262d6ee29dc2af4a71fbfad728f2a45e8d25e5013c555305852624bf56c","d1f5941f803b2aec81c40a982324b893eba718a4e16df4012990ba8c3a94c1bb","ef30d9b14ca6417f0772351e4e77b44e4dcf95fb477f236e8191267ab37343fb","324723bded186f8b636480b33da4479e94c4fec47d7f875ca78f19fe9537b43d","4718e5a389b40d266afa20f51cfc3ee74cad421d785a3208ebbbcbe2f90d6b7a","35e532d6ab241daaf8e55aad2fae9ab09803278b73b0b4941e8a8e444e6c4d11","e612bf3863a4ca6db004d49df9b16b869da6bd7612ef55762e23c722f5ffdfff","31e60baa9fb8f672f686fd126d7dc82498bbfeaa38bc676e67691bf1c2c7c210"]

Anchored

2026-08-21

Public log entry

search.sigstore.dev, log index 2541942774 · entry 108e9186e8c5677ae0bd…

Expected log hash

4825ba618d3c3368179be13912e101812df871de37f30b1ec256ca6d987713ec 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":"v1787277864570","kind":"published-quote","locale":"de","page":"brand:worldline","quote":"App funktioniert plötzlich nicht mehr","rating":1,"review_date":"2026-04-30","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=eu.softpos.softposwrapper.wl","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 (0fdf8a945cf3…), 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.