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.

“einfach und auf den Punkt gebracht”

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 2681429093

Proof data

Record hash (SHA-256)

0721c9557bad777687c734d4758df585e35e1ee04693ef3b6c2909742a27183a

Signature (Ed25519, base64)

C8G6SlN9qS+ojL0sim5ZXx/b0haD0o+C9H8xGFLgLFOfOikxJ9tGzaZ4mYjcEw4iiXIli4h/BX1eWWDV4KLvDg==

Merkle root

49d75a7972dad7fc75a734f764cdbbaa106268e1ea0f657aa8c6fd89424d4b2f

Merkle path

["0721dd98683e4154139c145f5cd840f3e7415a87751b4ece0428865999f18906","7af766ad6f79671475c0af683e54cd0d405678064a3fb5c5dd9a711ff4406696","26dd3a7a40b0359f6d98d9a4877dfb7401c694badca218cd5cb7ca7f5d0e9cd5","d16cf325ae3bdbff0df2f4735dd11c0f0f65fee30cfbd660e94c512800b32a2b","fc6d63a6f33210b2cb1c59fc644454964712c01191c6558f89cb83146d84a483","e9101d83559601ec29293ff136a60bb592a2d4f27418c7b1fd04e0fe9f71f8fb","47ef70a7370f6d4540422fb398d3bb0e4190f459957b8c877407774d52e35284","16c825e65bd69e498e1979544e9d0ecb204249d87ad6359d20520ca759221f50","18fc4a6db243294c46613c641ed4450408948f5f2c4e9345ef7e2b7c0518be88","1173c91b2cb25c9f0fba9d9ef1f7dc42f2b63ebaf57db92e1a5817cb8b0f58ad","3e66c9aa593abd6d31a4550e5f3f86a8b21154101d738f82e8be072e185a07f6","9ad764adb090606813af8d981e25ae04fb555663f4dd61ecaf358a138629116f","f930e87d5846215d9d33cbd2f684fd0788c4b25eadd845d1575c3bc708e059cc","79d6c858c8d60d7d4fdeb98d50012f464859bd3437e8887f9a62b641664e5493","75fe8695ca709a884269711b05fbdac24cc3f8930abb9087723ce2c8cfa8fe2d"]

Anchored

2026-09-01

Public log entry

search.sigstore.dev, log index 2681429093 · entry 108e9186e8c5677a81cf…

Expected log hash

89c17d1b707f92667072f2c7dc2ae2ebf8b7354f0952f06862b4ec01440c148c 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":"v1788303366831","kind":"published-quote","locale":"de","page":"theme:proton/quality/de","quote":"einfach und auf den Punkt gebracht","rating":5,"review_date":"2026-08-13","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=ch.protonvpn.android","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 (49d75a7972da…), 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.