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.

“Ich habe heute ein Abonnement auf meinem Mac bezahlt.”

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 2579616312

Proof data

Record hash (SHA-256)

092f2ef432ee4ab0bf93b19c7f0721924eee4a3bec6f95802bfc9a957d47890f

Signature (Ed25519, base64)

+izEXBRw+opeQ2CkdHqUxPPMmUnEyXOIYstD0okvNUgVnahG+nkXaH1aTPV+sSFju08kV7LUTqv+Bli+JWXxAg==

Merkle root

8d929b933d3da853a342174568dafd4f2990c556a59a904f6c4eac8eca263c18

Merkle path

["092fc0f5bd2fc47b8570a4a627135cb84410ac211000dce26032d6c59ad858a4","d3d5f324ebe286515a88bd375cec864567992bca2361fc7775a20641d817eea4","cc0626811529522503ea2e89dcac5a5c08bbb9f17cbc753b829c66e1177f0930","b83919a1e00cf4884f962a47a76c73af94f0c285b64d54262c858cb20ffbf06f","0edd38814468e88130896133d6b6d13dc728d6d0f00dcbfcb96eeb93fc815b3c","42c6a49024aef00aa1bb2b6cf644c2c5cfa8e8ba72032bd8df9356bb6d285754","7f22ff6d5deaead42fee57f82ec39fe029030ef903c11c81ef52acfdb2731b09","62f103e98e973634a8985d4fc56f85bfdcc5f3fdc90b6252041e76a046921fed","eeaa38983c971b4cd10ab521525268f86d3daedc923d5e36bde389f5d5f26bac","e7bef68f683a65dbed15a548ea64c6d25d42fccac21642b96f31909e97a1666e","3d6155f3202930725d04745c1febff035e2f8d94f9f75b77463aa71c7a3bf614","4273814e139b537ff52878f215555e1437b0cf0a363d27847ea79db5ccf13f6f","db36e5683a162968d642d2b33f1127be2dcf059690ad38add1e5db8d7a7a41ac","9576369f408a7fb58ca2e97774369b4e7458346c8937c3d02549b43f61f201e1","67cc9c31bb9e37342ca834f1c2afacca9d4e9ea3aa24cfabf98f677678d81a55"]

Anchored

2026-08-24

Public log entry

search.sigstore.dev, log index 2579616312 · entry 108e9186e8c5677a98b8…

Expected log hash

169fea3926d76eeb6fbcc1ed6cb8bcc55e598869705eefd29172a719878e4a1c 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":"v1787542624469","kind":"published-quote","locale":"de","page":"theme:proton/billing/de","quote":"Ich habe heute ein Abonnement auf meinem Mac bezahlt.","rating":1,"review_date":"2026-08-11","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=me.proton.android.drive","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 (8d929b933d3d…), 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.