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.

“Ein Abonnement bei dieser zwielichtigen Plattform zu kündigen, ist extrem nervig.”

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 3121837738

Proof data

Record hash (SHA-256)

099f8b1b543a939aae5f50901b7475195a8eea0d94c60f5606a4a420ae5d08d5

Signature (Ed25519, base64)

fThnbZuQGzr+K9Xh2SrtoPd4H9DdsHsvILRwfwoaTFBkOOo6A12n88YhMNXy3Ao7xUbwdlbRW6VOdAAlfg1TCw==

Merkle root

9d32c0cbfb02966e7a561566f948b48040888a6535c058e814428126106ff945

Merkle path

["099a8e5c601e6a7c5936c62fb9d18923881c9cd92e8876d6b11e379096ca3a02","90a37f194875426b8745acd95dd8ba617e5a89edf49b5b5770b0e6bdcf3bdc7b","0e2cbe812ce6fe64729342a543a30c9170702c2ce78c9c21a839d4cf56b23501","a8b251db304f3992c60c8917e7b320fd3298519b9ce8db39148caf5db7c86d73","e3c0109ab10d3776e68dd07f115fa6c57ad308e83b1d7bdc7d0624324e86b52c","0f9f0f3a361abb4954f8838ac49e51dba3f63eebcf87a24672c09f696ee370d3","f3873c8c03279a201451a1b911440329f24eb940db461f7a6ed88c90eda1c9b7","1262f5415bc408bdecef017a42456ad7f7dcb786d3d4dbd3c6ad0256ee2f16ec","0a1a325827980e40822a08770caf239960293b4db88d4fdcedd76fa0afed8daf","4f37e7e38af413e5d07cc0bb7c4c45f409d6ba03c2bdfe2b4d721602d9276ad3","8a4cfef7e35a5d667d2595c0ce1d30c86cc41bd1a413dcb831e8fc8a36bcb588","099f7d3196db535359fcd86eeb99184950451a46bf171aeb6e1628c4c60b8490","1b6827f0620411d457632601225bf0c0fa08a550569ab3a9309e36b42067eb0d","97b419a98acf461915694d49df1436895896a22d4e853073303f64e609656c20","a892fc29bb3c992428927e47e35596c876cca06d89acb4ca102f2a534ba3ab13"]

Anchored

2026-10-07

Public log entry

search.sigstore.dev, log index 3121837738 · entry 108e9186e8c5677a0c6c…

Expected log hash

a0090149b27e60cea52dd7dc5f0abf6dd7c00feef65be2874742fff2aa9e8bad 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":"v1791340487550","kind":"published-quote","locale":"de","page":"theme:proton/billing/de","quote":"Ein Abonnement bei dieser zwielichtigen Plattform zu kündigen, ist extrem nervig.","rating":1,"review_date":"2026-08-10","source":"Trustpilot","source_url":"https://www.trustpilot.com/reviews/6a79fdb35d21d3393f683027","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 (9d32c0cbfb02…), 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.