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.

“seit Beginn an und haben bis heute keinerlei Probleme gehabt”
Apple App Store · 5/5 · 2026-05-18

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 3162173160

Proof data

Record hash (SHA-256): 1fcbd0afd46b1fff1bc495ec43a0c919b41093999e44f0231796b5f7e6b37ecb
Signature (Ed25519, base64): qLLqbn8TLNzCTQitYIyOKxpnSja5cPVnGRKhxMH4PlDFj/jnblQ422N6bR4WdngfKnPIPuWyUuWC6CE7VJdzAA==
Merkle root: 47aef0bbc5d347d2f064428fd7eda9e99f7cea2d49004267bc87db0e45c42023
Merkle path: ["1fc7ea1956a5318e544a06d0797bda0b8a40465e533c55f1455755cdde63a9b3","b3d481d74d4713cd12eac5b27b70ce9d99384cd87dbc10cea2553b7cbbd30ad0","7fd8cdd125376cd5321ebafb9cca093ad41af848b1122e372d62b9ebdabdbec6","10b20727c013fe0bfc67213c7148a5291c9b11ab5395beecc2392481cf6dd43d","56f8ad5368343d2512d6b0e715916fbfcb3c6625cc933ccaf515bc24c575e765","3ddf2e328e1ba58d6591f10ea8f685c957e96eaaff2ea9e9c50870aee3956457","866de26d0b1d9ea97fc0c0d3e1a448195158f817336d0e20de4fd2bf956f4a4b","bbdd8555268e90a42dd7c1e4a5f77fe55646145b662e0b5c995a65cbb7ed99a7","378628f4aced12e34e4128615e2277f0e103ff336dd7a786bcdd8923e9fb1f90","2e7cce6a514241c65ce89e546631f05bd8abeddda4975800537ef0f8a2adfe5f","532c328f6a7840b801a525450082d82a43ddfa2af03f80451b646d19105712d9","9ce9da1fc4942d3216ef7e34b4970b7f92c10b35f2bdbce79226d95a000bde9c","e3337465312a8871a96efb0ade03deb67d9f2b05a969c667a895567781acf005","0889ae3150c7685b34e529b715a23984c1ad15ae15f158815b083df85c4c26d0","681b858a978b3dea64df3700a937a058d6290a8e519185bef8ee7388d7739dda"]
Anchored: 2026-10-09
Public log entry: search.sigstore.dev, log index 3162173160 · entry 108e9186e8c5677aaa5c…
Expected log hash: 00d82a97e8d5da8f3bb4a78d598390d6b030eb8338f0e0735ffde6aa5047ae68 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":"v1791539060014","kind":"published-quote","locale":"de","page":"brand:threema","quote":"seit Beginn an und haben bis heute keinerlei Probleme gehabt","rating":5,"review_date":"2026-05-18","source":"Apple App Store","source_url":"https://apps.apple.com/de/app/id578665578?see-all=reviews","v":1}

Verify in the public log

Open the Rekor entry (pre-filled with this proof's log index).
In the entry, compare spec.data.hash.value with the "Expected log hash" above: it is the SHA-256 of the Merkle root string (47aef0bbc5d3…), which ties this proof's root to the log entry.
Decode spec.signature.publicKey.content from base64: it must equal Citatio's published key at /.well-known/citatio-signing.json.
The entry's integratedTime is the independent timestamp: the root, and with it this quote, existed no later than that moment.
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.