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.

“The app is very easy to use.”
Apple App Store · 5/5 · 2026-06-18

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 3139760477

Proof data

Record hash (SHA-256): f1d1f30bc7be86f5d6fb8fc46a1c38b5735c39dccff8f476fdd39566539daaf0
Signature (Ed25519, base64): FUL2gSzhz9Sfb/cpNzBP+NG81ok8lIZz5dcSW7aZdNNlnAUoaGRoxgAlmf9xVWDvOok8iKohVhjuEmhYA0FkAA==
Merkle root: 49133e6803d24035baa1544a5c730db93dbaf832df48f680ca855944337404a2
Merkle path: ["f1cefb10a550a9cbb9c08337fcd2db19130bcfa902d9dcc93f8475708eee4877","e3d101b3ac83b2ad80fcb13db9d30818376cee14bfb1c5c0fb8f0562a0e62f60","4a794b3231a46422646bfe2d8be32ea010a17c44753c6c2ff7ffd704a9cd0f1a","cd63b1eb625a9881bac520d3022baed8637b64f6adb49ba5bab69c65180004bf","1d611e506299f709bd6969579ef062a12efe6bfe9f6fa5f73711500e0667f51a","99f3aabd006e544cd091693cacd72842731041e440a9a644b1531ddaffaf026e","5b28f2082c89748919b75da33dd1968d35900c6f451f823caf9bf36e2aa7c232","6c556967f2a40a0c1654cca3d927f50703993209851afec09292d7ec4a719154","e34360194da630cacc931b490dbb791b2e7c0c3d236df3161e283bfa0476b77f","99a0598d33328e634f8d315b4a0e9518a2a4a5b80bb7ea2def0981933c901e01","fca04f5a5a55ed2372386a1f25fce476adb7984b029685d26c1d54dd62ea4f50","3cc595f5376b7c6152362b2175e27a950acbbbf3965898d4ea5be445e3165082","573e30281798543ac2707059ca3c966f21958c0a972fe6cdc3a54117b3829e49","1fef2eea1ba7233240a645d2d99dcdcc4e3841bf30f06929c9f12592e46a0c14"]
Anchored: 2026-10-08
Public log entry: search.sigstore.dev, log index 3139760477 · entry 108e9186e8c5677ac88a…
Expected log hash: d54b6e5e20903e9be29e6a5973227ee9b3dbe61bdc0fa6481a5788472cd5976c 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":"v1791428432986","kind":"published-quote","locale":"en","page":"brand:lohnsteuer-kompakt","quote":"The app is very easy to use.","rating":5,"review_date":"2026-06-18","source":"Apple App Store","source_url":"https://apps.apple.com/de/app/id1586330607?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 (49133e6803d2…), 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.