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.

“mit der app bin ich restlos zufrieden”
Apple App Store · 5/5 · 2026-07-15

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 2543383844

Proof data

Record hash (SHA-256): ffa44ba2da0b6e25c1231349ddcad4e3d060d5a37d5a393862ec3e20a4c1d075
Signature (Ed25519, base64): sfeRkjUbP+9GHM10WozbsMEYaox8/dvkQd1rJdvre5Y7WOcYpcMW50blQEx87dNUg+acORWcqsIkxEg+9S11AA==
Merkle root: 7252afe559009950531df937e7edc9bd1c57cf28a24ed7f6c6613b65f459eae4
Merkle path: ["ffabb060ee4fb6086831a36abe68b67ff429becbeee9fcc5f5d83a347bd3e282","cf87dd5288bd891f833d69c182ae3e69dc67981e3b6bc73aa0894e6689b982b9","4347cb8d2e0ccde84c858cb25194d41e0fbe636567f47893f39a5b77e77732fd","cfb5c1bda805970dca96446c97c2190a8bba61d32fc86c01ae70288e29dfd501","1dbec77bf7a515647b3bd232527275ec8e3423b6b5437ce57d2d6b7296012f21","7d296ce3b12ea933494e50444e9e9cac7f3621b9cf3ab07454ce9cd86889b8b8","86d9a991fef719da28fc3ff7bf129744ba55d54224bd52edc6b3260e77750642","9d6c43eff830eb4a55e28f4f12e0f516d883d1f6cc63083ece29eae1db41a259","cc16e5787a9e78c1daa6e0adfdfa8f418aaba2780f17970e3c493bcd54d07beb","0cb2be899eb0e87e0c84c8010f32540c0ff4f02ee38f8970424d4e3f7d0d393c","e3ea462a17033cf2b2bb196bc5b07383fce456bc3220c1b5de266e7e78fd5dc1"]
Anchored: 2026-08-21
Public log entry: search.sigstore.dev, log index 2543383844 · entry 108e9186e8c5677a6025…
Expected log hash: 65212d488cd7bdd0d67aebdd70bfc57f4b622fa08b8179427635d69eb7ec385b 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":"v1787285599851","kind":"published-quote","locale":"de","page":"brand:zettle","quote":"mit der app bin ich restlos zufrieden","rating":5,"review_date":"2026-07-15","source":"Apple App Store","source_url":"https://apps.apple.com/de/app/id447785763?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 (7252afe55900…), 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.