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.

“Klar, einfache Bedienung”

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 2632025295

Proof data

Record hash (SHA-256)

0907384af5a9c02c9522cb90e531bd72671616b71ef37de447b1ed06de91c91e

Signature (Ed25519, base64)

ac0365D23prFFPXKwy1MRU4yFPH5RT39aM2idswRCG5Xr/sJF348/J4V3lO/53dGHrvtqlDmpMG9H8BLtiN/Cw==

Merkle root

fd6fca9e7cef37aada941aac92decfcc64f6ccf1f80e46f326058d1dbea3be25

Merkle path

["09091337be85154de594c9d3996e89d237cad9210fdbcc907e07fa60a791cfdc","2f55d6daf581722d59106b433f22b910a37d792c9cbb43fa949fa321078242d7","8a954aa6133afccf2f5a00e41bb3518e1a1ac56f995bd964aec2a24c05aa9921","198e26eb5cee9258b7c99e3cf1d5edb6831a328c5fd69034a2f443777d711c52","b87736d0c873aed4639a7b108397a53380566215ec1935535c967b6ddcce064e","cdf2d950b7c67e7468984ee4c539af2a02dd1e7083bef6a30f093a58dfeef231","8623c1d5451b5b4d9b84a11d00c30e9181ac0166bb68c1b92e52a6bcfeace8e0","042e14f10b0b0ba780804b1d3f8bbcdca82616e1dba3c8f046e71f45a9e6916c","07849cd765460c358e9936a7692fca6268c45224d6b64dc49eba3cab71cae41a","44488c47d219869af83fe2ff4d4262bdadde946a1a948f939ffa754b85fd5ba3","77632be5cceb5febdd8af219ffd23d5ca14528d1d5fb1f2ffa88ed55dd25557b","9920afaecdf2c0fe347b654bebc1ac5233b2ab1d10b2ded7a1a817299c6d2453","f88aa868377e782be92c7bc17cca7fa56bb539fff729ac4b230ecbae8fe3bd50","af8b7672f7140c4d5f8cf5a204256eb8a0fe0ba6770180d832059e5b511f691a","d2a30b01208ae5f7745e5c8a474c1f34f9628e43b7a0d1b0d1ac6b378b7f866d"]

Anchored

2026-08-29

Public log entry

search.sigstore.dev, log index 2632025295 · entry 108e9186e8c5677a7e39…

Expected log hash

327cdca6f67e0b8900de427ba632e65f297b0edb716ae3a08de15ff81c0cf3b3 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":"v1787971088504","kind":"published-quote","locale":"de","page":"theme:proton/ordering/de","quote":"Klar, einfache Bedienung","rating":5,"review_date":"2026-08-12","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=ch.protonmail.android","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 (fd6fca9e7cef…), 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.