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.

“weil man sie nicht erst runterladen kann und dann die Lizenz eingeben kann”
Google Play · 4/5 · 2025-12-01

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 2543025731

Proof data

Record hash (SHA-256): 849356d6cf459dbfa9090ea424a006193fd28d619bb84eea73cf984aa9d1784f
Signature (Ed25519, base64): WWkKLZrsETpyCBnrO3wuRMr1ss4biSDVwTXM13xfp1pAm9/yi2/xKbkb6lPQsoGRTO3iKT30Mbu+BUPxLyJ0Bw==
Merkle root: 172a3e0b3c9f8b02f52318e01ba6beb899404e00e91c15eebc4dea38467e1404
Merkle path: ["848d3d4935cd397c9f2a96c56fa6eff673ad74228435736efbff29478286f409","273509e2f1da1e75d7b52ea987b97045963d63011d75a7fad49e825533448f39","9fe7f58e6d08a461bc5521b9c572076c280515730d682f4c8b4668c3859e3940","03dafa5a399afee1cb1b2fd59f4abe459cb790d4e1cf980b47b7c75d71225ac6","d9fe80ec52ba579fe7ff98ea3f21cb2136c312a10a5623a9a6aee1f534b157cd","94ff7a5ab33521b2855a5e9d5055cb5c68988b4a44164f8b604432b3ac58ab6f","ac8a7a3421c3cdc4d0369f8cc820b69441663fe9548d96e65a36591be4dcae3d","5fd80d8197cbde61c0ea4b300b4f73f32e9df160fcc4a1d327f23831f392e0bd","53bd1bcf92408e1f27854a7be85cff21752ecd3d11fe168be1ecbf5df17956d2","946535eafac351e3ef3f46149d636e8c5d92df9ae44a1378c1341284ba880ef8","f390e3629980aa0ef086d9e906034bf3cdc552b08df994863107231c8e8c7210","d9da6aca4e4c21032b1962e1d2b00d61ed68d5ed8468ba2aedea414eed8a67a6","f12a899e5c92b32cfe903fadd591410ed4da016670fe0a40b993afb550e2e37a","cf4d3887edb33be9d7a9e64011338d9abc8444e06d1f5332550f7686a2c1727d","7731d0ded4f51d151ea3e84474d1e27a6279e8756420c93cf5fec0abf7f11add"]
Anchored: 2026-08-21
Public log entry: search.sigstore.dev, log index 2543025731 · entry 108e9186e8c5677a8971…
Expected log hash: 19ecbe4a66d8adbd7c6057dbf6ed9be73485c248dba1e0c595279a908b3e8bea 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":"v1787283443958","kind":"published-quote","locale":"de","page":"theme:threema/billing/de","quote":"weil man sie nicht erst runterladen kann und dann die Lizenz eingeben kann","rating":4,"review_date":"2025-12-01","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=ch.threema.app","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 (172a3e0b3c9f…), 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.