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.

“Schön und gut dass die App erstmal kostenlos ist”
Google Play · 3/5 · 2026-08-10

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 2647682298

Proof data

Record hash (SHA-256): 100fa43b04433901a417a2367e6b908d27bacd9bce0c3a88e478ab72721afb83
Signature (Ed25519, base64): M7zE6qfSDr+ACRbZ8NeZ28vVzgx6Nbd1JkJJUJBSxvmaYoMS1NQuNZchsPOEwabqB1YadswirkfY62SLLh2QBQ==
Merkle root: 01ca9a914d9cb7fdb6291f3c0bffafc2c86f57c6ac9bbbe06ca1ea757b85fdea
Merkle path: ["101148ed1051e40ea297bb790e6240cf9481bbf3ced4abea77a8cabe9f4c1b0a","3712a2824f28e58b69f1de9fc115ab107fd63a328f987755899dd8d28fadca12","5677e46536de956b98a9c2f9e41f301e60201b2b88afbb753fa336c76858b041","fdedde5e6e5f8050dbb9c972a322551e5902a733a949a08e25ca57b90de422f7","2787304f46c9955b30f019b274ec04c72fa733a23f594fe7c3e9d24ffa45d761","357b6b12b1a24c4c640d289f9f7edc157056ba647b76e49d649351b3ce1a00f0","951d626d9a43787e99f3fcf0e9fff345e91456fc2f31d5e9e1c944a8a59742be","730a1ca26e413e7d08aa45246c0a31f8b68f9880909b8c8797b9473dfed7bce4","3af65684372c5aa7807c9b330610044434e4df2992ec5797305c7b93a293cd8f","4cefb17b7a70e1cbb681f04ec4ac86afac8602825343b51ad998ba3c8fd55983","14138cf1dd8d8c2508a5f0d8fd35ff6330b8bdd1199e28dd072b2363cb82b87e","122878c07314ad3cc2a2cf0ce355b0a54bc51d36abcbde0759035a88c6991648","c94b2deffec3728e453fee18e0972292972c1acf359c73e609f82c71f84f6262","581f6e77367a390c6be41617812d1bc389d35491529f5e765ef954249e5ece06","e1421d191a62564ab151ed4f3d8990bb670a4cf79ef1b438c8dbf253dc424e03"]
Anchored: 2026-08-30
Public log entry: search.sigstore.dev, log index 2647682298 · entry 108e9186e8c5677af736…
Expected log hash: 1dfa1bea15f2cfa02080ed204683ae7d0bc0936afc7a7dabbbde7cc96ee2bc57 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":"v1788066809618","kind":"published-quote","locale":"de","page":"theme:acrobat/price/de","quote":"Schön und gut dass die App erstmal kostenlos ist","rating":3,"review_date":"2026-08-10","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.adobe.reader","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 (01ca9a914d9c…), 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.