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.

“Alles verständlich gut erklärt”
Google Play · 5/5 · 2026-04-14

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 3248278454

Proof data

Record hash (SHA-256): 099f228d6f6f6a325ec33121c3e036b3b95864d79d1a72d1af55abfb6d201a01
Signature (Ed25519, base64): 3YDJ4OEPrzEHXSfXDkRo7G13tLgplH/zRIUe1SqcMSdhhRUhHpRX/KltqCLDmir7GCFh5nAfL2KKBdhM5QoABA==
Merkle root: 81db1abd6b6e636da393518bb64e907fa9c48581b44ac2be5a9e74d02608e451
Merkle path: ["099d443b1322d15369bc2b8b5fea3a022d635f109c881e7fe0fcaa1c9af4a55b","f43b5638bd2e736803cd8561b00e4d4e5894b2cb0e4f2c3a00b2b3af3c4e8e67","2faccc51244c05c3fb4e4c68f82dc6268fd70d763a2dd063f9275ccd55dfca41","2731df897392aa146326d6b3f90183268e322d246057d43d9238d78fe42d5b22","a76b4f6566da6303e6a63e697d0e6aaabdeb63a2b3b2bd5f13a275b82bbe93bd","1e4483e228911a47a7f6f3aa18f9edd7284b60dbc660e6248f33da97754b4331","b68e309f569895f1baa0469a6d74f91d9e38ca24481f4635cddaeb893f2aca9a","ecbbb1d2ee45d1fea26155918ae1f8bc7247b2839d7cbb6f9dc51c64656ad889","476cf20af2afe4c30b450c7b343ddc515b60f527194c8580b2a122cf6877d905","80c1b1f10d8bf284e2787ece94df09442da637212ce15d57f52e414d13828c35","9008bdb00edbaf075b061c2195544fdadfcef10f8389a786f7422f7a7fa7a2d9","0f8ab31a8b7f9aa6ba4ff019c72fbe9792e5837d40b3bad40ea1cfb0cc79e40a","4fd1b36929337d346b3723be273df6d7588bc7b080f058260d538b3f309857bd","6fa310e475466f0115dd6b7ba199f23e915f2a513e2610274356ac5bd367e940"]
Anchored: 2026-10-14
Public log entry: search.sigstore.dev, log index 3248278454 · entry 108e9186e8c5677af67c…
Expected log hash: 4dfbbd25ce402c4821f7e2d50b18e091e9a30465f45669967c545fb71910f358 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":"v1791948368672","kind":"published-quote","locale":"de","page":"brand:acrobat","quote":"Alles verständlich gut erklärt","rating":5,"review_date":"2026-04-14","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 (81db1abd6b6e…), 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.