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.

“Einzeln Bücher oder Teile von Reihen werden ohne Ankündigung aus dem Programm genommen”
Google Play · 2/5 · 2025-11-02

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 2542443729

Proof data

Record hash (SHA-256): 7f57232c2b75fa417adee14ec6ef1f05f7d5486fbc3fa79a67ac77f8cbc33dcd
Signature (Ed25519, base64): S2T4pQu/kbK8J7wlBHqckjy1uJ+u3rY6wetllzjQzrYNh8ysI0GJN63YBXTt5dJBrLVDpYlH0BYj98LUSc4kAA==
Merkle root: 4354cafe0e2ee66c200238a4bfe005f997e761de26d9e528ed6c12dfe1b33129
Merkle path: ["7f65ad5e876ba1211199f654fef6b76e600db24ae65b3d6f04dc4af8af4e0377","94d7fd82c435cf684f8b068362ab20758963c7f504c05f56eb92b8bb8856e2e6","4b0624c9d3da4d051b32b961f38f0d4d8f7217df5f5f2b2b59c9e1b8db757a96","e7ae6f871e0042575386c6548e5e0d15e534511090cd4bfea4e6461d698e15ab","54356f13917ed0efab7616c38b3afecdf0e901958c1c58d62e51d3bdc0ac8cdb","ccf2998dadf6762b073529978d57ea6b16e6910fa170da7e519c202685888d3a","93bd9697951c018b46d55c91c46c203c92277df98249bceaac1313ec0b0235e4","0be5df8767755e0edbab7ac6fa2beda58a3266537a9bdaed611489ef3d541143","7ead98ca1a42ba3bef760ccc21a61a4af5b2361d50dfff857ab62d1f3f2e4eac","6fe392e5ef701ad1fea31a13b23b9d2e22d9142cadac81aa6ba49fe4a872b39a","3fe4575d5a3b071467a9517e6f649b888395325fcb1a1ba1fa39bba042e7ed1b","5a5b8f0fd48196ddee61e581ec38cbb2d12c7448271c1c91ae6b2d4ff6c59a35","58001a430d202986e5fa4168d8e078e3b00d2bdf639864028966a0604dbcff6d","eb13252a020300a13cfcd1aad747dc15bb314823d4af7c0fa17270669f143f49","16ed4be9ece293c235c5510e2cd19a05055f034548e73c12f8a9947de7b32591"]
Anchored: 2026-08-21
Public log entry: search.sigstore.dev, log index 2542443729 · entry 108e9186e8c5677aface…
Expected log hash: 1f12c9d846c7a9fd8aeda84057eb4d8f639bf78886a62c6290a2a60cd48e0812 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":"v1787280389476","kind":"published-quote","locale":"de","page":"theme:storytel/delivery/de","quote":"Einzeln Bücher oder Teile von Reihen werden ohne Ankündigung aus dem Programm genommen","rating":2,"review_date":"2025-11-02","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=grit.storytel.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 (4354cafe0e2e…), 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.