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.

“Sehr benutzerfreundlich und funktionsreich.”
Google Play · 5/5 · 2025-02-06

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): 2472ffde2c0166d15daa8b98cb814c0be6f3b89ab195a3d430a93418fd508fa3
Signature (Ed25519, base64): 8uHtN5IJEY4vDFqTPzyzT3ROYLxEybh9giAW8HNqfuNtk00RP1qqFiRMBQ+aO9eeZbFMDuEIFZMnTLYlZ3dtAA==
Merkle root: 01ca9a914d9cb7fdb6291f3c0bffafc2c86f57c6ac9bbbe06ca1ea757b85fdea
Merkle path: ["24730a7a5d689af839c2e45959b151236c75f307bc7a57d6fd320c45a70a20fe","1609ac4ad923b86f76942fc3467e355d0bf634beee1238bba402c0a988fa2561","215d577d3d8fa22c6ed93672e2627e228d5236c033f1e9c721c12819c41d9bcf","e8a1be1dcc20ed7571e14845cb5aacb69f7aa76a7fadf139cdf3b3d7a3879cfe","6e49a1094d9daaac85a6df45f72694d89ad2329f6a784c7d7eee60ace2133e56","d0bbf0b851e99eabb7888f204a7433cf1471ce1be7f9173b34ba63dfb154ae14","59ac47fdd7400b62b3f6705d47c81d6c7932d03d596d1539a911d57af29340b9","b6120bdfe44cf4f1e03f0c46a259c2c100f52fde63e2dcb534a4277833530253","962c412a33c74c126a3f779447fd2ac8fdaf40569798d89e067e0ec8e183746e","f944ddc079bad0594248636ad43d564c9e4a8066d7479f759c49a406f184fbf3","8f16734547858cda24c19630aae292fbb90b41d3fb66b3d367464924b47eb35d","6aa4679891576e8e9cf2403a6f34460e70ba343cb1e7b5938f1ea29d2eb16521","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/fit/de","quote":"Sehr benutzerfreundlich und funktionsreich.","rating":5,"review_date":"2025-02-06","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.