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.

“Der KI-Chat in der App funktioniert nicht.”
Google Play · 2/5 · 2026-08-19

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 3121837738

Proof data

Record hash (SHA-256): 5f8cab83e569df060c8f5266b528a5324c2d7dfb8f5324c79fc4ff784ba4ddf7
Signature (Ed25519, base64): 1GeSLAaMoMDOpvAWicVYzfC6c3Ato9I6YxWnZ5WtmC6tyx1Ir8QbWxIKkzeFIe/FsNlIxpXhwwbr3jdexFksDA==
Merkle root: 9d32c0cbfb02966e7a561566f948b48040888a6535c058e814428126106ff945
Merkle path: ["5f8c97a30ed13a5051a0a214d48e5a761c6499bfd081e3c3b62b0876a322479f","46139a16c46e60b84b556e65d7b7e7dd88abf9fc9bba95aab0a0182361a1f51f","7fcf17bc5c6245ae7f354f7161b11d9d38b361005604bcf0094d34569bf1b3f1","9e3e0d48ea6e7541e2bd2ef5477c07d22a1542f190dfe74e1e0c19c161e578e3","34b0bc1a3e38e32c85debf22f6af5a45c237b3a080f8980a39a9ab808f54aef5","5fddfe4a6fe763925d7121f7d4f1bf39b2fa7488b1ad6f0ad0f497950806e8a6","9c07d1ab7cdb82abd8c21dd5e96a8c4515a9e20f1803cdec3f76ef6eff056ea4","5435254f9f38c7dea8e776d1916455d43b2cd19a6fb053c4ca880b70bc43164b","d313037105dd693055abed1ec448274faf4884a6a71b5d414f5e1dec3a2057c0","2b13fe62c0b65c290e809a9e9fdca3fb229888153ad21579cd5876b84cd2d00c","be4feb1fc69f4e555826aa84bc4ba620a85f87da39269044693b9164812dfd8c","de57ce495ce1dcef2c90dbc7937bf61413a49247e13455cab064ac817fe68fd3","3fcd45228716805aa85ade4544d04e795bb1399eb7a6a00746dabb625754cd90","07b2decfe383429cb71278f9069f54d1b4f607f991c518b70357c1681514c3ad","a892fc29bb3c992428927e47e35596c876cca06d89acb4ca102f2a534ba3ab13"]
Anchored: 2026-10-07
Public log entry: search.sigstore.dev, log index 3121837738 · entry 108e9186e8c5677a0c6c…
Expected log hash: a0090149b27e60cea52dd7dc5f0abf6dd7c00feef65be2874742fff2aa9e8bad 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":"v1791340487550","kind":"published-quote","locale":"de","page":"theme:everand/communication/de","quote":"Der KI-Chat in der App funktioniert nicht.","rating":2,"review_date":"2026-08-19","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.scribd.app.reader0","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 (9d32c0cbfb02…), 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.