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.

“Replace von Text gibt es nicht in der App nur Online”
Google Play · 1/5 · 2026-08-04

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 2544092674

Proof data

Record hash (SHA-256): ff2751214f366c46af11454e0ab49341f1ad26348008a38b52d3385fece7c8d8
Signature (Ed25519, base64): VIel2pt4Qpw3NW0+Yi9ocOnW0F22/OzdqXanokzVlOLRhX5Jt4WTJ3b9wkm3cmXjYB1Itj6KxhWxnLP8oWDOAw==
Merkle root: fc0474f2ab9253f8c52a81a0b2f1ae382f5f022f9b54f4e3fe06eadaf19fcf31
Merkle path: ["ff26c3f2804741dbc70eafc1d7ad5621e711a35465274690baac86d1903cfadf","fca59b06b529dd4595312046520eb9f802054cff263444608c32e89950886751","1f1b43870990b9853155c22f9a9434d3be66a91c6844220503d38bd84422b8f6","c8a1861ea765b9d2e74a2f0847f80af18f3e44ad2793671ed9a45416169b3144","2e3fd4d1394cb256992f0c6ff2295d2d9eb9f945738aee350760d42176118940","ce1232a12e745359d91b1d65cfe765cb900af661cf5701b35323feedb013822a","e3c17f80d9b842a05af6b941b7dedde68a44db4488101176deec320847e51f2f","9752c8e73fb374559e7123e589c9c945ffccbcecc5da94d8af036d2226b50196","3e4ea39bc8deec6abac8c8b8248e676db4529531ce019e0c649cc6e65402597a","268e1b3001623292090a23da450c566bec174080a75e1131619708bbe9db5a9f","bd1dc95eebec2e3ea42202d8fc9d2d7844222de2ffb10d1cd827304a368860ab","b3b6fd3f87905e1812547bf59009605afa62c4124a0a91cd029c06d177d44441"]
Anchored: 2026-08-21
Public log entry: search.sigstore.dev, log index 2544092674 · entry 108e9186e8c5677a1b30…
Expected log hash: e3ca1014bd6a1a766a29da72cd2b9f7f9c6c416fe6af720fafa94eca555dc171 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":"v1787289954326","kind":"published-quote","locale":"de","page":"brand:pdffiller","quote":"Replace von Text gibt es nicht in der App nur Online","rating":1,"review_date":"2026-08-04","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.pdffiller","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 (fc0474f2ab92…), 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.