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.

“Es war eine tolle App, aber leider muss ich sie deinstallieren.”
Google Play · 1/5 · 2026-07-15

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 2657230937

Proof data

Record hash (SHA-256): 088ebf82d36d94aafd8eb26606619cb5533d503236bf03a00baa4e3458127fac
Signature (Ed25519, base64): ZVfWFOEzNQSOyr1ajjVEC40xyxPXEIpvLOrLfSAhiQRDXiWjRWMvaBEuHtYRrOIWh+5LjnKI8nRFwgD/LQZPDA==
Merkle root: 2915d94fc718eb48f67362a65d9a83b80dcd4c926c786eb2e38f4d8ced0439b7
Merkle path: ["089c0cad16167db0fd55e7564c8058dc03a7963532785840e59189fe9a1df81b","680999ee39f1e9a4773faedd209056718744b09470c523c70e092877aa9b5ffa","f1d2c4f60876549d0fc016357a211a025bdd8fa37d403c2bea4c790f39e00a55","d01a89f4f7743145f7dd19ae1e39989e629c16480951ff303f5aa3d640ba7288","12e3febdad61d4f3a512b2313fde4ffdb6e9ee369200c91109d29773c92bf022","274d2d37fc59e565506a041f2e9668eb0e41eba2f4e63fe03590cbd5e380a2a0","65154dba925b0ebace8748c90f010c9047462361d6890326b3aa3d0185b77bc9","f86069860f00d9b21a018945215845fbd9e04103ae23e70f15503b1439439419","d8d17e55435044c1415072da5847794a4484990d02f6383d18db004c116385b7","1af242205f1616783fdf4711bfa2cadd90cfb6cedf680253f695a0f615e080f6","9762b26d023c4768e29dc834680a7a93f214deb59eb948efd53aac84e79aaae6","a67e5025ed174812cc85ffad7fb608d1ec0e7e7057369282aa8c38f78ecb6fb6","dbdc65b9f91ecf7a21686f427f84950f149ff3313cf7cdbaf938355c0225fc98","5b8a2081ec81ef2101256bd7209457c75dcc1be14257b40200d45a88003c0c32","1936eb7713ae59e20354a37b8314d3745433b23d047da205242414a6fea32b67"]
Anchored: 2026-08-31
Public log entry: search.sigstore.dev, log index 2657230937 · entry 108e9186e8c5677a80c3…
Expected log hash: 1d9aec1bd239e45b6e622f366eaab4292482e627111ddcfb4c651bb1e08e92ad 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":"v1788143889053","kind":"published-quote","locale":"de","page":"product:smallpdf/smallpdf-mobile-app/de","quote":"Es war eine tolle App, aber leider muss ich sie deinstallieren.","rating":1,"review_date":"2026-07-15","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.smallpdf.app.android","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 (2915d94fc718…), 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.