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.

“Vom Design her ist die App wirklich ok.”
Google Play · 5/5 · 2026-06-09

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 2514297706

Proof data

Record hash (SHA-256): 7fa241d5f3473ce489be5d2d960bb5f17ad6119e6a49b011952f1111e18f4389
Signature (Ed25519, base64): YEJALeLMJX5OoErPBUsycBH4Hjkssjz046Mc2/dn8tgdvL3wK7VvV1XVki15WdLut/iVzGh1KYrrnLCMpDN4Bw==
Merkle root: 1dd7fec10002d9304505761bfad9c0f048c94d1d6a0775b6fc4291f712d4106b
Merkle path: ["7f98146154a6c19ccc02951b43d9d45d5dadec2ec8e2e63031e067895263bc14","08f90122a05021153f3acd0545471275a930b1593820cf695d91a6a8308f85a2","27ce0ee92fe815269a891c49f945f17cda8354385894fbbf342e46191b217035","2ca7dc1f706e0737b0d67b9796c1d2bfc78ebd025d5a4f16c431b84f4e2c1339","e4bf096afab5bd9a74a170f95ee4e7255135fcdcb6c72d9fe8b18939323e5b7f","b98f14d8455964ec4f56aee9ef94df287918dbd187d22aba69be4464807372d3","34584f8fa2b9a5a50803f93074b6ae40b58888d1556ad1b518e33d6fde800119","c24a864a8c43cd3d7e58807accd34b1e02de283bd39a810000d6f8e505fc88c8","83910af899b708d25b3bf65d20ba63892791637c54b7abd06435403ce3fb2573","252ebd3620f2bf0c9a86a463a38a47a46f5d5908fcec1e84b463b2d6fe38f881","c1320faa2e25a4767eee663f31fc3a2c52882150dc1c7097a6485962dda121d3","f8e71d389704bf06b7e6ce0effa24f68aa47b0c4e48c7bae4bed652a3ef1b3df","4ae35980c39d5fe55d029f85be00593c03277b5745fae784d4668ab06a3da5e0","446b814589c9564f51a341535d393ad23c1a9958834addb7d5c07c1be092092a","54bbc2d7930ffae8e416e662d825fe408002ca5c9c581c2388ff0eb5a37134ae"]
Anchored: 2026-08-19
Public log entry: search.sigstore.dev, log index 2514297706 · entry 108e9186e8c5677ab801…
Expected log hash: 861cb9c1424d2f408888a591a8305206c340f8249f4a4581b32f940ce8815405 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":"v1787126020727","kind":"published-quote","locale":"de","page":"product:acrobat/sign-pdf/de","quote":"Vom Design her ist die App wirklich ok.","rating":5,"review_date":"2026-06-09","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 (1dd7fec10002…), 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.