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.

“unübersichtlich was bearbeitet wurde und was noch offen ist.”
Google Play · 1/5 · 2026-09-06

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 2893887498

Proof data

Record hash (SHA-256): deb9d2fdf61e609de8f70368efb79172b2f2f7668f5f9c5c8800eee61a1e71b8
Signature (Ed25519, base64): HP6rxywTpUs7HVyjbkKU6LJo72UZbtfVSxHtZ+3iyMac7FqC9GfVlWpUCF8GKApNUijc77OTsI/yy9m+ENOdAQ==
Merkle root: 2f068f3de56bebe7a575ba4a979c9244445d2350140e36238e088fa40fbfdd88
Merkle path: ["deb34ea51ea669073f45baf3206105b6217e718e3d79d8b4cd059ed8a8d60dcd","85976a5bcb8b4b6cc3600fc81c6f8e9b950a548b9ddec13bfe724a4b3b75c97f","98d98050159151d1e22ba2a71d501e5084686281e0f9af584574bf37363eb8d3","6fdfdeb28e276767ba67aebee60e0a0e68946957154ac131aad6ec2b15db3d92","12d07d4f4a37991fb4e407c5d93921deb4ad1ff41e484fdaf2bb5e04e033c7be","5098df0b82e91fa23fd165abf472abac9ca72ca4650d4006eba60b787d73cc3b","4e8936e54ae31be14af8eb3290efec8088584a4332a570ac9ec06782b561285d","5698da6d9000ea47dc79b4079df70ca4af6b8452bead4984f67cae278b7ef0f3","221d25846ac1dd00ccbd655a395df71a3fc8e9d1f792550a74c83599305d5d73","f17622b1967e2112f90d2f65b49de6021f217962cdbc46306e7ec96302911581","7aa45ce6be7da29aeca0302d172ca2874a01f87e6b4addfd75180817d87f4620","adfb7af951ab6d82fe2ac7465e5f822234f3eb32c74ff914d3090db1700baa73","34bf35d805c4f7af315854dc10a7a10ae0ea054d46dee40b360c3f04f8b8e60c","58a3dfc9ad8696e92f5fc9960e9c6bc4cc04e270091b574a948593298b33d1f5"]
Anchored: 2026-09-20
Public log entry: search.sigstore.dev, log index 2893887498 · entry 108e9186e8c5677af79f…
Expected log hash: 90099e0300c6e23b62e79318296ebab91bff130379d248ada57f044f77e72ccd 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":"v1789796056710","kind":"published-quote","locale":"de","page":"brand:concordia","quote":"unübersichtlich was bearbeitet wurde und was noch offen ist.","rating":1,"review_date":"2026-09-06","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=ch.concordia.myconcordia","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 (2f068f3de56b…), 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.