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.

“schlanke & funktionelle App”

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)

3263cc2a0dbb242dda9482288fd1a8ba254835f9c74c236e52c8c49a200655ed

Signature (Ed25519, base64)

92nnqvIicD1Kvepq6j++KmzU+BI4T2df8a8aoXmQ7oeVDhPGj9HE7B9sJc3xdsrsWMSVj3V2iQrbJJ73eEK6Bg==

Merkle root

2f068f3de56bebe7a575ba4a979c9244445d2350140e36238e088fa40fbfdd88

Merkle path

["326520dde849473a46817fa57d7954a614f0747d357b4aa0d0073a5c0ab851c6","73fff2226a490473f50c654963bed9323ef792c4f073c62559467e85fa818601","9460ef2add12bcdac2ea3d3e8e64ae61ebe5abeb4caade1b5cedd384cdecb2f0","9e8292e7645f9dcbb0f7e518f8ff90215616c2455e38a6539f2655ee5cd28241","8fd5bb2df5833ff09214a094d9c677e2b2f2e33e498839b551643179575323d9","e56fc05e5d6a544524af88345328d29a149e5d6679fd4dfbf3e471adcbcc89a2","df61e23de1ea15b848d31a1c7d0cbcab844bef61fe2b0deb6ba94dfeb31b1487","58c619061332337d12012eb51f3d824e8a2c8413e73569708555b2eb929cb431","b622a2fdfab1ec87a2a4a7fdab2a1f7d238d81d255700ae7db920e1ded5bf66d","398671219ca23f0cdc017271e5271c257f722c2474bb46e50ce96077c20b6054","198ec620523c93713c12a5fdef13ab3b73c38312f8c69950c0a24237f8311f64","ba64597144ad55469e4304807853557493bdf960abe724dca5437e442c223165","67b7564c01b814702c17628742fb6a8cbfa0e8a213c06511e31c90cf9f3e3578","03c5fc675733b417d9af5e071de3aba38ae7f09fa5781cbd0133ff9d4e234e36","98191c82333f4385e47f318835e01d44ca8835262c6d0df40edfd5f6a4dc5c19"]

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":"theme:concordia/quality/de","quote":"schlanke & funktionelle App","rating":5,"review_date":"2025-05-26","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=ch.concordia.myconcordia","v":1}

Verify in the public log

1. Open the Rekor entry (pre-filled with this proof's log index).
2. 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.
3. Decode spec.signature.publicKey.content from base64: it must equal Citatio's published key at /.well-known/citatio-signing.json.
4. The entry's integratedTime is the independent timestamp: the root, and with it this quote, existed no later than that moment.
5. 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.