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.

“Diese App ist nicht brauchbar so wie sie jetzt da steht.”
Google Play · 1/5 · 2026-08-29

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 2890214870

Proof data

Record hash (SHA-256): 31674440e5b31da43b93f921e51b5a74e092c6f4ac654063d9977653afbb9336
Signature (Ed25519, base64): xsWuGi83YpOuHhmXauNe2r8nbafonlVrZplYPRsARaARVSaIDyXITQli93h94+CQ45jOiYx6nFaLzOD2CgpfCA==
Merkle root: 04b39eaa56e1cf8f75dc8eac18bf6942167c8418ea731a7471223f0be60e3e6c
Merkle path: ["31678dc5f88189af7481340957138bf0dc412e7ea1b566f2cd2f7c5337e1fe09","e40e63dfb12f50100c4cd4b50e552cdec763c7ece501e51cabddc99a6dc41293","e2dc2b46bfd34b8768a08719c2d44797a8b76bfb56d1c9d6d8cc3efd95c6be22","31bc394fec6441b8ba39318476f195ceead366ba42ca4ef01bb7a90f7396269b","fe3baf02d066e9ccaa6166738a62e3b0575813bbf68c874950f8ba54ef8b9d3e","904cc08c81fbf060b9b3fd640a0cdc6af1ea68dd8bae0b4717ee39eae1bf2c3b","ab8721c726edf9482a61fdd317b2e5add417cfbef9a3bb4f3086e8c4c6cc5dad","d58f9cac402376a02c5d630b0daf505930223d9a96280ed41f83ad4944eb9faa","506100c4425d5b5ef1b09ee536f540b699c7e0663927ad75d341e9e8431612c2","cc9c781e5f1767767a7dae5333bce2f781648718ba0c301ff21f73430c654ded","4eaade293bfae8bc3e468b3e6cd7b35c67ec49936a7402da739e8c87895c348d","1ad6612a0124813afc4e17a95646b8e5d220f1a8f5fce4bcc45a7c4066c91d56","20c165555e0648a38228ca1e1537b9ae7190212c574bb7d3e31e0fbe9d9df8be","9301977225a9c35b65736d9a69d1b0c73f0986b621c92048df03fd9fe11c8db2","695aed3f647000e14ed985f8c4d6045987ffb913dd12c814d6f9a495d4d25fd3"]
Anchored: 2026-09-19
Public log entry: search.sigstore.dev, log index 2890214870 · entry 108e9186e8c5677af53b…
Expected log hash: 1f3acef0f063246e051bf412e40f4279cb96ed334ff7b0647a13320c1b31c4fa 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":"v1789722569406","kind":"published-quote","locale":"de","page":"brand:swisscom","quote":"Diese App ist nicht brauchbar so wie sie jetzt da steht.","rating":1,"review_date":"2026-08-29","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.swisscom.tv2","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 (04b39eaa56e1…), 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.