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.

“seit dem letzten Update schliesst die App ohne Vorwarnung oder Aktion meinerseits”

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 2524422814

Proof data

Record hash (SHA-256)

6205db2347ba84a1ca8a0999ea7585874a277d07a0719ca364e9c27a7ae5290f

Signature (Ed25519, base64)

FkJZumYyPiyP+LLg2d0vwK1QA8nNDI1a9gJnoLh/SNnAsTWWecX38Hm77ouZABETTG9yjXtlzsddSiokwhFZCg==

Merkle root

f8b4f722de05d6805a889681c3818dbde0f5141f0c8463f2762c4a9a02d66a2e

Merkle path

["6200d1a8a2c9b598e2fd1be37157f849b6d0c44ebc5650ebc4dea87c1ca427f2","8541b6bb6a6730d968dff9799c02b1008a371be3cebe3cd5d4298875959d9ced","000713212f6384bd2d6e652f9c1800142c3c5d222e403a676e9706d5fb1c2e2a","9ff05fae3ad56e40b1547faf3b8855accfce98174ca6b9843428c42f39504f28","446758fb74a6bb5403703aa00e164c80094452ff6d9dbf5642ce42c08d1cbf39","7e49124fe9aa544076cba87a556478d7cbde9d01c31ca2e6fb2708d4121e9625","4ba545466c069ecb3a1290531a8042fe9cc9c2cedad8ba22bbf74dcba177583b","b74c140267ca3148b98740368c2d718be71fdb87f30b83dff2ae4985c5889d0e","99d5d86fba3fe80ff3a575ca992cbae70d7b9f65f2a671306e2cbd93433ee1a8","d024594d4e896d68d27b4e6b2fb7377c20b763aa4fb4b31552befee0b080810b","a7826dabc1163f766e566dbbfe78df35c72978bf6eaf019668880078fd2cd32e","65cfffde75cc4157e68a31b9095885e5e2f7c48fcd38da5382472ae6d6bbfef9","8268e755b762bada765e8e291a19b3cbde03b3f280d9dbaff898a9eff2afda2b","d5d0d1ff272e71289363999b30e05e232e422b6802e1ac3145abd5303dfd3ccf","1d6688e1c2658422e04ab99dfb5c8345ecb419dd1f8c6994b4040572f5b4ee4d"]

Anchored

2026-08-20

Public log entry

search.sigstore.dev, log index 2524422814 · entry 108e9186e8c5677a9741…

Expected log hash

e042bf60ab37eb8951abb7a408cc8c7483ec875b9606253deec7a67967130ae2 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":"v1787192294432","kind":"published-quote","locale":"de","page":"theme:threema/quality/de","quote":"seit dem letzten Update schliesst die App ohne Vorwarnung oder Aktion meinerseits","rating":3,"review_date":"2026-08-09","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=ch.threema.app","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 (f8b4f722de05…), 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.