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.

“schade, dass die App eher schlechter als besser wird”

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)

55742db4380b0ee0a43d48bcdb3c61fd175a4a6c695940c54b85dbf1e5564247

Signature (Ed25519, base64)

2w2wgL0odOi+gaeKtkCCyJJllkZUTpMx2DDUFCcxu+VEgkDvFw99jRlFl8DyzBasxRfBgUnIfTGq+O4Muky/Ag==

Merkle root

2f068f3de56bebe7a575ba4a979c9244445d2350140e36238e088fa40fbfdd88

Merkle path

["5577e0c538b5c6a771f0fe05759fa7d3d23dc6618d9db18a34ede05ef2e1a526","3ed15f033a5770382ef6009568f385f616ab99e897fb3ff0273c410282a4f80a","f540177ccc44710e8044f71262845cf4945337b14e7ecad50b94798d017dcd28","0230c3d8fa7be24ffe7c20b9aa890bd407d92d624b8abd6e9b65dd3572e3014d","eec6cfc88fb485035278671942cb5c0710c459a7bff6ca3ac4b686786d1fc3d4","05aba41b635b3e4eee8dd2fd178b1d57c19552eb041a10fc83d21c964c4a7ca4","c82ecf12e1eeb71800b169517165241ec4598551df7aecbd41b28dcf28309ca6","4c1d2812b37ba9f4fd6a0565c73d2a313fba7ad6def02a0ce2c4196977983177","343656370c9d0f1a89f109b1cf03e52245ff67c569aaa8d995334ab9bac6125c","6b3e2bce1ac9ca2a9257de122da2c471410b43cc705687d4d595ffdc1885303a","49bbbf804812620aeb11a2e2155b2fa548b38360b9d358bf90988e833f01e60c","ddad24b033c054e618d3abbc2cd0303f49551ff001beb238cabbc4b73bc7d951","d1960e2348cd4a71c41d10f1fdeb248b829ec3849e0b1a948157b58e7b767ef1","f2c4543851e26fd9d1e3721e592d66b00f142e537786e975d115c14b9cb61c0e","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:atupri/quality/de","quote":"schade, dass die App eher schlechter als besser wird","rating":2,"review_date":"2025-12-16","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=ch.atupri.myatupri","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.