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.

“Ob die Maschine belegt ist oder nicht.”
Google Play · 5/5 · 2026-05-15

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 2948162176

Proof data

Record hash (SHA-256): 245eea4881f36770ead624a00b5789e9ef87808e5fdaba435280cad886ac70b4
Signature (Ed25519, base64): OEHFBfu10R42Atvje7E+eZZreix50vBo9yIBH8S3uIDNOCE2mRo+8QZplc1W0M/nztPUeKHsEiYbFzAnVlRfBQ==
Merkle root: 5397210619679ac63434abd334c13f5aaccbd1dd184ad9d8cac5ebeceaa346bd
Merkle path: ["245e5c019a03d208bbacb8871f2914e43208724059e724f79e5dbb7f25405ee0","4a76ff02aecbf3d3f557f9537ecd88353d918d980a8d424317bb682f94a3cda2","5ce431bd36cf10a308639ba60254648ee65f063743ff106d8282ec357370793e","095375deeb5ebab2e0a8c77aacbd38a2e70cefae4ac3a8b2d506185f00bf7407","08ecc47a60e90817901662aa76efbcbd12843e9e3f9db45117714610b601942b","8ec95824ae0b095e64ed51ae1dd1030edc4f23df309eda340fad4c0b4e58eda6","2fcc5bad9fcd47af369aa339133218b1e70aa3c48db8ad1cf21d2f2c849a0df6","13f784f73dcc3832d57ae0a8ece1148f7b91ffb1719936645d2490a58e3d2040","796b146986afbe6a3d9492af03ba03da062d674728722fc548789521120b11b8","8a95755cc5c2521ccb2e1e885b99e9c4eec5dde7165a00c5828fb48cd67465d4","fb7207d1864cbabc2caf8800cd61bf9102876b172e9c6fa2008dd664f70d8858","9fda34f84101ef4835d243a0e65146e359d04cd03e433c76a0ccdc532f415244","cae21a1e2eba2d9a014f0d727cffbae7abdac416604f893deac5f07eef84e3ed","e892ec98bb605644ecd2848bdd788a136c626ca940d293df8f2f1ab99110b2e3","eb97a4ce74ce5f5fa16f1703481b35cd770316cd3d34167e9b76f4403804f896"]
Anchored: 2026-09-25
Public log entry: search.sigstore.dev, log index 2948162176 · entry 108e9186e8c5677a61d4…
Expected log hash: 5ff8f25b7934b5d72d363d6805344624efba4d637f2c851f11783b259b9d81be 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":"v1790226990092","kind":"published-quote","locale":"de","page":"theme:schulthess/quality/de","quote":"Ob die Maschine belegt ist oder nicht.","rating":5,"review_date":"2026-05-15","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=ch.schulthess.mobile.android","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 (539721061967…), 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.