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.

“Whether the machine is taken or not”
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): 084a4e5ead0f4ddaa0d15b8f92c5b3e2d557d6f7c46bf144a7e694b748d6cfad
Signature (Ed25519, base64): IIGqlGn+9it3E+4CC3dPjG8sm+QUK9QkbkWXh9rysIBP/HA/mMTz2NyF1uoWHg73pPFXekyQNRh9YUmViF/wCA==
Merkle root: 5397210619679ac63434abd334c13f5aaccbd1dd184ad9d8cac5ebeceaa346bd
Merkle path: ["084cb44cdeab3726d5729d5b302c3531389e41435719dbe3283c6f6b515cf9ae","0f5a33ecba2e54c8141cb7e750b1173fab885cc87e3c70553697668090430124","093c599dd0aba86ca4c81d02c5a9306a10fd30cf7f2ee261a8198191b04a8808","852981756b80acf16ea496d7c6f9fedce5f0f6b39253602e706cdc0f38192bbd","fd3d340d8dd63fa75bfda38466bfff5f9d22d1965ccbfa20161f52353beeec84","ba22fe578036ae9aebe82a9fba9dd7cc936abbaec4fa06b98db9009cfa144125","2efe9b6bacabe10716030b700883b166913606207ae4a983ace17674410cc26b","bff5c5c7c6fbde897536549e20ce2d35e1aeca520cfc98d34292f7e839422edd","7973401a5f6d3fec2b1cf53f26a34a6c89dd8dac1c73e70978a41e39cbc397ff","c18a7c0fc4a568253c8674dcc2139af916a1d1321e0f6df857b0efd84f051229","3c40bcf6f39dc755c30599a872b73e17a118ccff7cf0a8370e774637cc1af990","f16a91ba7d5eb8499cdb4b6b74f78187d85f6744d7e21d3a134538037c0f4c88","a46038d90afa57a10c269469667a209623fd066d3f084698343feb099fcfeaea","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":"en","page":"theme:schulthess/quality/en","quote":"Whether the machine is taken or not","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.