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.

“hardly causes any trouble”
Google Play · 5/5 · 2026-09-09

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 3220996539

Proof data

Record hash (SHA-256): bb0b008fd2e752dddf5e991fda91a1b66bbde1930f8b3839c1a11263b7ddfbaf
Signature (Ed25519, base64): S0OND/SG9jyRZWAkQrL/P3uG0cUmvz05bK4zpNcTgMD7kvWh8Cm9l+aZNSluRpAe7d7yAAIjxK0kMR7qCaGeCA==
Merkle root: 1b0b408c7cf60721bf3cca50f4b7f268b0858a42fba11906e486c6694252cb22
Merkle path: ["bb135b6966ac3b03b54bc0b0095cb8074535ad351d26181453575b7499035c90","05f9d4069ffc60785ef8e4bdcf57292e2c7b97e609c8d26a83d4013d6a64a6f7","4266c34d86cbe5d8f7e20d793afe955a0877e568c746496221e503bcd0296aca","7510eb478832fdd7a257d30bbd70b50b46837ac67260b7669921795acba2417f","7307dc882744a429b88a528ef7008f5ce99319acc10da1474d4d88191ef54cc9","1fb1f9d182a0c47840439fa5e5e1c0c24c7237aa36ff0070b713380128979c19","97c8f61d20a57a0942a6f0716d800ddd0cae32fccf308a91346872c254222fab","779c2d9acd3088a45d56892b0dd2972bf606228291fb94f15270980012247ce2","f09672c01f0675927f726f49e27afcbac32293f6cae5686016f8446354381ddd","03e30387f6a5d282c9205c4991808bad5180ae045f08efad80d97e3f1b5c069b","3d505d096faced875cecdf2770786002f2a5e0104f2a9b1905205b5b6ca54329","d2a2deda0b9d842c4423d4164476cf3f255f82413e98c9bd6d301a519d39b75d","32ff62472744fbf96a4726a181a9ca59196fbb1345337e1df0a5f5490dc90ec1","654adc499d4a340b0d75e59c1c07ad8eb45766bdd4ce20d77273c41cad049ce5"]
Anchored: 2026-10-12
Public log entry: search.sigstore.dev, log index 3220996539 · entry 108e9186e8c5677add5d…
Expected log hash: 00694de1434e648cba57bf07fb439ed90ba501083441667555bcf619bf5edce8 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":"v1791779426071","kind":"published-quote","locale":"en","page":"brand:concordia","quote":"hardly causes any trouble","rating":5,"review_date":"2026-09-09","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=ch.concordia.myconcordia","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 (1b0b408c7cf6…), 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.