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.

“Voice recognition would be great so you don't always have to type everything.”
Google Play · 4/5 · 2026-02-07

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 2907673729

Proof data

Record hash (SHA-256): ec9662c2c6440f2c473c622fe763d125b9b9794a772cb3bc3010cf073cf1158a
Signature (Ed25519, base64): FquBVKFGWIjdtWObxKQseJ30yvOshK8JFDubyG/oLMTsiLVZOsHZ7UBCLRcwjbeM0dpZYPIfbLXsuBkYWr4fBQ==
Merkle root: b9a08f9d6d76dd148110a496219c42cf3205c6f982800d84d5c85d77e9461e02
Merkle path: ["ec9639e5e00b77f80a12aaf1d2349e1f96f5df2dc877ae88f843ca85994a5589","57a2e18b00077bba902514091e0e782a6695a6dee28356973da2923c987494ed","4aaea2541e9369c488e83a9c84de0f92a6d184f695fd563279860ca9031ecc24","1a612cc6a7f438da691f7b0e0b46d6e8b47b80db8f2267a1daa18715c17ffbbf","b5d9bcfc78c194e5dcbf518623dd4b690cbd995035f01086c62043e0ca7213e2","0fe85e5771553f4e610dcea5b96ae4e9ec4308b5b7416ab29ae3346280742450","dfcbbd23a51dffe56ce00f9fb4833eee015788c2a08b4c3365f332b72a441565","33bc5081369cc67dbc3b4579fe9df704a123528bde8c3c53ef5a5be9bf73f7b4","19775b628e05585f063d9c9ad5ce06eed279ad0afa767a698e3c2c7cef3321f1","f42bd15dff167c3a154991ba076db073f27d08122e315bab679695fd94aed699","1ce8185a67fc0f0f175627564ef800e7835dfec27d00240c56e1eaf3b636cfe9","e89b125d6d75a826a464fa50668f6e82a6668dbc929bfd3fce7c23cc14adfdbc","c975f4076f62a76765a4bc502e988829db65110a1650004b828d2dfb5f90a9da","f92a7fda99af63eb008476cac47b147880eec6868f847624f8b438c917195408","4543e8b9ac7bd077d9526acfdae449f0a0d5517cbb42414f50ef930ecdb9470b"]
Anchored: 2026-09-22
Public log entry: search.sigstore.dev, log index 2907673729 · entry 108e9186e8c5677a06ea…
Expected log hash: bf9a74000249ba6e66b1e29aae9d8cb95c3400dc118569a80e5c0949f3e8ac62 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":"v1789969984102","kind":"published-quote","locale":"en","page":"theme:vaia/communication/en","quote":"Voice recognition would be great so you don't always have to type everything.","rating":4,"review_date":"2026-02-07","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.studysmarter","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 (b9a08f9d6d76…), 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.