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.

“Very poor customer service.”

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 3178600936

Proof data

Record hash (SHA-256)

79715dbbff6705244847b8956964b131c8f8f834a45fb6fb0237c4e4df0c43cc

Signature (Ed25519, base64)

HtQrEzw8qv+YuUqZJNvZstJkcBVAgh6D5HFMYRyguraH++urRr+yXVFvgvXU2/b5Z3hQRcZj1+0DT0NskyPGAg==

Merkle root

eee462924587f8024361bc8d60043805cf5210f8bd2ef7667df06d093552f9e6

Merkle path

["797522b34578bb9b287a8f5cdba830f4ca8849adc98e77db641af608d4e24911","72df4e9f8661e9e383823e2fc3f9db8933abc385efee5192a694024eef65fb44","060047bb59efa50f6cfb0325bdbc92b8ec18f5b010a74f775a960583897f8b8e","54b1b82e0eeb68e7956c282ba5db336661d3f1a03c33a2357e581086824359c2","aad49fb4b2d2e6af2337edabcf15e49e68315c0d7564068c167ebc23bbd57f9a","6e04b2b747704c0c512f81db22b8a75a32969795c7271257658587380dbbe1fb","ee5c0f066c83bb2600489b935684cc36459f5bbd3c45111725d781a29b7e9f72","ceecf624bb009b417ea5e4462fab355111c6aa90298f5e3ce9170c160cee2d9c","681a97f45f6b8c6307cdc02be27b00534fe0100ebaaab90f8ba1080c1d3964ac","93ce340dd2d34fcd63a81382c8cb0b49afce0cad8511e3df3630cadbc91643a4","766f46b5f3d52aff6fbda02ee48385a24cd8332cf408c1bc11038124cdb3fc04","5b1894dfcb750cb74de963040bda8c5d7aae8b006db7bf1f2400cd4c8a13bad1","2a2a0e0a04556444a1f3e56af70f8f7d735501b2d557278ab2ea5948d291f4ab","a445a39a48770a8fbc5d87a405ed660d401fa810eac6fbd1d284a96f8c7d5503","452f4fcbca19997a15e6a6869c50e026ff02cb90a6ef21da106ee0457e55941a"]

Anchored

2026-10-10

Public log entry

search.sigstore.dev, log index 3178600936 · entry 108e9186e8c5677a6a91…

Expected log hash

f3dccf508afcb5e89d56dabc8c5aead85de215b1b896d057d463ea1c1bdb13a3 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":"v1791606586319","kind":"published-quote","locale":"en","page":"brand:vaia","quote":"Very poor customer service.","rating":1,"review_date":"2026-08-31","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.studysmarter","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 (eee462924587…), 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.