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.

“When I want to type text, a white screen appears”

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)

657ce929a3f13e038da37cb69d734bd1601a715230178508e771fd4df0fcaaa0

Signature (Ed25519, base64)

EoMeYwB3/I46TkR986Zq1Kw0tUONQjf5JqeA2RH64pz3saqczm1KRxAoYJs9B4iPAOqM8X101UA2s/UtH93+AQ==

Merkle root

eee462924587f8024361bc8d60043805cf5210f8bd2ef7667df06d093552f9e6

Merkle path

["657b1904509909e6024437f76bcf1597f2d9a83f9c58848e686cddf96e9b2e66","ef489848983ae36c3adad57e730cd0ea1dde88ad67f3c92d34f3275c66c6e0f0","d66caa60203bba5a3017b5e0d4db403de51a6457c3e2686562bd80e02b1cd048","6912f092b94d0ee1ca41a710cfc31e8b0bbeb0ccefa864caf4913327d4352e50","32591badb93551064591731228e5d028697a53a56fa1ebc66ab507eaa47cb230","e07928bb1ff07026bdd490d95a6024a2782c36eb92703dc3cbb2964f29ccc7ec","828e83417314b5dd02f208339dfa9eebc9a531614c72c84126e1cba907362cc4","124c2b13989b4abba1795a142059a68f77eee47a6dde93e85f3c8eb4073ad25f","ef380c11050c3590aa904d74734102c044e89845276c687534c314707aa592d1","b37f2ff807fb8148ea7c5a55ee959a0b8d28ace1565b6326ddf364f3374fbda3","5fe4503b3307f13de42c732826bc151cd940707824ee79beda6f9ffa1d08a4b4","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":"When I want to type text, a white screen appears","rating":1,"review_date":"2026-07-25","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.