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.

“Wenn ich texte eintippen möchte, erscheint ein weißer Bildschirm”

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)

49593d91504cf378301ae4857d4d697287c9dce0f728fc93eb83ed0db612b198

Signature (Ed25519, base64)

nuEgGGyfpZnkKBVZUUoMJjPLOjrqk483cbqVHkXNm9vkZ3KsyGEOqWnpzeuiDO52urC4BDf7lZDNvkKQok3fDQ==

Merkle root

eee462924587f8024361bc8d60043805cf5210f8bd2ef7667df06d093552f9e6

Merkle path

["495bb6e7f2a6b4c5f8a8e90c6161de117ca8da6839e3ef337f56b58bd02f2cc4","13c87493fb1c6e074dd4418783a90b918698d146a3d65f354eb0e7f448e93d41","9afa622ff04c715135c3aa9759beac69e3e7836d42ca5a8f8a6685db302d1b03","484b839d91f0db1568811a6c92db708b6b2a1831cb278c806b0fa6e623f80aae","3515aa54b7aca790f5f36cb0625967bc593113e49606a66bc9f842dbb435e1e2","7bdc4b269fc06abfca187b76507944e6093ea9888b03537d5862434a48eaf06e","58b9a14aabbd70eb5e122d139fae24d7be84e47fd4ef3e492847f44cc51c908a","ad0746c16743944e537168bfda042bc03fe17547dcc0c5ebd0901c727459226e","909506970716484655152e2a5994562d38cfc1989eb5d5391e546292a4c3f8ec","adba121d9b6d2ee979b4a40bf796ce5d5b99e5edaed2b52d59b193fb2442a0d1","ff83f8d8a8477f71deed2d6b12135eab9bf1d2cd53770c44a491f2a5b01187a9","4379fefad16ae8ff2ba5706e6ae4b477d1b2ce3cfd6e873ab8243a37cd5eee04","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":"de","page":"brand:vaia","quote":"Wenn ich texte eintippen möchte, erscheint ein weißer Bildschirm","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.