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.

“Es gibt keine Option, sie so zu belassen, wie sie sind.”

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)

3f5855e39a349762a33f36433b97053785821f85565d19dbf0cee79f435f1a2d

Signature (Ed25519, base64)

qKlcl+hQOp8a6AAfHpDhjnMAqvq2PWh44KCFUo/SeaAy6CLCD+B9m3P3GLssWw4EdydEooVjpj4BZM8QR3AjCQ==

Merkle root

eee462924587f8024361bc8d60043805cf5210f8bd2ef7667df06d093552f9e6

Merkle path

["3f54d92ea6df8161cb69947a7f793220bc4c894f26c1caf3ed85f87ead632fae","ce96305d4bdfe50482a56f195458192098a83f43648ccd5408ad6e587c94c384","b1c3ab94518007eeca9b583273f4dfec0120f6e722c00015fd57063407b53f33","ba459c6548cd3ef1ed27e7a6a51c97352bb8e5cbaaaa7abe5f463e5b7c9086a3","aa1b16eb13752a5a142d82d514968a8e70a674930d1f10e3fa53850801d12e1b","aba3faaac6e12958f50f8bdd6ee8e0ae7b855ba0f3df8d78753e0cc36eb973f1","d8276743d5861b8721acd054d49833fd6ee96cd8f258f15afeebba66694f73bb","c320df35909d39bdee4bd943a94e165640e026f32138319515d8d55f07c83af0","c3841b5d02f11cc240e314ee8d45b4be9411fb56af50fda48ab4bbc08a36bca3","8fda3be3b6bc59b96d786a8ab859e19c57d34b4a4d6e10717c5558be5a72653e","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":"Es gibt keine Option, sie so zu belassen, wie sie sind.","rating":2,"review_date":"2025-10-06","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.