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.

“unrechts und böswillig, denn die empfangsbestätigung der Kündigung liegt vor”

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 3029042635

Proof data

Record hash (SHA-256)

d2cd4f497e6ad47f5778195a51ec60c7380ec0bdc67378ebb967a5312d4af78d

Signature (Ed25519, base64)

fuA3dy/1MfEky0XQQbiFN36h8lp3VBTIKL/SW5Hnavdnb2w3fuHrAefWDa52QM81n7fd+KIcdEIktn0YzkUbAw==

Merkle root

c9e6077a1bda893f1455402f424b1d526c8cf2f47d428b611fd8d7fd8b45f80d

Merkle path

["d2ce9c627f8b2f40a1299a5b6698553096f58abb6a56308e70bedb97228f2706","27a81a63451782e869a72678bb13e6843ef384b111b1ff12a738674dccee7e54","78d83610739b59fb1caa4fe6b278761a53a3a5f2d11884fcbefe9f2ea650da98","7a781673b66854efa1f312ecf368c5a367d4f5489ba6401272bbde961dc1e8ef","e740e326d20bffae560f11e6bec46fb13e84f1c1cbffd447001c7aaa7b81145b","ccd3218af15a89d7a79c5c5aef4c7c993af390c0f6a887a6832fb64a8d609394","be21accfa142263826263ddc510821cd62a765ff5670d939c2539c3a6b037ab0","3df26c9f00a7e637e73164b43104ea777c5d4ddf81eba75c48ac1612e2aa5aff","ef53c175ab89b922d4f5622910dfc623b95c7545df714edeb9252d4fd7f729ff","8a9e7e51f3a91072bcac13094c72a9f0b3377414a6344da0f00fcba6e4573e0e","9fc1b1afa60f26f3436d07a2ec53b10462a4f4f9159a3d4f494bc838bfb490c3","35c966d410ebae66403b20039887edc58ff83b04ca2ee73f8bab105e4292b00b","28f09febe910b8ffeefe28f4b3e25d4946f6ec33a76812b567df1654abf1c9b2","595afa49ab9420d8429afffaf39a6f4725518c7a8b9f2c89ac8a7ee0fc958fd0","e91b4f1cf428f19a0932cddea6de9c1c364010417f9e244d933b133a023a7aa3"]

Anchored

2026-10-01

Public log entry

search.sigstore.dev, log index 3029042635 · entry 108e9186e8c5677a4403…

Expected log hash

38d9b7e95b1b3c998a8128983d818774fe7ee047adb6f05ee608495c2d7aa418 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":"v1790741815621","kind":"published-quote","locale":"de","page":"theme:vaia/billing/de","quote":"unrechts und böswillig, denn die empfangsbestätigung der Kündigung liegt vor","rating":1,"review_date":"2026-02-26","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 (c9e6077a1bda…), 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.