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.

“der eingegebene Text erscheint am Ende nicht in der Leiste”

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 2907673729

Proof data

Record hash (SHA-256)

5c40697d6e2009920101c025bf3693dd3ed6292db65eae8d485965e39982cb8a

Signature (Ed25519, base64)

k6ii1QE4qXNPQBI0RDxhy0WYPY5mV/ztvUbXicd3OrR917VG09JGME2D7lFIr5mVNbDMVthO6148kaQOZk0SDw==

Merkle root

b9a08f9d6d76dd148110a496219c42cf3205c6f982800d84d5c85d77e9461e02

Merkle path

["5c3e6b05ed169a288287d78653f73d745e69e24414bfaa616347bcb36e348e8d","f618e3c1ee0af70c45a4bc112004048171486a221fa3aa250fc666e873d970d8","12dd2b02924ec03e260454975e0bed9544d3ac14fadf740360c8b0ecab8a0cc2","0200df80a0ab1f80c8d47f61fb984ff8c9ba9eeefc36233ca8fc491a24cfb703","cfc1788be89537959c8fd65cac717081df0893751c83b9cd6d0c9eb794b17de1","34da2f5ab08540cac9773a5f345124530856434e04033bac1d721697577ba0c8","5cb86b5e7e56a1000e294b6859173832573588c00f3ff9fd1fa70a1147fd6aa1","65c82bce71f5babc9b689d459ca233b573c55f7e9bf6d1105b5d5a33b2828b78","6aec61d493c89ff767b995b0a3427bebdf5ce7c6b7820e302a53158859c44a94","8f1dbe36a4e9f53e38804d5cae08d4ee7edd5e01070f0946e6ea611eea58cef4","3ffc4d7ca09b39e0b9dadb921b06581d3652d248d7ed39418b832cb86366bd66","40bd9581780e3da9ba474021971a27a2b963126bf33adecf2de39d29e5b5c2dc","bcc0d977b8ab2060a87584efe5d0f5545e840726716d3f02c248db108122259f","6c299608515c69a03540be35865f96ca4932f3e0403f8f39fb0e1c2e2aedffb4","43a562d6822dab12c673c1efa0a3171d1ef69b949f676fb01847e1e5b56274de"]

Anchored

2026-09-22

Public log entry

search.sigstore.dev, log index 2907673729 · entry 108e9186e8c5677a06ea…

Expected log hash

bf9a74000249ba6e66b1e29aae9d8cb95c3400dc118569a80e5c0949f3e8ac62 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":"v1789969984102","kind":"published-quote","locale":"de","page":"theme:vaia/ordering/de","quote":"der eingegebene Text erscheint am Ende nicht in der Leiste","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 (b9a08f9d6d76…), 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.