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.

“Spesenbelege ganz easy via App scannen, hochladen & verbuchen”

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 2542443729

Proof data

Record hash (SHA-256)

f753c2373739f155e0ccbf89ceb250b78cb4d2b0e85fb64e243a9c0378dc395a

Signature (Ed25519, base64)

ulk4i3hOOIroHd9RtXEAd0R4NbLA15iy+NEgqhlM8QU6uek1pv4c1YufJKNs6nQH4gKM07kpA8hkZQk8OqPFBw==

Merkle root

4354cafe0e2ee66c200238a4bfe005f997e761de26d9e528ed6c12dfe1b33129

Merkle path

["f756e07628d1a759aa628caacc216a35bcf16a4d33fafd2b99f2f076302423de","10bbcbdb978fe587130225a9e07f9017defb747221aca65ffe76f7f56b90378f","89979ff7e8cb8d180566bd3501f324f56653164289415e448fe3d3a1909773bf","d7704b40a13547f8a50f7dc83c6ca7a03454574336d3673a7156008db632250e","ca23c5106983566f1032e0287515695c60e60c733dc276500774512dd8e51e0e","a2a2778411e758f2cbe8beddb095a650ad551f3ec3da7bfab24d9f55be4743e5","1efb680cc46b418c2871a7ed69d8aa0e4d8bc48118edcf2dcadb4513287b7304","01f0adb286e59b6af7ff41ab2de628b77f29af7ddc066139f6be25eacdf73392","3e888ab15dfbcb52699efff751fdedd84d378d73edea80252c7a0e6877547009","16537870973e0282ef1a3094f57bce0686d361496a844553baa6d3433042abc9","3c8e98bc315bda21decda991d8aa3a524750975bac14c2e5463c889e2f3c9437","4f746f72cfae819ad9f244ee90ed9273f8ea83684e51913618a036c86eaabec0"]

Anchored

2026-08-21

Public log entry

search.sigstore.dev, log index 2542443729 · entry 108e9186e8c5677aface…

Expected log hash

1f12c9d846c7a9fd8aeda84057eb4d8f639bf78886a62c6290a2a60cd48e0812 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":"v1787280389476","kind":"published-quote","locale":"de","page":"brand:klara","quote":"Spesenbelege ganz easy via App scannen, hochladen & verbuchen","rating":5,"review_date":"2025-11-28","source":"Apple App Store","source_url":"https://apps.apple.com/ch/app/id1413146675?see-all=reviews","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 (4354cafe0e2e…), 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.