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.

“Rechnungen können direkt eingescannt und geprüft werden”

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 2893887498

Proof data

Record hash (SHA-256)

a9e4ff47fbe9a2ce201b98f3516aa6487ad38480b1e13a0e4e89a69da8dc3ebc

Signature (Ed25519, base64)

rQe7//wK7dy2nz6Moy5TVLOFGw+hjDM01tRlqFbD7EsRkZktXgOP4KtN2dC8m0tQFFQoZNY+gyQW0qUvl6O4BA==

Merkle root

2f068f3de56bebe7a575ba4a979c9244445d2350140e36238e088fa40fbfdd88

Merkle path

["a9edfbf882c73879b9394dcebf23d6418a8739d13ee5f69655e65169e2907b72","a313b6175404a4dcab18381b61312e0dcce2fe14465f79dd01eb52ebe49cc69b","24d84b01cb66c742f0c6053ec196b509b620e41ea5394571ed4e2ead8ac7c3c2","a35fc52ef221c3975af384d1af94a2630cc84ca282bd37c86996f71594648652","a624b8441ea4666f136e7957ce71b795d2eea87bd660e5f27b8c9c84928a53a2","106477cb093cb58f85ef132172d52bc621784b422c776e669cbd13fd56cf4052","dc88bd3aebf5d91e5d57b5e5ed9ff02845ed9e8133a4585d78318274b7509d8f","8cd433f64000d3fced004ff67085304b6702b1f3cb795fbd0b4cbd84bb80f4c4","377166f106bfae613f69484308440021d4196f4cc84f52399524f997f970a44b","891d03bfc422e96b6b09d89cbe0a55169130b1b6cff4e94b871182733cf7dab9","4602a3c644a17f18863ea4c2e2ebcfe21065ff5cb7b6130686101d6c97aa7979","bcaffb66f7637f1faea00b39e1b086b5c8748b956d5fec046d9c8718408ebc96","27978d996981aec54e7305bc9bddff422c8ed02487f8eaef12f84d0b2ba90b9f","537f00dd60bfbd8c049786f7eae4da8a735af5b60dacd3bc1b6054b8ac3175e3","58a3dfc9ad8696e92f5fc9960e9c6bc4cc04e270091b574a948593298b33d1f5"]

Anchored

2026-09-20

Public log entry

search.sigstore.dev, log index 2893887498 · entry 108e9186e8c5677af79f…

Expected log hash

90099e0300c6e23b62e79318296ebab91bff130379d248ada57f044f77e72ccd 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":"v1789796056710","kind":"published-quote","locale":"de","page":"theme:concordia/ordering/de","quote":"Rechnungen können direkt eingescannt und geprüft werden","rating":5,"review_date":"2025-03-29","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=ch.concordia.myconcordia","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 (2f068f3de56b…), 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.