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.

“3 CHF werden pro Waschvorgang reserviert.”

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 3163461995

Proof data

Record hash (SHA-256)

b656d4ca4631dac6861ed52b2e69ec1e5682f6547416c4e5d78c1b6b9b9c8b5e

Signature (Ed25519, base64)

r0Julxt/P38DFvvjKLIpzLygPgIKQa4vVZMjk5KG1xUdeVC1Li50b/pgtSNw8SS2JQekDq53hhqtnuPTF7IwBw==

Merkle root

f2dea3193623a59d18b4d230cf1484689c024b05d34648a4bedfef78c47360d2

Merkle path

["b654b2b52859b02667e3b936b3c887d7535ad5c524b425f115ac6c8ad90a5056","62f942e757ea6d511cff3bdd3835771e779edafa4a35268964e807ca879256ad","17ea2f1b9e772c69cf0c471e1b563626485ea3a7a95e516adac2ee571e451773","1e0a6be4614eae385ac59e05411add79ae2fdcae999a372c15d5722d21772981","f9af7981c8d0826e4fab1c413d075e0bafef1c0a1e975a736d36440116e1b168","1f8ff322268aaace508a4ec9dcc75aacb4c5bc0383d08d87861b0c7a6f73b9b0","480534829ebc3672980e5b4d30014406495a6100f6e5e4f7ee1adb3ef9014f89","cac890777871e536ee29f1c1f6dbc81f5c994224858eaf3eaf73ef73c4b904bd","82b5673f219a3c2d44de8c317f9b5525e04678f9d45708353a97488026d72ba6","c8872c36ce3e6ba86cf5967ca43d049edfcda1c91ea2ee2fd7d32c95f43c3138","dd4741149e9e3a99d1ab962f3b16a33cdc0eeb28f46f78d7e26e9afd84773d86","f0fc169ae8610b5034c8db3e22369fdfbf72b508df037dd1163f7e2985bcb7df","aa8abd53e4cf01bbb2bde782f5c5ec8ab8972af72f6d45e006b1777c3f44ed11","3cd750b45485739a93e8e5963aebbe2dbf3f2cd6fcfd5ac889ea2792f103cfff","658fda4333b0a975ae51c0ef52c37c157029d897878579fb5ff3ac48198b1bf3"]

Anchored

2026-10-09

Public log entry

search.sigstore.dev, log index 3163461995 · entry 108e9186e8c5677acea0…

Expected log hash

1e385e1035f15f3dbe860bb8f3e4e850b8c2ce2b31edb58c97be626995a4adf2 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":"v1791544610158","kind":"published-quote","locale":"de","page":"brand:schulthess","quote":"3 CHF werden pro Waschvorgang reserviert.","rating":1,"review_date":"2026-09-24","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=ch.schulthess.mobile.android","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 (f2dea3193623…), 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.