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.

“die App ist sehr übersichtlich”

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 3138947147

Proof data

Record hash (SHA-256)

b327c996d2d88bc2338626afb4de2a99cc9f653d047bc9b256a05dad9ed99f36

Signature (Ed25519, base64)

A1SuvRb36dvdZ5Lzbx80r8Y4AmiYlfB+ppIe275yClkZxHSEEKYE8/f1meBP7unOz+6HYtrZIeS7Mzf5D8k6DQ==

Merkle root

1b26d1b85473caad1868633ec4c931eb970e81199eea87926818f3f1753af37b

Merkle path

["b326702d91228cef817140631b19af92d94fc587233d0b66f797f60828deb248","1c0ceb50d787380b17dc45700cb25aa40465e14dd2426f8ad8ef3a416d9a2d10","2921a73a1cac66cfbdc3ed40085e99fd883f6b8068b3d7683601d9c2774d9900","d707a479b3b22da618d496afd5a102f2a2668b753c9c92ad60604f9f3aa2f9be","a51ee42cabb5da2c76bed7298ed17dad199a444573dbc5cfb3bd249d53625f31","c0ff3334f5e8015707736b98bed1bb4f5a8bcf2d7ddf03710f89a7f68e86fca2","5e00c14106f58a5e7d9968b9f15ab1398906fe5c5c456ad958812960bfa73235","0b124cdc354cf4c9748436c0785bac50da494783830bd88815e9a5b1f2a2c2fa","ba8608aeed803d1df056e73eeaf396519c591927b5fd099c42899de593be1e18","8f2390317e797770956bd24ce39107391a913c137ee2e095f2fc0f13d7a96445","1fe8a9ea53f8a8cbc48f25d9b08f8cb3122cb6b812c8e0035d39eb7cc3d49e24","0928ecf88354927cf77248647655f6a8bb07dea2f6f4911e0f34fbbcb0f1ef7a","c0dee208cfc82bb58ef8bfbdce70ae59669cc0fafa6229438e70014c20ddc06e","f13bd3931ffab245c82268d5388ec4e7a23a41a86394a369b97f89216cceb3ad","06054c91b82ccf7b99bb6b4fcb7c60afa97f93295e6829b75e5bf1efe9493e63"]

Anchored

2026-10-08

Public log entry

search.sigstore.dev, log index 3138947147 · entry 108e9186e8c5677a2712…

Expected log hash

8f66b765b7efcb11dcdcf57b81c46ed3317a5895f5b870638e23b76f1efbb2d5 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":"v1791425549743","kind":"published-quote","locale":"de","page":"brand:concordia","quote":"die App ist sehr übersichtlich","rating":5,"review_date":"2025-04-22","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 (1b26d1b85473…), 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.