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.

“Not sure what they did in the last update”

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)

2dbbde43385ba289f281ee7cfec1b3b5b5b77bc7cd69b65eb5efbbce99f3c33e

Signature (Ed25519, base64)

NyiFD/GNYl84OwuIRC57N9x7VD7i1N3xP1uIncXtocC5V49GMcwM277U8TJ758qWk1qNCK3MDuhhduxSXSyIAA==

Merkle root

b9a08f9d6d76dd148110a496219c42cf3205c6f982800d84d5c85d77e9461e02

Merkle path

["2dbbd485ba05179bc2b1dc39a58c92a0ea46b7afdfb9cb856b8047618bd1cb61","b7fbcb30b651825486dff326198532af4ed43cff33d0e94d32313072e69e7b73","f11a140c70466b55958a78f71f1d90fef92414ba2d03855efffa0a2db5375663","5751359e67c908220cc73e88f55c66f9019d97f658e7fe281a523fdb0310bf59","65c2966dc0f96b1a304f1e961656c1e22e6a4302be49fc1312446fdc4d553c66","f3cb8a5b6363c6b663e9b1c07cf62a6c4efd85830390f26c5ea96f47e3feb517","0295372d12dd2711d7b2d5b5610e71186391b4c5013114dfd28808bfee34352e","f4a4c4648d9ac34eb6028ad409b6cc4c0f1a44e6dd4460508755cdafd4bd25e4","9d495473a92b48fe6e7ca31e7bb9024cd2280280e4d0d8f86198bc5976b8331d","e75d6c1f3ac68af2a2cc622a4b29873b25a28537a8cddf2fa27acf51d6f176fc","e0f253c731d9a50fc143ce3dc5698955a6cd944ab369251d35139d245d1f6088","c7178b4eff2fba3e523e57ffd27d883eab0b92aca9ab4febca6b4f95755695c8","17354708d69221dcc11d442a2ae8d1a8fd9ce3422f52e63a29a599e2bc987d3a","7a4792c9dcf9466d19ba61ec3efd4f578e21f2d3035e8fa6a6264d3045083f7e","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":"brand:anton-paar","quote":"Not sure what they did in the last update","rating":4,"review_date":"2025-09-30","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.antonpaar.homebrew","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.