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.

“Funktioniert wunderbar”

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 3668590798

Proof data

Record hash (SHA-256)

7cbd499b4cf10ecbf420faa5af608deb3b41e59f829cc5d9e0934718949342c6

Signature (Ed25519, base64)

ki5Unj/uvlHfPLNo/V2tJq4ar8GZr8rz328XK/f8pZF3OXaqtYPc1T8k65mPzaZcepsOpn9kCZtbMUxCsWvMDg==

Merkle root

2d5c5745bb08542103114711fd42d520689060248b05b87be89b8ac779cb9fa3

Merkle path

["7cb7bd37e0fcb17010f5bdad66175e09da685ec84e89acdf549480cb9121bd00","a3654bc1e79566e6940fe74cadea6c21885ed7893f34bf6298b0b5fc927228fc","6e5412f359f151f58bfcfdcf12a9ebac976bcab7d0d597b3140cc6a1095f5943","fe62431333ea7799e1073a946b7c937dccd8b5c731ce0857a9aabf0572e08176","1de4da6a0ebda9db84082eb824c71c1b22f63b1fb1004ba73e2854275c7a160d","2633966f8fa1ffbf4d03784441cad25078c10a588c6f7cef03f1fef05640301d","05ebbfc6be53cba352ec718321b8715a3c85b51f789acbe9fd602a8976c525f7","eff0344ce692761cd57c933ae0fa76374ea873a78822e287bd23b97e124f3a4f","6146308d9105bed93bc8befae794e414aaadeffd408786b72997a966303e0f9f","61fabe353024151fcf3fdda3d240d33569737d50206d7d0c9d47aaaa21e9825d","49fc021fbbc0254b588c91ba4cd18fc287cc627b3aa08350e9607ddb798e099a","6f02794a66f48cd51b9809ebcf9fabedfd04b4524a0dd771ded6289fbb5166a2","6559cfb6e02d82e98b805956e4adca3f29c70eccaa9b705ec81b278c9da83d06"]

Anchored

2026-11-03

Public log entry

search.sigstore.dev, log index 3668590798 · entry 108e9186e8c5677a31bd…

Expected log hash

c5f232b23a7a0d0b1f2817c4d619127f695b0afb4a7021ccbe7d935023a45c7b 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":"v1793706397400","kind":"published-quote","locale":"de","page":"brand:anton-paar","quote":"Funktioniert wunderbar","rating":5,"review_date":"2025-01-26","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 (2d5c5745bb08…), 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.