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.

“hat die App echt sehr viel geholfen”
Google Play · 5/5 · 2026-09-17

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 3162767972

Proof data

Record hash (SHA-256): 606165ea7d2ecda3e92d4eff367526b253a564d6db42a901bb0d4451ca44895e
Signature (Ed25519, base64): YAhiRkdT53fK7LLPTgZZSqPkW0RCYVzL96+nvD4jPxhHpHdmVPl0iNoWrotC3kZP58tephj8gWA9PKE+qjenDA==
Merkle root: ea9653d48be6468e8b38c47d968f49528ccd17e229f6df41b5fdcfc232720ce1
Merkle path: ["606009007c21d95ce706b4eefcee95ac6e9c284a04c8965c0ab75eaa54002935","3f511b0c0cf8181aaba6f4d5ed66e201329fb7a648c1addc777006f218a549b9","01bfff9c8eb4c65d09d7ca6ba5046cc8e1a81ccb4fd0545cb78eb6dc71c371e6","2b79c6f643dfddda0e20eda743a825d4bcc42fa6b488a29a61a68576a571b156","27455cb4769c7766c5cbfd57f77fcab38ea41cc0884c70507a7cdf1b067c8028","99b1744fb60a320191bfe198689079c5bf52034c688a361745c06a36097a8e75","c24b714d0d22d2e091869cfd60131556798ada468286637ee2de6058d34fa49a","dface78cd0545c3429246084727f7bc8b088a63a7b68e86689c61e4160147d49","3b505fd1a860ca0b3f5c1502fcf9951dd8698dca12196af4d4349e5a2de268da","75f21e18f8ab936879b05b71c7acc9e1dff5a29300d833fddbd6583743973a95","2fbd76dc63aa2d3fab59b0799540598864c2fa1653a651616d60fefb8ad60775","e239ea9476d670817ebdd91ba0132a03db9eb6b27caad07307f06d5944ba7eb5","4c276f582ce22de67665688bc9cd00863f14a3f737e6aa475bd1ea4a72abba1a","ce40f5d4a6c2a1f06b7e5ce375094f8c75556b02f37cd3d94ca98fa0a38a1e5e","142248530d485121153c09b780e08c6af592fdb4c333042d3cdd9e4160c6db55"]
Anchored: 2026-10-09
Public log entry: search.sigstore.dev, log index 3162767972 · entry 108e9186e8c5677a40b3…
Expected log hash: ea8f60b663262eef5ec0ce5a9fbc0ace913092ea47c37bdc70ac392578ea0c35 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":"v1791541525227","kind":"published-quote","locale":"de","page":"theme:zasta/quality/de","quote":"hat die App echt sehr viel geholfen","rating":5,"review_date":"2026-09-17","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=de.zasta.app","v":1}

Verify in the public log

Open the Rekor entry (pre-filled with this proof's log index).
In the entry, compare spec.data.hash.value with the "Expected log hash" above: it is the SHA-256 of the Merkle root string (ea9653d48be6…), which ties this proof's root to the log entry.
Decode spec.signature.publicKey.content from base64: it must equal Citatio's published key at /.well-known/citatio-signing.json.
The entry's integratedTime is the independent timestamp: the root, and with it this quote, existed no later than that moment.
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.