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 etwas gedauert”
Google Play · 5/5 · 2026-07-28

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 2882354328

Proof data

Record hash (SHA-256): 931e55da3c31531beb0d66cc2898ddec09ef8960134308231e73e8a1271d15f3
Signature (Ed25519, base64): hAn5LsML9SNI7ZQgOjf4vWvkTSggr/BO0MF2+V3gUzUJb/vgYELgBNBBaRCJnefPn9NKrTv0pANsjXx8OT+xBw==
Merkle root: a893faa173c6b378c8d050262e841ab57fdd89b71985eabc0906c40abd5b6a6c
Merkle path: ["9320052c8cd772c63e61de15f5d41580964211e7aa5dc71cfb2acc246e4cd472","229ad2f5f0032ae5d54c0f8130ba80ef8d596302ddd3c2b2f40568cc33059537","b15042abc983ef8bb5bc0662e9e8c052a25e99b433fbf010ab2abd9c4e3cfd5d","fbee066d8b75d4f432eba971c4947339a5f51a079b40adfe1908b196bee874ec","15d4c0d89efcb8a60d4ff3bf51da09698cbd37f44489116b74c29056856c8d10","33d82903e7c4cbd095f94356dbda2eca88687777f3a3ab1269471c0786123c0e","1377e70883222d5acbf67973e7b186f2e9e9ad4e835432d5408506b0a518f047","066f1ba5afce83d098beceb21b8f0922dcafaa2f21d76329b6ec339dad118feb","edc6581740e55535939297cd485a10fa84825522ffc140021ccc86175060ac18","9420914a8a71d57092d6f9bd1d3ac9272b84fd1c4a85875a15d6cfef7f2b0fcc","4792b68a1efd37c2efe0d2ffc63092078c0aad9738a91c23701d505683d089a3","650569b6d36872ec607d21e90b70105894b45e1eba915a8d7588d829e1115e8c","d116928dd89f0a9ea13414b0fe2d577ce3dd16007ed8754e9f46163a67e25fa0","c2523440f419decfbfbb1761ac468558734f6da135e5a329b4c6dba0ae899966","5153df72155ae00831ba1e4416296382c39280ea82c989972042c066f445006a"]
Anchored: 2026-09-18
Public log entry: search.sigstore.dev, log index 2882354328 · entry 108e9186e8c5677a08a7…
Expected log hash: 5510a497abfe2e680a39c301b0d905c2a575bae0a1f389fbdd7b86babf05240f 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":"v1789619628558","kind":"published-quote","locale":"de","page":"theme:taxfix/delivery/de","quote":"hat etwas gedauert","rating":5,"review_date":"2026-07-28","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=de.taxfix","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 (a893faa173c6…), 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.