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 mir schon einiges an Rückerstattung eingebracht.”

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 3162293789

Proof data

Record hash (SHA-256)

4ad1d24b421a8025cdc0cab25582b2f1aa85790cd120a39e5d92bc972ae66e11

Signature (Ed25519, base64)

NQfs1G0ROqDJQ0oxl0HVzyd3SFcLh82eh6zMD7WePGK8JuWGCsmHgUjv6pinjIfUU2r3dGibOBN3wCb/c6hWCg==

Merkle root

ab8d4de5853e13d360962f03dfb915842a42e1c5601cdaac4f2b37ad0ba96b78

Merkle path

["4ad2281966abc100a0418df5423f6e4072da164c8801fe8abd087e689d964b9b","28f5483ae1e669e0dddff63d1e86b8fe67b95ab69ef7ab359609c6155682a000","0edc072b57f1b8db82d00d1d3f5f5528b83fc18bf51c21f66306fb34552a0174","10e8b4c1d95104c88de6cd470e7d0e54eaf2a7fb9a593f49e557eaa42fc36976","a59eb700fa7bd21e49c068bbe808d656afeff591d881f0f8ea2f51a23d3a93bf","5a69a5f28939902b7486736c585315dd6dd9f5c70887e26861401132639369b9","2087738a203478ce0fc56a1a29e980d0caf0052e942eca25f63b5a785966dd57","b27a9e21fa3ea0df96df36e318ee44e499f591ebfb9ef56b264124b83388f2e3","2bd3a389f875e7b61c7d518bc6e59b781348696453df77fd861da6495b6dbc07","7a524a39d62837cefe7667141dfd10cfb302b3ff1a2227d420424224c9f5067b","19ba7344fe144be9866d0e6d7bd1e3a81275fa022940adf56e6334d48a00aae5","c211904b9171b5c272f5c1438c153a9b8b9a82a69b1c78717cb68f70f412c0fa","145b8339a2152137a5c533b9fee0b743027ca75044265351c444699ba891d42f","6b7938d0463f2b633e195d7021170023360849e40ff5e64ffe0633d28e084f81","90ac6c76618b09f3702b50a6410c80828bbcb4ead0d9d85dda294a654717f483"]

Anchored

2026-10-09

Public log entry

search.sigstore.dev, log index 3162293789 · entry 108e9186e8c5677af0ef…

Expected log hash

49c1b9c7cf9c0180248092c94f6cb48d5e59f6c65f471decaa61f120e90874ce 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":"v1791539611981","kind":"published-quote","locale":"de","page":"theme:taxfix/returns/de","quote":"Hat mir schon einiges an Rückerstattung eingebracht.","rating":5,"review_date":"2025-04-16","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=de.taxfix","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 (ab8d4de5853e…), 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.