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.

“wurde trotzdem die Jahresgebühr abgebucht”

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 2525257308

Proof data

Record hash (SHA-256)

ff72dcf356cc73851ead1438d48162ad5e1fa5a3bca208897f45458f0f0a87f5

Signature (Ed25519, base64)

Lv8ee5VbYaYuY4w0x6iLOqJhsIodu4BUapUaVOZzx66ES4q2rNG/3GUttrhAxSqLNcWzpqpWLtAdjObe9TTNCg==

Merkle root

bdf558524b6fc08556728f259e0f09161d4626349b700d7f30fb50b05a626ea1

Merkle path

["ff6d61b922fdf5aff8927da7ed8c5f82039c0f5c59cbda89c6e4a5c9ad0c7344","34982985ffddbf1b01894f22df3e8c22f3d003f252c43d7dc9fe8713ac6fb012","ba16fb06672542f0a8abb71c8412276fbaf85620d1f62d037ba559db3b8ee6cb","10483d936b593e13654c2fa44d9fb2d6305993c67c77e0e7c413cb93d2c6c9d8","39f6dc91afb9107a18edf3ec45635fc34ada696cbfe3ca045bba2f005877f000","bf0da721983eb304988b4be8670c869181252d2d79a54478a469ac6b496f7959","416bb643431bb4bf233e95d346741e3ab630ac5ba6d6101c417d3efdc8773720","aca4eae4b433e8544dcf6e6a034cd14e0db7c764caa6294fa8dfc32c08b5885c","91e7434404e58000e6f1e805244d8ca2f03bfa8bbb1f02665e0001f2b103654c","12a1128cb0949bf83c45f164d1e342972de0ccef5d201d067013fb4fb658d946","3d0742974b3f0c289e1fb2ae2167e507c87fd383a87d770f58fd281587e12662"]

Anchored

2026-08-20

Public log entry

search.sigstore.dev, log index 2525257308 · entry 108e9186e8c5677ae552…

Expected log hash

c7cb1a1a9418331323cc64d3f101e644ce5e79412d6e55a22a9342e33025b7dc 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":"v1787195935480","kind":"published-quote","locale":"de","page":"theme:xodo/returns/de","quote":"wurde trotzdem die Jahresgebühr abgebucht","rating":1,"review_date":"2025-07-25","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.xodo.pdf.reader","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 (bdf558524b6f…), 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.