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.

“Steuererklärung endlich nicht mehr so schrecklich”

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 3139760477

Proof data

Record hash (SHA-256)

fd9afd1bf52f25c5946c9040f700f99a30bb33e8a83252bec225af33783dfb6f

Signature (Ed25519, base64)

+Zj5qHprW8BchFD/lJz72sZC18T+xMFWOaoHGkS/qPHtySv2qAZKGGrx5NAMZS0q+UsFxVko19knedlRfmXjCQ==

Merkle root

49133e6803d24035baa1544a5c730db93dbaf832df48f680ca855944337404a2

Merkle path

["fd9cd1890d169ae7ce9ac388f9349e5cefe32d7a93e5df83ca5f4b9431e17e50","a65291908b9f147856269ee41a09a56d02d4376e689130551a0ae53ae5d501c0","547cbe4eeb250647ddecdc3d6f584ec2a422980929fdbbc21bbbfb1d45e9f497","b6b87564fbb200978ecbf23c9ad54bb491ea8775a7be21820477df9a12cad655","5d66bbf5a98aa8404124bb2fd01f844d3b5347afa11a2289796dc59a37605e29","cf7381c9e4d9467cc450091976214f5550157eea1784bc489941f570c1ef6f61","3ff4b1a29a1fac589706da6306dde53f89ed89721ee86d300e052acae2f04bfd","f6d97fd26b9893ce7e2a7975de48998f4fdb54968aa28ec6c1580643329fd51a","c32bc28703335412aa952c114d4d9db3d0a8e47815980448b11642be6273c240","74db413daac5cb92471e1d3ffd5c0e5306fc09c9244a0e5e8911fdfa1213d4bc","1fef2eea1ba7233240a645d2d99dcdcc4e3841bf30f06929c9f12592e46a0c14"]

Anchored

2026-10-08

Public log entry

search.sigstore.dev, log index 3139760477 · entry 108e9186e8c5677ac88a…

Expected log hash

d54b6e5e20903e9be29e6a5973227ee9b3dbe61bdc0fa6481a5788472cd5976c 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":"v1791428432986","kind":"published-quote","locale":"de","page":"brand:lohnsteuer-kompakt","quote":"Steuererklärung endlich nicht mehr so schrecklich","rating":5,"review_date":"2026-07-04","source":"Apple App Store","source_url":"https://apps.apple.com/de/app/id1586330607?see-all=reviews","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 (49133e6803d2…), 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.