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.

“Die Aufforderungen zum Ausfüllen der Steuererklärung waren für mich verständlich”

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 2948162176

Proof data

Record hash (SHA-256)

864f931a62ecb61875bcd79878d5201e966ec7a082e551fdc55bc1c1584a0bd1

Signature (Ed25519, base64)

sLQ+7ZYOJxQv2qCsxQTNxk7QIKtGHvEa/Oi0wi3pVWKYiUgn0XvlQsLk6ZYGvwfGAiPRyKeHOl6W6/ot93TZDw==

Merkle root

5397210619679ac63434abd334c13f5aaccbd1dd184ad9d8cac5ebeceaa346bd

Merkle path

["864d1364e4d632089a834e92f887137553fe859ff60201a491b79e09aded5e4c","db635cba73b359e9c9b94df6acb0beae3a0a6154b0bb833e3b6e33d641a67679","204618328d8d1f289ad19cbc81735df1538a2644662f785251419997956766a0","31dc3ad5e7de7b7b512d5ebf97408bdf280f5926c9a3767220669168de30fc15","1e74bd802fd470a151af089b1531bec804f27b045d61c89ce2107bed5a933ff8","9be874ed921a639398ce469d07ac9bec6e130c3883174bc0d3020d24a3a495f9","85d5d21720b7e1494b60524af19c5f3629bd62b19e1fdd0b28f65709536539c3","30d61ebd176898c0bc747f9d3499167f4dbad4d023495b0915b256d2d9bbc96e","82680b6c00ab5e47e19e23e17578a06ce371bf49851ee2261ef67c4dce059dc1","bdf9ff9e7d8eef00add436b54cc44febe5ce7f184a1ebf3f8b9d8771176bfc9c","606ddb4be620edd39037d7b2f4b86373b8f0989173b3d7f84a427d07c39ebf71","39081e647d66856f4efcb9e90f0cfe2c81c995dfd64a8921978cee855362e1e3","48bc5ea5434a32841beac8d9496d2692095edbb7104396574890154d981868a9","f5d1cbec3469173c409764ba850b613628c88020363ace8f472e6f611d605e0c","eb97a4ce74ce5f5fa16f1703481b35cd770316cd3d34167e9b76f4403804f896"]

Anchored

2026-09-25

Public log entry

search.sigstore.dev, log index 2948162176 · entry 108e9186e8c5677a61d4…

Expected log hash

5ff8f25b7934b5d72d363d6805344624efba4d637f2c851f11783b259b9d81be 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":"v1790226990092","kind":"published-quote","locale":"de","page":"theme:zasta/communication/de","quote":"Die Aufforderungen zum Ausfüllen der Steuererklärung waren für mich verständlich","rating":5,"review_date":"2026-09-03","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=de.zasta.app","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 (539721061967…), 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.