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.

“Am Ende habe ich 4€ zurück erstattet bekommen”

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)

47a94092900d5059687c1d42bcfe67b361aabb6ce674f34d93f98658c2218c2c

Signature (Ed25519, base64)

eV+thxwJgSlRwaFLd3dhb4Z2WMf3auy7mTCiBo6fYcnFRTpiBBbjAMFm/jrX200V8z5YQ6T0PaE+SuL8U7QmBg==

Merkle root

5397210619679ac63434abd334c13f5aaccbd1dd184ad9d8cac5ebeceaa346bd

Merkle path

["47a53215d9f6c07ee7e408d3682c922100dc489c1ab16a5e03460950f1a4e378","26a54058b8d8af23b757f3ea378e79653b23c711812ffea4d2314db395f4748b","ce29f050f1602f89094e3d4a39d1f3ab09cc2c8f0c1f4d9d10616b48a41169b4","21ecce6556554901a15ae8344bc2cdb91937afad7b7acca586d7e18fe7c9f3a9","2b840e4b464840d204c2993b060a9ab60cc5c6c98ced9b7602635a9f52ef56c9","bd7a52a2557314b89349dfd46756acca3a99113ca1334174462bbada0ab80c5b","578a036765d1f8dd1d8c0e2fa6738beef27eb6508729ff4461f1aef269783433","d2fe421df1f4b337a03a510238db97b90e3ddf060bbbe09ed377d18074fbe2ba","7cc62eedb10779418b201cd1d474cd719788be65fe1f1906a462fffe6f5c66eb","45b655849b61f044d3d54e07e380f8eef474d50cdd3409a59d9d091f992a75c7","90744b84a252d7e51d67bfefdb583359ddb1de8204f826c2012e228fb935f6b4","761d3c69791efc32a160ff138bddbddc7bae13863915424c916d5f32aac8cb96","63caf53777d803af92ac6db2d445588376da791f63be3d8e14916e9cc99957cd","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:taxfix/returns/de","quote":"Am Ende habe ich 4€ zurück erstattet bekommen","rating":1,"review_date":"2026-06-03","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 (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.