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.

“They charged me 200 euro without providing the service of tax return.”
Google Play · 1/5 · 2026-09-11

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 2882354328

Proof data

Record hash (SHA-256): ed0a22ff0332ed28dc830fb613c511b06f1a2debb6f97a3389c0bdb8674241f8
Signature (Ed25519, base64): M0elSA58vyOcVTlSxsP2HHdsFmI6iiM0ABjMezO8QuPYr3CUngwYiomBakMKGhMIqkLEAhGGmTZjFaak7IfmBg==
Merkle root: a893faa173c6b378c8d050262e841ab57fdd89b71985eabc0906c40abd5b6a6c
Merkle path: ["ed0ba9aeb9a8ff220fa29593cb84b15825d0ef6777c6995a33bc68b43898e288","b79be4a7a8e83966402136ec39884ecbca74eb1c5779da4d6b237553fd6e63e0","f4b5c54fc877ed1cb3b22e9d137dc383cba19d090dd84ce3251cc3c05e4dfaf2","295376228164d2ac344fcc58670fbf8041686d839dc7473735d16f19a242ae2e","c8c7977d1bf3cee27e50962c4cc981cdc03d446e7e3d5fc9d0d7f9048e5ec882","268297280f67cdd4ecf210e645a76609d18a22b2936c16e67d60ce371e45a3d5","b212ad6b224ce63e3c949935df504d3e1e479015cf136a4e78047d4809c83c81","d2651d87b09585601213e9cb9d47f39df51b845cbb6ba76c46882dbbaee77406","2adfa1f1b0523e54dd6070f7aa58788a688eb07ca29bdddd4d10157433751b9e","a3c525fd12fab20df9f90446a75aaabef7ef7fc8bdc2ec740a5be18e3d42e27e","29ddf35eda21d3648a7dfc61ff7425dfe99da396b2e6b22da2657bf820b21625","a4a97919c4175c0448825271c49799010a0d6acdd566eb4145c0a8dd4727efc2","e3dfd0ce13b4f18d9be466f664decf913e4c761baf693ad01a6280777721ad5e","96604383e0e3cd500d4560285508cbcc8eef5ad88e576fedea27dc38c3fc8ebd","142316fcc45d8fbb9a33df6e9be8f563650927c4e612ee96d4bcac9064ee60c4"]
Anchored: 2026-09-18
Public log entry: search.sigstore.dev, log index 2882354328 · entry 108e9186e8c5677a08a7…
Expected log hash: 5510a497abfe2e680a39c301b0d905c2a575bae0a1f389fbdd7b86babf05240f 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":"v1789619628558","kind":"published-quote","locale":"de","page":"theme:taxfix/service/de","quote":"They charged me 200 euro without providing the service of tax return.","rating":1,"review_date":"2026-09-11","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=de.taxfix","v":1}

Verify in the public log

Open the Rekor entry (pre-filled with this proof's log index).
In the entry, compare spec.data.hash.value with the "Expected log hash" above: it is the SHA-256 of the Merkle root string (a893faa173c6…), which ties this proof's root to the log entry.
Decode spec.signature.publicKey.content from base64: it must equal Citatio's published key at /.well-known/citatio-signing.json.
The entry's integratedTime is the independent timestamp: the root, and with it this quote, existed no later than that moment.
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.