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.

“Seit 2022 gebe ich meine Steuererklärung über Zasta ab”
Google Play · 5/5 · 2026-09-18

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): e79271b4b0963c7545ccd204accf46fa442c22ab97af8eb8790590f254bded29
Signature (Ed25519, base64): N6n8tYS4xpnruwQH6N5QVUeAxVLC9hp8M6K4aueSkqJYdhNBmOEtLbIiFKufdLVcLsm2ZbBU8KOdaotr2FYJBQ==
Merkle root: 5397210619679ac63434abd334c13f5aaccbd1dd184ad9d8cac5ebeceaa346bd
Merkle path: ["e79ad8290a4295483dbe3787eef44add70da1d07e366bad39cb5271a7683548c","f5256e6a5d5e4c8ea86ca7118ef0fac6910760a68d0b704d44c91ddba0b77b7f","80db4bd2e1227616ef58f3e363f6483ceb588aabaf45ba56b7edd03fe104a376","7fd053895a03a2a9bf7c4e5fdb145c5870cb3c351dbfe88e2754cdf10d74799d","66e8c63dbb4e9eff03eb3da4866085bef88551bf8130a2f88f93808e48d8f2b8","f54ebcaaf304ff4d5dbed7d42f0c925dab8dc73ab0adea7e6853f46fb9d2dcf0","63455a06ce89baa5546dbcaa69baae59b6f7430061ee9d9d360e69aed13a2cf7","4c4f6f6fb320c977ce90f95b48dd2ddf7f20a538be478ffdcee49479ae7c85cc","54af6d9288f1ce0e54d95d6ae14e0c88b3810347c935c288284ef818bfc35f91","a73c98523dd06aaaf48ac105a3d031114ea0d76d343dc2ec6e9666f9459bc14b","d60992637bb22397d5bfae3fff728cd28fad6f7d54df1da8670930d436bc8926","2b37358c7252f903ec12e33f1d8c9795879d270812aa5678bbf73d51654edb9b","06275dc2003d93dff6ae62dae412a16841a241c39c4d4453231315397101e1bd","aaa7b399bae700ce8013bce7d22a5956b227f2e0adcc638da32f9fc5e72da67e","77ebbc5a767f49a9f64068a716a8c843de0ea8d44adc624726bf46e2e415a41e"]
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/ordering/de","quote":"Seit 2022 gebe ich meine Steuererklärung über Zasta ab","rating":5,"review_date":"2026-09-18","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=de.zasta.app","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 (539721061967…), 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.