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.

“The report from the tax office arrived the day before yesterday stating how much money I would get back, and it matched the amount Zasta predicted.”
Google Play · 5/5 · 2026-09-16

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 3161668256

Proof data

Record hash (SHA-256): 56ed3d5f4745492cb65dcd2a0b4ba36c5d44c24c4933bca8521fd84eb39f1d68
Signature (Ed25519, base64): 8wzW/r2yC4MwvS+yIfH2EBDZKxsWfgV9PvbkpkDlYQMlXu4YpenVR497Rl6HUcpxUE98YY2QFDLs42GqRuKbAw==
Merkle root: dae11b7f399fa27d7e91aa4463415971ac3f4413815a3c608e4b798805e78c60
Merkle path: ["56f0e7c0ce1bdccf46127c41427fb6150cdea8c1d20715549f57ebe183afd6e7","1595bf3034db537a382ad0f1015d4be9d8138ecd7f86ee55772fcb7e78ac2db9","1203b5f40094f76210ddf1d6b8db6ab0c889118c9ad27d1e6385bb8137bec3fb","ca7b8b3ac5a18c477911107933df137382c361a869ee8872727d8b80b4437d12","7fb67769b60f3de00e83958cdf663939521f52b64f0ec23c1fdf630484331041","14df7a6ac51075682e706ac7e0e9c681c7a76226296cc6aa3ffc7b59a6df3446","2d9c6d7c33a458cd33dea4974178ba79c28f66a38057d4135c0e6a4db050bccc","9b4ee0ad2dc76afb8d94fe2aeb630152aa0b859227658500132567a6ccfa4310","6547babed4dc985b9493a06c7487e7f67d0c98555406804742d62a054b38846e","17199b6429cf0c28075ca762b6606c3c25dabccb6e2b8a73da598175232fb6cf","647ee43da6bb010189a6983bca644c74a2caf28ed54626f3771ef91f375aea5b","238e8856e99c3591b9b8986c8b8992adedc0eb19f6964bc9ac1f2a5d2bee6c81","949d8c47eaa97d842aa9c8296efb6f847bd664f3f354c637fceb9b898ce49f14","29fee1ee29171f2526142193c918f4d151680a806133c34179179c2fe722d806","6771b856bc54b9b41031b35ff7640ad54c5be8f800e1967d73d242437a9508b8"]
Anchored: 2026-10-09
Public log entry: search.sigstore.dev, log index 3161668256 · entry 108e9186e8c5677a744e…
Expected log hash: dbaeb9745833827bd692133822ce98bad4dbbf6d52d00fcfdadfb4c533d214a6 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":"v1791537031439","kind":"published-quote","locale":"en","page":"theme:zasta/communication/en","quote":"The report from the tax office arrived the day before yesterday stating how much money I would get back, and it matched the amount Zasta predicted.","rating":5,"review_date":"2026-09-16","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 (dae11b7f399f…), 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.