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.

“Sehr umfangreich, Super PDF-Bearbeitung”
Google Play · 5/5 · 2025-02-03

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 3258490685

Proof data

Record hash (SHA-256): 1cce669af712c9ae63ef1d3a352ca9b10491a15c14baaa2182effbf0696be205
Signature (Ed25519, base64): HLMRtKyNMef9aLasCCL9ieYfxxqYhOftweDKRsoUrQS6iDcyiDn/Th5DS6x2mx71QeONUZ/qtyvVysWNxGI7Cw==
Merkle root: 2824dde473714ae3dd30e88823a625346b1b80d9a55db059d813071b78952b5e
Merkle path: ["1cde8f8b67d8f12d9a49cb9a07a98d3e5b92adde20808bc7ed2a20a8185468f8","c33848859b9fbe8a3dbc2e888d450719c59363572dae16426e7f1f1b3a7470d3","ca075140f1b2ed5817dc0084bc559e77ce234061f79167b2a640a646899d75d4","3e60d30973c762bd403ebb5caf22ad3b478dccd690df27b4442f255f2c094fe4","d6fdad1404574dc739653cf8d5773835509f9233a0aee3bacc99a443d0b58dcc","729737cf841c440101352d88f7f244f789e0f3c860cf20ab304668fe373d7aa7","04441fb5a41adeb919f91acc818b29918b7e11facbf015bb108f8a78e16db74c","81367fa38d1a683985755fd5fa37a426651eccfd33ba5bdd591ec9dda4bd77f3","bb7300c8015b5d799d11672b3eb63b907be253d3efcf6f06c2b988818405b433","306155494d6c4857fb6c918dafcf05d8933cb3332f91854d3ebfca6b9bb3663a","716952c4b3f4d5eaac217f109209b5193e771e846b39200d2f4f443482f463a3","d6bbb08f9fb75532ce4c76d4d84bb93a214afb09f8a4465fc6b0ac552770a707","592828a30de1f38ebd3532fd0b7bb1288bdbe2c152bea05374fc6e7c174f1dc0","c0fc8298b38da3131f46ba94c60b50a7d3f5bfa16abd1c4c451dec4dd9f28f96"]
Anchored: 2026-10-15
Public log entry: search.sigstore.dev, log index 3258490685 · entry 108e9186e8c5677a9f14…
Expected log hash: adabd3d63ce5c0d8fcac6f6311f5b010ca6003db409229d5e92687bb33c3624f 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":"v1792032587528","kind":"published-quote","locale":"de","page":"brand:xodo","quote":"Sehr umfangreich, Super PDF-Bearbeitung","rating":5,"review_date":"2025-02-03","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.xodo.pdf.reader","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 (2824dde47371…), 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.