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.

“A light and modest app without any unnecessary features.”

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 2524810465

Proof data

Record hash (SHA-256)

fe83d367257e62a5c7d83d8d971dd1401b103b3dc16d6dce479214d75a5b71f2

Signature (Ed25519, base64)

5Dpd0VBMJT8xO6NauDIXUnAhw1hN3Omm3nqi5CA0OjZbqeDBPjAiHvMxJKJWFICrnh60FJ1D2mV6QJz5yYC6AQ==

Merkle root

3e1c67438f658ba7fd015e6979c1bfd82d90efb0848cecbd4d902d6b2ed171d3

Merkle path

["fe75a0beed374f940283ef5d2e3f66dd94b8d03e1ab95ed2e71fd092411b883b","1c554b9fac40f005df4816b2eb2874e7ff501c0e5772600a756f24ab93e88094","ae8df70cba15d0b7e4f3a00d5aa5ffda22a2be94290c139aad2048154c3e0d96","1f0000b784bcd9665cf45809cce972f9c010c5c1cf3d834fd871be48177f6b71","fd644dbee9d6ce784fcd5d8731f3794e2f95e943704c6c9070e785178ff7ae99","d280060d38709b81cd6ba842f095a090a7fcbd7d12f4095ae7dda30b362baa88","448a8d432474f3ffa0f753068a0b1b572684fecc938c78d5e58825433f2e8da9","03efdc3454e230467c6ef964aba3412e03fff8839006069d200445cc01fd0488","b6559c6d579d7ccef8ca6152e9f69777bf90f9b10af071c5aa21375a1e030941","8e843967843f45fca5ae295bb8067b393f5706c9dd4aff34b47ed9968e42e02e","bb7bbf6f568971e46c339201da8a96bb6a6c799d83bcb98c5de8e5a4b9d99a0c","48925020460bba3dda217ec8c974e96be1bded9d1769192f63a66523a3769db0"]

Anchored

2026-08-20

Public log entry

search.sigstore.dev, log index 2524810465 · entry 108e9186e8c5677af074…

Expected log hash

129b219cb6155ac24569a579c61e8fc9cc2d89305732944b8849d5e719dfd073 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":"v1787193927339","kind":"published-quote","locale":"de","page":"brand:xodo","quote":"A light and modest app without any unnecessary features.","rating":5,"review_date":"2026-08-07","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.xodo.pdf.reader","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 (3e1c67438f65…), 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.