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.

“I paid for the full pro version years ago”

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 2514297706

Proof data

Record hash (SHA-256)

5a74ecd903e9266b94ed58853468eb02d97b42f2bc37d5b507f9e7c874f3831f

Signature (Ed25519, base64)

9TQ9ZEAXI83MK3D7En5lCbhugyr32o/E8g4Y02kT/doXYOSkN6zaHIIcKXzOD6SHeOwuqXVCD/nBAfck8/dtDQ==

Merkle root

1dd7fec10002d9304505761bfad9c0f048c94d1d6a0775b6fc4291f712d4106b

Merkle path

["5a74cb2f2ea5291caa11df33d15e9fc976c3b3c75c666e83f30a1563bd26adf1","c9dec6f2377f185987559dba2cea6202cdb4125cf0e235a8fc913cf1f845af27","108c440e4b625f2014c06cf8cecaeba064c1d2298015dbf0d611bd66abdef112","b4f593d12c85c05105277e6d5e4d71c4cabfb23a640fb3bf0e8b0c1add4ca429","cbe7396a92cf4760931ba7894343435f9938137d8901d8b89dc9b544c99930bb","1c1cfa057b3f09bab51dbf7fb15fa34118626f3195bd4483adf025931e39fdfe","c77aede5e3f07cffc7b7977ae91611e902513ded49c2b969f6e4b7be1cdb537d","9221a869f36ed0342a2c7ca42604da17bcd0b4a59ce0a81f0005c5055f88c865","3385331336370f5a187da3de78df3ff86fdb506421a458e40f1cc1814972be29","febb974dddf5eff9cf4be7c477ea05bef113be901c02e8ffdb905aecafeb32d8","2a9edb36f0eca0a34aad7d9238d48e633afd211bad8e84acc0eb32cc2fd17203","f6b2fb76d94ba09b30b043e51931dfd4ca4692e18020d8bdfdafe27e87c0cde6","b7aec9f3c94c31d180edcce99e1c822102bdcebd141a0695527f2567ce2d6e06","96733967bd879589a2091176049a40f13c26bf93f656924a17f15f3f405bad21","54bbc2d7930ffae8e416e662d825fe408002ca5c9c581c2388ff0eb5a37134ae"]

Anchored

2026-08-19

Public log entry

search.sigstore.dev, log index 2514297706 · entry 108e9186e8c5677ab801…

Expected log hash

861cb9c1424d2f408888a591a8305206c340f8249f4a4581b32f940ce8815405 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":"v1787126020727","kind":"published-quote","locale":"de","page":"theme:xodo/price/de","quote":"I paid for the full pro version years ago","rating":1,"review_date":"2026-07-30","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 (1dd7fec10002…), 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.