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.

“why took payment”

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 2543857133

Proof data

Record hash (SHA-256)

fe73cf65252aada34675659efffb48ddbf475b487625b2deac2926e87c03d525

Signature (Ed25519, base64)

JO7IkOYje/FZ9Yptnr4K2k0wVEuKRAOEIeaIuAbxP7SdbKBaqR2umlSHDmXMeAX9QcLS93pvBlLeivUN9+GIAA==

Merkle root

cee60bb6c0816d1bc69326ea12cf0c5c00cbea13afa283147bf24b52e30f839c

Merkle path

["fe6ec79c8ca44b2e6b424a78183c79a7df81725f1142172fceaae9cbadf95dea","6a33b95c33bd9a2df84eb0d6e54b1073eee49b2b169c7b9e43f2eb40503d70df","396dc9cbf0e2b523bf5fb90cf502dd1d0b786a4ef7f627caa7231b0c51950cd8","c1237719ce92163c3f779d7c545a3f407dec73abe219ec7c8ecc3d1e0e03b920","01e2a2413c88f218cc6d07f9f1154f3d3c535d470d6dd24d77e5599d8136d0de","8c2d23d1559fe76fbf54e72f24b68cbfc5e63013158dc4837fc5fa9cd1906ba8","ac2a8ee4e23b17b9badfb7f10a0306b85c7913df179497aa8246b4697066a433","5b00c60f4253fe3e86ce626f1e612dfa2db2fc94fee232f59677ba8d8ef5ee7e","82d4e0812c57118b97c65fbfa7b122207c7835edb0724da389bee9fa1b741b97","a00ebfabc5ef083e95952d84021c98d3cc55302f80b66bb210097ff6a1614ef6","8eede5eaaaa39aa311d5d82caff567170f05a3f5da864babf80accb43c38ea8d","78caf62780a7cd32d3591546c7643819cd8e2ced71a3bdf696f7fa96ed9676b7"]

Anchored

2026-08-21

Public log entry

search.sigstore.dev, log index 2543857133 · entry 108e9186e8c5677a5231…

Expected log hash

d8e1ac8b740526c2915424d7f7c6bce881a4ef05d0a3a3dbd88e4c760e36623e 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":"v1787288037224","kind":"published-quote","locale":"de","page":"brand:xodo","quote":"why took payment","rating":1,"review_date":"2026-07-22","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 (cee60bb6c081…), 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.