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 app doesn’t allow highlight on scanned documents”

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 2582616117

Proof data

Record hash (SHA-256)

17b59d14cc703e5687c65987c1427865222acb4f23beef058ef77b048c2e781f

Signature (Ed25519, base64)

dP1f5tPzEitlY0YGT/jZz1ollg9nOQ54HIPvup0BDoH2FzzHSHwyJrhFP/M+YDSa2M6TuGKltJ3RKBycNLXTCQ==

Merkle root

9d8e2118061e8945f2bd66d48af4d41bec49fc5ac2ae7970f14474403c85bdc4

Merkle path

["17b7250dcb006e427c37af62c4ccd90f77f3139e2c502877cd0af2adf5bdf975","6f914af4679f5cadeeb8c25afabe53bcecfc2981c70a0a1470743c72e0d8af69","4ea45d5d2f7e67221ef378173224b8668b67749bb86f56693345dc4147fdb965","2390780794757bd8d1b9ffc285b823501f0d6a9951acde2853f259809a0c6c40","273f41561b6c4750913ec5ce538eb04769f9611239195362a029c872d0ccabc2","913ac7503f02f291ec976791b2ff162b35cab996e4c7d76d43db0dd41ba4d2ee","5cf7b36be13062ccb5de558fca20346d58d40110f13b09552826dd404cb0f9db","3bbcea1ddc943132e55dec84f27f83d38edbf17b4d79f1897c1ee9791b91c9b9","ea0fbb09fef9318124ab399d7c90812bce219fe9530ea510f33d799310e9e629","d1be7ba246365609b2a9659c353c12c0eabfbbaa8e94b3dc6e2aa31d6114d77f","2c17082f27be43fc136ccda1d651cd32ea28cc7564ec8db3b7fee7fda890a196","4a829cc4819bccb2252c7060d242a979547a534ad16930fb8d55ce7bec8c4620","e94cada08df1868a2e48549247fae87f2147cc360c1565604cfc61c670e9f86d","06ef0af9e89fc67c0d3893fca6fc616c0d6440ace9f21e5de833bce51809dcc7","9ab50226de18913fd10dfc030adeb43f34868f074a98e3eba882908660737bc6"]

Anchored

2026-08-25

Public log entry

search.sigstore.dev, log index 2582616117 · entry 108e9186e8c5677a09b5…

Expected log hash

d7708a8d5cc2ca7faff1f105ce6603ac0b5d5c740c6cd85cf034e25532cbb25a 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":"v1787626691405","kind":"published-quote","locale":"en","page":"theme:acrobat/fit/en","quote":"The app doesn’t allow highlight on scanned documents","rating":1,"review_date":"2025-04-06","source":"Apple App Store","source_url":"https://apps.apple.com/hk/app/id469337564?see-all=reviews","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 (9d8e2118061e…), 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.