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.

“rip update one month later: these have gotten worse”

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 2513802575

Proof data

Record hash (SHA-256)

63b1800617f52d8547bb74c51acdb4de763050382fd5495196117085f8a6d71b

Signature (Ed25519, base64)

0DX63ZSJJtukpBzW4O6Vu3e1M5kX9FlV4NXJ1OpS2Lh5PlCOJWvHDi0qBCUD85xtlq5cQPdwkDV1ckzwY/nuCA==

Merkle root

80de158564b7616572ca0c0059561f6ec90cd5bce49a388e61df989f3f6f2a86

Merkle path

["63af2bde0eab7109200ee1f42900c0b59070180609a1c529736dde486473b9c3","2cb74726a4c53e44afd79c09857e8e5aaee40e34e80ee9d8ebe2bc71d28ac8b7","5ab35ae08d019eaf17a464cfc3101ed4b37f61e4425c38813b158e6cbbb62d05","2e0cb026e82c093e40accc0e7c7fc1c0aad80a1dc1cb522090ad2ebc09345071","15d48d7c472623ce848ef800244792e19996d6556611ffaf0e681d8f535567fa","274ca400e852a1cbd985db4f8c55958351a846ea4099b668754603487af23ba2","131877d032b8c962db4c1775917947df5525936ea9b9fc131f8ed42d8dcc8df7","3049f3eb8a59e6cb883cbb180c4848c10f27bfa4c31ffab834a82a42d3f3820d","40637605fe7527757858bf15e7c00c7dcdda3dae696d0fff2af50242164bd2fa","985a75d818e9245ff6871c39a508f5c104992518a69cd60130670e434fcfda64","b02e4791599e4ed3f86f31fe77c3d89281957363014bfd7cb4bad081366c2891","fb884b13c6c7b6fa45ec692f0cd19450269fcd13629216d89df8f4f8f28f63db","4030647c2ef4f8e3330609d1b1b8f3b58008674f60e870e605f772c875dc6aa9","3492e7b3aa9fff62b956cd07fc3f980ebe20033aec60bffc5a515ff87c949351","68889fd35b89925b8d265e65260618471cd9c2f5458718fde3d6cb3829d8f00f"]

Anchored

2026-08-19

Public log entry

search.sigstore.dev, log index 2513802575 · entry 108e9186e8c5677a9216…

Expected log hash

5899b5d0ea18fa3c879147333708054c2e3cd77662f2b6f633aa3b5d5512bbe5 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":"v1787121142818","kind":"published-quote","locale":"de","page":"theme:xodo/ordering/de","quote":"rip update one month later: these have gotten worse","rating":1,"review_date":"2026-05-12","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 (80de158564b7…), 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.