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.

“even when given option of converting with watermark”
Google Play · 1/5 · 2026-08-02

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 3221102617

Proof data

Record hash (SHA-256): 1ef4c35d816b844528fd993ccfefab693052c41410b730d6e682d5179d62d48f
Signature (Ed25519, base64): kqZjonmsXogHGY0FnAAa0zleqVXCw1/dJq7dvm3l27LepuQkg6ZPJ+3068hvCYlD0MuODNKtJXILaQ90vkfJBg==
Merkle root: 0eabe705d05480191badde562bf975cad5c107b96758d59c47efce7f02d55f90
Merkle path: ["1ef5d8bbcfdc657149079db6f63d9c41e55f43d34f4529d0f493d4f74b3dd495","4308a72d6cf7eede2d2dd1178aa6308d4626d364fa5c5057b482c99a05c7f119","5a1a658013733bb04c18d26d6d243ca66d36c69d950fff180c7e5ccb12b44d7a","b5e84feb2b984812a0b73ad81428e28842392e28504401f1b60a66633be7ece6","2a4cecacb255ee8c89748a7e7641bd494f4fa82e65b8fed0a871176247a85bd5","1d4955d834c6832512268f25efb6376ab758e75bbf4411779e200c7addffad3a","c87391f1726bd2d86dc41e0c9a9abece815b365db96bf814df1e4ff144c46108","63c4f3ca32234244734bea924fb06e73b6933d7ffc4be5aafe6af2afced2d45d","c603477cf34e6c0ba89070ee5e2cd746a8caef62eb24b78192b9f9b6d337f472","6f43109bf2ae95bedd7a44ceb97cfca9ef9634df5f4c54d8303f49d0dbfc230f","7232acd2dfdb4f088090eab03a52ea2d5aa35d51e392dac0824cf82297b6f8fd","82f5128b6ceeedb9a831b08ffc6d055ce6f4d46fcb0cd752cd3e29e60363adcf","77b2b0d1c988b3add7b1fbedc3ecc12dd0cda6044be7bb06798825ccc94efd81","2e4cbc8181996227b6c5ce6cb00a4128780f0a2cf8618660b840716e64b4286b"]
Anchored: 2026-10-12
Public log entry: search.sigstore.dev, log index 3221102617 · entry 108e9186e8c5677a7ec1…
Expected log hash: 701a9a476cb781c93a6209c8572d258b6cbf70f6f15d478bab1da1537af9506b 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":"v1791779915538","kind":"published-quote","locale":"de","page":"brand:xodo","quote":"even when given option of converting with watermark","rating":1,"review_date":"2026-08-02","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.xodo.pdf.reader","v":1}

Verify in the public log

Open the Rekor entry (pre-filled with this proof's log index).
In the entry, compare spec.data.hash.value with the "Expected log hash" above: it is the SHA-256 of the Merkle root string (0eabe705d054…), which ties this proof's root to the log entry.
Decode spec.signature.publicKey.content from base64: it must equal Citatio's published key at /.well-known/citatio-signing.json.
The entry's integratedTime is the independent timestamp: the root, and with it this quote, existed no later than that moment.
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.