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.

“it can be set to look like a hard drive, so it is easy to use.”
Google Play · 5/5 · 2026-09-06

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 2871093963

Proof data

Record hash (SHA-256): 07dfa037332321bff49dc35cd3df7bc867884e67aa47aa1699083ed56a33f0c3
Signature (Ed25519, base64): WICdd9eRl4MFBJybBirfL32MrtVav5SYof6yjCHBl1sSJT9HmE3vIQEsGDnpOYbYb6uphVUZdDRq+7OkqmNXCg==
Merkle root: 10c793aeb45e0f89b9202290e8cd37afdaa93db762a28319e14e5d167b3b381e
Merkle path: ["07e008b873dc71878c2407947201552af5a604bace348b5c354772a9ec1f6e78","66c11456d3b612c60f7bfd254ff8c7e6603d76f07995f3f391006b7eb1038cb1","f1bdf1a4c3263b361bfb00f52df5c16de94f2e605c382436331f1201c229d600","9877f3ebf151af1ec1920ffa108a8d2f6565de294881dfb1c3ac9b7b7ea33053","0229a8e537c5ef81766a4f9afa78411933811a0f14a41151a211f62950cb538a","196589ab9313b224bcfa44ffd60d84a7461cd7ca4f45517787a0582964b65b75","8086c332b287862c324c3f5f75f8e0809a76c7d5decb33a4d4f2780dd53fe022","e1704d765558a6d21f83df1873fc965c36d8d16faca0134e9f65b0ce968d934f","18967040796684fe55eb92a33c6f639f877d5aba7ca18e11ca50cfdbd7003c2f","32b3d4184fef28cd00554af5220eb8890b704f3eafefd39403844a4b4769eb54","e6c16b416c04f4036012675043ee28cb645b677a30c110b60c8d79fc5348a832","68e985c51622498c4262b6de05994f33143579e20c921ab9191a44c84b470cd4","0c6ff78d9a5bc48641d52eb32f3b328fc570098ea056714475cd5898d1d647f5","d4f621f60f75eda733b8341a621a17886ef25c603b2427ef52f7ad4e3a8ea7d6","86698da34df4e83c54914359e9a6440fbcb5c84f13163aaa7ad9fba21ade0277"]
Anchored: 2026-09-17
Public log entry: search.sigstore.dev, log index 2871093963 · entry 108e9186e8c5677aaa83…
Expected log hash: 2dc7fe816b6373997045fe2c089e9db0b321b7c653bfed462fbdb27b856b80a8 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":"v1789531532649","kind":"published-quote","locale":"en","page":"brand:proton","quote":"it can be set to look like a hard drive, so it is easy to use.","rating":5,"review_date":"2026-09-06","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=me.proton.android.drive","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 (10c793aeb45e…), 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.