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 helps me to drop down notes”
Apple App Store · 5/5 · 2026-04-28

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): 1887a236afb7b0b3651bf21db51b2eedc900e4ffa8d63a9a9b08a9814c6fb6d1
Signature (Ed25519, base64): 5pkXQNJLvZV2VnHinq8i+AootlqiY0uGhHn4Mnx/CZUOuWiahRZjJAOIsnyles85LrAfdM4EwB29JLZUZbTQCQ==
Merkle root: 10c793aeb45e0f89b9202290e8cd37afdaa93db762a28319e14e5d167b3b381e
Merkle path: ["1885e2e26b2aed42102c0a3621f875d93e42f1c1f1778e933c809451db8830d4","d0328c2dbd8bc3ad08dcc375bbf482e410c4e948deabad1d6b3b08c3d719cfc7","bf44726e6ef0f5e418895f412a9aca7eeac1cc717e98c63a8884d2ea71c56276","f409a84a006c16054d384abecc1fe6dae0c3bad5921ee223920e317d86e11aaf","6932cb6ec0a4348391863059a6ed7d0b78d1af44bc0509ad4c1acb2147a96bef","5b27acbd844073795736f710d007a85306485a17c731827970074172bf982c80","24ad9e1380d96b1e05089b4ce0d607df6e69e706904290d5f9fc346675f252e2","3695bd2226d0e0caee0f50f76eff45ad47d924c0d09aff8edccfa258b370dc06","38185e0e34af11ae9093bd8b8727716948448ecfb42efbac3765f4afc7fc6c27","67a374372f2b2651e6d769023cbfb256d8ce1d524290a35454cf381644c079ca","285680a82d36daf668332db12210c1531a932b630de40472caf304814e0672db","bd500ad3cdc114ced49315e17af2859014ca88bf14698b98de4c1f6f0f48cf21","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":"theme:acrobat/fit/en","quote":"it helps me to drop down notes","rating":5,"review_date":"2026-04-28","source":"Apple App Store","source_url":"https://apps.apple.com/hk/app/id469337564?see-all=reviews","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.