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 2543154575

Proof data

Record hash (SHA-256): 66c3b1f79d8d14f90aaaa745cd0742dce7a6250c378ac468388f6ddf909e0522
Signature (Ed25519, base64): YIfFjgBGycNJX2Bi+zOJN7EIZ33Omksv8fFVpnAfdq8jBQp1tTk1CfAyXF7f7jo2FfZKpgPEXzRUCgW5oTSaDw==
Merkle root: 9ca8f1c1ad15a78206ceaec922c537c0b0ac598e12c9c25877f5e0e19de38c6e
Merkle path: ["66c55af67b0c960d91cdbe0370ca07ddfc6a610cb79997580da5ccb4a9a72e4b","978d66cdea6131a16478adc5704cd1ba3ca01cf5b12ff138bbb692bfdced16f9","a00a9c4b6792f6c126fd9ac06bf30d8b622f792e069c8fd0d4f9806c784d8c83","a1bcd30fc5dbaf06f1714487603346cf17434b2250da69efab64ce06bbb2983e","4e98ba88e8998e06e48daa1cae11ba3c2754096a682fe85a3e91f6e3efd1e077","7a31dcb1036fe8d7e4cff56a16f06614c302f65678dd2de7f42f7ac23d435cc8","ed4e9c84ed5149de3d0ca8d552939f440dc30be314b7b26387d00c854260dbf7","63eac9217b4b5cbe81879af28120deabb43901ffb7fa1b41c4fd6352b3db3702","424f048b07a859010347511da1018df0ad292fd3d0ef6853911bbfc39d0a9216","356b5afb583f295596ea9d4e8dff86ce69a41f9045f5853054db8d05ed027a72","5dabcdb14e83e92f6a4b0a0b6f082dc87d9eb8769967094e0c95e4c11a27f66f","a383dda54097c814975bbe4525893869077a5f762d195960171df04e5dba1c42","969114be98209aceeb13470003a6154b1294d7c8dc772e07d6980600f808e932","bb86c0787e05591c350bbf95c58c2d99f0ba679999db51dee6e8bbec88a42a61","deb69ba818cac6d60ad262ee5febe93ecfd14e4c978778af299f82ef8a69b934"]
Anchored: 2026-08-21
Public log entry: search.sigstore.dev, log index 2543154575 · entry 108e9186e8c5677a0eab…
Expected log hash: 0099eed9d12aa99aaa44ed875b87ffaf90c46527b61dfd92cdd4db2c148aef65 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":"v1787284115102","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 (9ca8f1c1ad15…), 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.