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.

“Good insurance.”
Google Play · 5/5 · 2025-01-18

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 3140838741

Proof data

Record hash (SHA-256): de4cde5315cd84f85243f45d2d62dfac10666725fee32d06b91094034dd73fcd
Signature (Ed25519, base64): D7l0Qe6QQhIzpwI80ctV+4AIFfi4I74yl5hyJj8LpVBjyCNuDmvmqCCVAT/u0o7l/0Vujs4+gUX/3urMYoMGCg==
Merkle root: 68ee5f8618d9ce1aa33f2cb5b6f3145b5f909a3c35a03ccc3d10e979b2f81082
Merkle path: ["de4e024f99b6b00a999ce9bdba9503c32a74f489214de11a6e88462f4e67eb9d","7b5ce6df03cbc4eb6fc883b3b54a2d0f0e21191ec4b7e3e745f0405d9a5e78c4","b165946fc755b29c92ca1b8ccc49108d500a455d1e648765d22009e26cd6d551","406b268c21c4c59fe469d5bdedb939ff2cb078e76192abd608d6d5c4822615b1","3c35087a61aef02adeef2228a204a87a88e67c79cfb5ccbe32ef66ff5266d685","4d045538b1c0e0d8e15a3e78d966b3ce9d4202259c279fbacce97e977a4706ac","39d5bf017da152c2c6f26b9d2304aff6cb3d9d7e0fd5a4bad7f1f6d8d8160296","411e91931914d8440cafe87715b6a3438c024ce19b04caeb11be83c348d99ca8","84fcf271f6dbff274e78c3ddbafe3b6c25209e2416c7745dd7b410480a4ffac0","e5376923dc25907972e37d1b60c75ace27b6d500670796a6e5b3106b7b30baff","81b8931c015cdf06659ba0f9ccc0daa0f62824af01921e24653c1e546a4c5b26","f406154aae2c44f1794f6b50643080ce6a776c688e18283a272eb008f69d5ee5","662e3ca042b912b1592c5eed9922bd681d278213ed7e0626715348f767464eb2"]
Anchored: 2026-10-08
Public log entry: search.sigstore.dev, log index 3140838741 · entry 108e9186e8c5677a4791…
Expected log hash: ca4949400cf2d29b49789563ea2e672fc73762380548d6fd65398e40c0d98728 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":"v1791433229105","kind":"published-quote","locale":"en","page":"brand:atupri","quote":"Good insurance.","rating":5,"review_date":"2025-01-18","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=ch.atupri.myatupri","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 (68ee5f8618d9…), 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.