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.

“The PIXUM application itself is very practical and easy to handle.”
Apple App Store · 3/5 · 2025-12-22

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 3637495315

Proof data

Record hash (SHA-256): 0458529e9680395b3e5a2d1203305a14c9cce5f3ec2f4b9d541abfc1cb470706
Signature (Ed25519, base64): VDNRSBtWevhwpEa1venSdz7OmB+lvStdAj1Mi71QBykdKvlUEowRnVWQLDoSqVS50vLNHZ3P846koiDWuiTMDQ==
Merkle root: 97834906e0f396a2a898c3c84b9779decf7f82b4c777ec0274321a50a91b4a3e
Merkle path: ["0460a46a5765f13b0de0f866023020625e05dd43c6dc58b1ac236c887dc726fa","fe62c2f10b9cd6ed9067fa3aebd9ae7436117c5c8d40d7bb929f755bc43ab17b","90ac22e7f0f24da4217603e17115e82056290995553bfb55ddcfc54396ffba6c","a6b019d88f7be280a2c2d29514cd1c7ac9e15e8759d604e2b038f413d5ee9005","ca89ff43aa024dd89ed3ea08a2d7f57de9a618f0d1c489509f057ea1487382d3","41e32378f72dea7b01eabab467a36507ea5a07e6014d0d677e1ebc3ba9223f30","667a281646b0ee52fd2dc05f2dab48f2288368e40ea8b16111e907ca0df4e250","2a55cfba50a625b11e544afe15a0e5d3186f375404cd7b11a8f2a2106168899b","5029de7dee811dcc751f63b735bfc88f2b7ce397a4b55d3bf43fc4a00cc4d3bc","f835223889cca7e39941e3de3920758673cadb6135e60c0246eda7c58f58cb1b","333e1b291b35b779bd8769aaafaab2e4879b0442b64f367b3854c7dfc9e9d73f","cd5985dc942dc066cdb074801911565aea14ac0cb7ebbc4b2f477ebb49273066","9e451ae1190daf793986452fa75815e01a9560b27b1cf6d44b59996d2be9d5de"]
Anchored: 2026-11-02
Public log entry: search.sigstore.dev, log index 3637495315 · entry 108e9186e8c5677a69a5…
Expected log hash: 7967f0a54a200ce65e58f0ab49a25f2626f4cdbc93b074229fb004a3c94f4a58 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":"v1793588326916","kind":"published-quote","locale":"en","page":"brand:pixum","quote":"The PIXUM application itself is very practical and easy to handle.","rating":3,"review_date":"2025-12-22","source":"Apple App Store","source_url":"https://apps.apple.com/de/app/id1319898516?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 (97834906e0f3…), 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.