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 3258201873

Proof data

Record hash (SHA-256): 55d03436d5193a163a7c5c47e2dd9030f272a7ef3be12a76a61c5d34460fbd81
Signature (Ed25519, base64): BWON6aesrDFvofdqdrGZ/h6bsf6cn9+6h9u9LCgsSrhcX8rhcIjabC+1pW9DEeSFxqaQSLl3tyajYBUkUg+ADw==
Merkle root: 07e2d0de1409df9008c16531abbe2f8515ebe8e55b87a042e18a21958771618d
Merkle path: ["55cc5050e4b1da302ff6d5c5eee15c72531b201688beb76c281c0394948e5290","a83a38a02bb788ee65ed2f145b24dea0c4ee68251e9c3a082e452fbb1774f2c6","8853e9332cd2c6666e548bac2ad509ed0b08225e5bd9eebcab31a4967cccb56f","ec458a6c9864538d18f06c60771c7740f1bbac9a4ef94c7d12f20e15456019ee","d42d6f958cd8969f95d6a6028dcc9f82d65984630f661dd505790da38951cd34","4a60ca022a890c678c2977a7864251fdf92fb7f54fdb43c9135e7c258f12947c","7ec1fcac12b5fdf0c634051171e21e2f83cf7a212802ec44c5c05c323d4a5034","a5bf45b41e18e3b1309acc9e2d8fa8f1f9852870cc1cf14c9f88efdef92c5bb9","1aeeaa9210b2934fe841a7537168116fd78dc3686380347442cb2a5b7657c550","712515c8cde8a8e08921c910126bb7d7830bd7b6a754b12e5cc5b98f710400e9","a33f52125c92d9dc1b49433c16365af7aa32ac81cf46a8b804a462d47c9d335f","4d663f5926241f266352195a33380a37df27997d5729c36639e1e95dee72a508","48799695a25196e19e6c0bfac80015199da758df0acb5108e4c517a5d6bc016d","fd7778befb9f979134b4d8a1dfa78827e64c761abd83cab9d5ecd5bc01d8ea14"]
Anchored: 2026-10-15
Public log entry: search.sigstore.dev, log index 3258201873 · entry 108e9186e8c5677ab04f…
Expected log hash: 205b794967d70c4ec2534ff3766e47506acf44c7c68740049459394876120dfa 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":"v1792030899870","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 (07e2d0de1409…), 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.