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 purchase is over 2 hours late”
Google Play · 1/5 · 2026-09-02

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 2890214870

Proof data

Record hash (SHA-256): 4d0ea12a4b9cdd2e0705c7c6bdeaef69669cb0a9d18191c6539e7ebe1fddc05c
Signature (Ed25519, base64): Tcu/Surh48LJCpQCF1gxn43gFMWIhn/F36WjKGIrHQSNemySbaEZrMmAYfXs+Ysa5Qagu+ocGdW4d4XcI6ktCQ==
Merkle root: 04b39eaa56e1cf8f75dc8eac18bf6942167c8418ea731a7471223f0be60e3e6c
Merkle path: ["4d0e26f1e55d1458b96f047b5aa4a7b27e9a55680b565e8191a0ffaf1a09ab03","e4d3a0bf4dcd7930f6988c4c4d97d2bc9222eca1828863aee9d1075b0fc500f8","7c37770dc29413bb0bbb4c99ce614f1b97b7a082521a7903ccfc6db8d863554b","d5849ac5bc1a04ff3154d04d592cff6fdd82b40043057461713b0502a8914ff8","901f49e5081ca52655e8b183f9c0c0ef9739cb42bf9d1c1fddc5a0c8a57acd0c","cf5cf7a35283d64039d4a066f9454c1f8bcc46d6dcfc3da6881a1443b6982aa1","9c55efa4ca9eabfb3244991e88acb57ea763743f4945d4eaecef5b781e82d175","67b3b864fdda97514b8903ce349057845eb266c94d14f09f9a4419d22dbf69c7","829f7a964c2aa5ca050b26ce6e77a85b81a8685904da3f320315ff5f7d4820ce","92e3385b29532ca06cd017fc6888730ccbadc240c1504276ec80745df98f38f5","f0595b91093a42f963c5f4ccbbd4eda5c3fa85d7ea8db8604cc0983281b111fd","dd759c3bba11d3e1478fedb143fcb14237bbac94f760c71aba28b9f5afca77fc","858da9c5e5c810f227c1c3047d0873181b65380781d4a4eb884968faf30fbb8e","c5cc7ab668acd70733708092004f0624164aaac2bfd55cacefad6637b26146b8","695aed3f647000e14ed985f8c4d6045987ffb913dd12c814d6f9a495d4d25fd3"]
Anchored: 2026-09-19
Public log entry: search.sigstore.dev, log index 2890214870 · entry 108e9186e8c5677af53b…
Expected log hash: 1f3acef0f063246e051bf412e40f4279cb96ed334ff7b0647a13320c1b31c4fa 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":"v1789722569406","kind":"published-quote","locale":"en","page":"theme:quero-delivery/delivery/en","quote":"The purchase is over 2 hours late","rating":1,"review_date":"2026-09-02","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.querodelivery","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 (04b39eaa56e1…), 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.