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 processing was very fast”
Google Play · 5/5 · 2026-09-17

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 3272785693

Proof data

Record hash (SHA-256): 4cc62ef0058ec7cc44e2a9320d88689ee3bd11236ac4b55db7831339f6d75d53
Signature (Ed25519, base64): FED9CKgtV8QkA44gk3HfzStfqljNhUcEO073CtWVa2nAVmD3xG4U2WwzYGW+vAZHI3vyNcE5Fd8GJ4Y3O+rsBQ==
Merkle root: 42ee8ba4b974d737f78b7f168d0af8ea0510697ac4ab4c6db44b5522bd195660
Merkle path: ["4cc38965c7f318f312b040e9bfae553d4a412e987ccebc5c51ccf8892d8d3f16","8e1b3821683add053aab6c93600a4e5b7337ad3d8434bab7656d72bd1004c9c0","94ba65880aaaad4fe46ff9fc1313053ed165fb4667f01f94fd0e53b9c75a0a71","f70f4db978c00b84320d7f0c52a109befd575e6403b9f78d05fec316eecd547a","3e118030a6221a66632d063c8e39ba16ca9107a1a8dd010b3d5cc87ec0204a5b","5ad0a5d1ee37cfb2ba3a4bfbb9c810c886f873e9771fc4a1650fbc25b0db90d0","3334f1c5dc6fdf8aaa5cff0ab612986ed7feba9756e183d3b94746f22c0abbd0","555a6442f7c5a916e5341e98282f2bd352e7170985bfd1de01d0882301d5a2e4","aa77bf6824c5bfe7fa84fe32601f4ef17fd568c9fb75ed1dafd922de3079dd67","29b91d1a6fb5f5a9c390e891ee49a3150a77ec58f6527dc2ecd7e28ad56abef0","7764d86b730d711f75806183bb801c476041112791ecd5522dec8d27ce0ad154","30d3d9f9bc254eb6bfc8c827b53feae0023a247bc9141fdcd1e9902234b39648","49dd732b74591111793e90f822c8febb6b4e9dba2f427a61f4d9f7035d4c82e9","c77ac7da32c6d4db47aeb73e606322601c1bed1566533de53bf56d1599928d0e"]
Anchored: 2026-10-16
Public log entry: search.sigstore.dev, log index 3272785693 · entry 108e9186e8c5677ad5db…
Expected log hash: 3b93391ec0595ab5c0ff73f2540eb1322f56c3c1302e6789c57b97c74423deaf 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":"v1792118508353","kind":"published-quote","locale":"en","page":"brand:zasta","quote":"the processing was very fast","rating":5,"review_date":"2026-09-17","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=de.zasta.app","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 (42ee8ba4b974…), 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.