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.

“Fast and easy, do it with Zasta.”
Google Play · 5/5 · 2026-09-20

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 3096409536

Proof data

Record hash (SHA-256): ec0bc2362fd733fffcf820af4b29076eba0288b5b42d21c2ba34292adba79a86
Signature (Ed25519, base64): JZj79DLzaGGpLaWyx5OTQSlYF2tBvBRt5GZYeHABHi9TlvmWt5ibkZVR6Y9U4x4IRRutKj6er44J5S5iJerIDQ==
Merkle root: a249ea91ed6d494b0d321c9d53d89a7bb9616ff6f558eb56f9ac9b7e3eba088a
Merkle path: ["ec0f4255de8cce14742bd07e3b172374d7548b1b175e6ad663602e5811a359e4","9e30e6cbeb325b3d11b5f7266dc69de3e2f90525b40806689961bd0e9601a3b7","e4fb65159a4a7a3cb967ac9eb57bb7534e41e1b669937bf83a5fca03496204c9","405606710aa573f12e1112b4638cce0fd90c3ffb19805f1f3f17a9c1ee92c086","616b90e6094bd32092a02d8efbedcde6b522b1188c4bccd46e3a6703d718391b","675728bba8050f35404bb6164555b6be13fb751ca12954b93d64b16d5d15c03f","2ae39978e5fde0b2b6c378f02ee4097a83d565233aae25993ee48d077aa3830c","dbbfc8d83bd605ad9e1c8f2d967c0c7bb085c703d0c05d7c6d146d5dda636037","92de6ee6909ddadb8931f6fb45724ff8dc5f9758460c71f6bdb4d90915542aa8","1f178e5b9ff83043604f8e0ee9607d165371fdc2c4fc500407cdd93ce728db2f","617594f3e1469dc63721d3ed60156dceba9649e2ce4d3bb709e147c1aff4f824","1d1a7c3a35dee564199b907cc9288b2b4820fff40e67f618c9f9564f9586157d","944711ffed00013c87dbf9f03457a180cf7a8f4385f84a5e400849038727947a","bef4d50dd8a051c8f02faf8f705583e35bb6e87240e1a1d93f46dbcd44f32257","c7ac6cb920cf1e460ae014f9f7e09e7fc4988adc232ef0b46ecc1420eaa09987"]
Anchored: 2026-10-05
Public log entry: search.sigstore.dev, log index 3096409536 · entry 108e9186e8c5677ab1e1…
Expected log hash: f1740c5ce7036e4f36513fb4ccb4f6bf95b5dc879a1fb8a1f0778ef42370576f 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":"v1791238940340","kind":"published-quote","locale":"en","page":"brand:zasta","quote":"Fast and easy, do it with Zasta.","rating":5,"review_date":"2026-09-20","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 (a249ea91ed6d…), 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.