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.

“You are kept informed about every next step, so nothing can go wrong.”
Google Play · 5/5 · 2026-08-17

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 3199295725

Proof data

Record hash (SHA-256): 57daca85959d73b8fb866abb107654a42c90de53c8e23c589fea34663f52ffca
Signature (Ed25519, base64): ygYrqaUlMu/X+uWOELtDBnLgxTFpuHYRvNQPrAThQ8BQXhn2wcRYsfkEBn+T2z5dYY6RydbTcthOQGGVOGphDA==
Merkle root: cb5472fa7b7f10b7453a4f782a38c5dbb3d782ac291369ed3830c2ab783a230e
Merkle path: ["57d3284ad911d21bb2193e9a88513b6bbf3b4bc3de69e45633ef4a886cbca4b2","df3d0d07b966ce3a20bff9c17034c3cddf8ebc0cd2f8097a02764de71eebd86d","7ec5218d53371f4f38dcb53e30d295547f079be7547daa7d24a1a33ae62b155a","54d85c6778bb9cb3c6410f259b8a230b5ce35151627e92278f24d6c3290acd50","403311b921c27b495d1ee33bc26224ad46383c32cf81b5d43e8b8a3380e41153","8bfdde0147ff16b94450ec93f1e95ddae4350ef37fdc3208b1a866911f7b5e12","1e162621cbdb2d067344c6178329e126217faed8986ce06fdfb5f61bc9247e65","268dc361518c3055934ecfcb8ab663c769e0a8c733222dc95562ccb406f1dfa6","1625c7dbb4c975133fc96f700003dcc456f5a062c86839ffe899ba3d62774f11","3dd5c052099d08f3a69fa4b682303f05be954a602fc8a682c2408ffed7c0c2b2","d22e2947e2437bd17cee6fbebb3fef4564e517fa76b3667d5f7449e2f7cf7733","985e8226a3e0c2f6e4183d2b437a359f1bd9336267c62cdcc26c3031df5f08e9","d5c54f6be615dd1c8e7a065afc12e543325363bfb66a63065a4aa1d52a1dc406","6ab0f07aea38f551fb6ed4456f21bf7c468ab54859dff87b6772a51601755f64"]
Anchored: 2026-10-11
Public log entry: search.sigstore.dev, log index 3199295725 · entry 108e9186e8c5677a3fc5…
Expected log hash: 59b8cd8284c909c35d85f443b6a086d482f8b667c56ec942d663937a75e25638 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":"v1791689736846","kind":"published-quote","locale":"en","page":"theme:zasta/communication/en","quote":"You are kept informed about every next step, so nothing can go wrong.","rating":5,"review_date":"2026-08-17","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 (cb5472fa7b7f…), 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.