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.

“Got a refund for the last 4 years.”
Google Play · 5/5 · 2026-09-01

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 2948162176

Proof data

Record hash (SHA-256): b6847a86d2c534148698b8031f087b189e506bbeb7ba17f5bfc6c56e80a229e1
Signature (Ed25519, base64): w6Otn58SL3cNEveyaNEVxI86a0PXIWRALzWclLW9plY1nAi5xgOnDc5TqqYPr3jf8K8tpp7f/jB7Jw6dipNTCQ==
Merkle root: 5397210619679ac63434abd334c13f5aaccbd1dd184ad9d8cac5ebeceaa346bd
Merkle path: ["b68417cf6bd731a14f7c7aed07fd49d4e5849b62aab5ec0957951e08cdcbf1bc","036d7b1ae9d4ccf5afc4bb0d869d8ca723039f42e74e87b6f24fbae23a1c1a77","a31d5c98cb07203a9960e52b87596a00a0762c277ed7bbadaa12a49c2e445a42","1ed5ab4023c8995875536871c5d1f8ea0bccfd01c3509703974aa69fa064fdc0","fd59546e61d085db3a9d055a97fb97d09ec8a0fb4eab8dbe45ed1266525ec45b","632ddc077e4f8c7fce02fa7d145a80706d1754a1529850838f56251617f5a55e","8f65e586acbe4dab667d9b28ba4f53065e9c7c55fafa711eb969811cb4aaa6f1","cce067c2305000a554b2271ce2999b8a2ce47d0e8e86dda1a034e87200d51845","4a497ddd64c2d541e5a8991bd47ad095cea507fed163c19edad6b08fd94f4a9e","e7f9e9023637a88be936098e64679d1bae9e9db5c513ea163653a957402baa9f","c919197c524c32c926c31f4b65a12463ada5b42732b6cfb01cf4401a3ba244dd","55a9b55eff9a801fcfc3d558b16967943372bf3872c32c7995af16402ab803e7","108f3d171e4ec3a22d208fe56e34b1a576bfa9e9f8a046f3c09e78ff42b08593","468adf75cd56eeaa89e39f50b974b405db9921529d680bbe88ff0d1caae6f316","77ebbc5a767f49a9f64068a716a8c843de0ea8d44adc624726bf46e2e415a41e"]
Anchored: 2026-09-25
Public log entry: search.sigstore.dev, log index 2948162176 · entry 108e9186e8c5677a61d4…
Expected log hash: 5ff8f25b7934b5d72d363d6805344624efba4d637f2c851f11783b259b9d81be 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":"v1790226990092","kind":"published-quote","locale":"en","page":"theme:zasta/returns/en","quote":"Got a refund for the last 4 years.","rating":5,"review_date":"2026-09-01","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 (539721061967…), 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.