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 should mention in your commercials and other media campaigns that Zasta keeps about 1/3 of the payout for itself”

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)

c70b39ddb22cd0b8ded54a91a8a913ce6c92d12867704646d1956f4dd6ad8a7b

Signature (Ed25519, base64)

MAaCMn7nLkhLhon+QtlPYYgWUuJ7QWYVBQIkdjX9nKvNL+kU0V2Hi/QUgIWeS/OFEtvevqfBWtR5bwqzPgJQAw==

Merkle root

5397210619679ac63434abd334c13f5aaccbd1dd184ad9d8cac5ebeceaa346bd

Merkle path

["c70e831024d7e3e9f0054b68a02d15d374e74834a668fd80147271433f84b5e0","df36e147d0d9f5a0da45a72aa3f8f075d7926ea005e3985c76894275c6511b65","3f11a849ccaaaebfb17b887a6fe465107c4d72a4a01db88e1c3e04854e9cba69","8e7c4f7c201da49c2c6dd14585de10ca8c747d059d121e46f4e61ac96378868a","6e3b2a4745ae705729e2725d3eaabc35a68b8fbaf841ae4f4232612048c7cd90","b23930be77d3248a4cbeb91ddee2ecf804c8ef84b6ea9f53e7101e10d5fcb46d","5815aa265595e3ce68b115cf9a832c8076b912ac096772bf24f5d2fa0ee74084","2df67c50df3cafb0f360dcaf77707458faac4bda5f51cdaff4d17e829192506c","34abf8b1463667874485cb2b8672c62a9edd03fcac04e46b29d8811ed6458d9e","0a715338c382853c361532cad9de3a3e6b592ae3af6e66fcdb7027d97860e1fb","9d52e13a7864d7529cca85a4b7c15a5f7242a077b239eeaf0146f44c46bf9c65","0a9a33c75948420bc9c46c8097da1b06f4fe152fd5716276fa9112799a085a6f","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/communication/en","quote":"you should mention in your commercials and other media campaigns that Zasta keeps about 1/3 of the payout for itself","rating":4,"review_date":"2026-07-23","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=de.zasta.app","v":1}

Verify in the public log

1. Open the Rekor entry (pre-filled with this proof's log index).
2. 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.
3. Decode spec.signature.publicKey.content from base64: it must equal Citatio's published key at /.well-known/citatio-signing.json.
4. The entry's integratedTime is the independent timestamp: the root, and with it this quote, existed no later than that moment.
5. 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.