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.

“That was certainly not the case”

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)

b0ea6d9ced9bc256c596584b3709b1e21c1826387bb256fff0bc87f814918e2b

Signature (Ed25519, base64)

CyeNOYZxmDhr1745c5xsPElIJ+k1fFCpqDlxPuepvISv5rkEd/flBEtzlpx2CI02i5S21vuPl0l/Jx0LC05bBw==

Merkle root

5397210619679ac63434abd334c13f5aaccbd1dd184ad9d8cac5ebeceaa346bd

Merkle path

["b0e90b0f532a535a1fdeca6ffc025a956513a9fafcfe39b7ea45416da81d0a5b","61b7b3d118ba7ee4d496dbd167bf7ce1d87f78df0bb6485491038a2c17297c75","7dcd8aea8e124465193102200045cf2de7dbc3d73576e67bdf0c477438470948","3eb52fe3b71f838a7644b62cb773cf3d9cb20ee64a61d61fc93c9d3cb47fdfdf","3e8fa8b0d0d3f00ba1608b902787884d44c58610e26d18ad45380b8bfc735a4d","3af8d2c06d7a2a22e2bf012fb7955f6b51e5f7cb03d0687329a1a4c79c9c1f32","025a6c0520cbec3d40c286b74beac0905963495c3ff1ab8530e5deac97c88deb","5efb9e860ecb1f19bd4235756ebc5b77f47a22aac9701ec876458cf9831a9006","9a5e6617602d966a0bb71d209e3365c8afc2d0dab7fcc4bd213193e73237108a","13c2dd2b26910fbde2dc1689694aa56374751e38e8e3b9f8a3d246e7d5aa5af3","ae4e732c2e0e68bbe6e2a11a2a1aa28e6ef9054a261cdb910d41af2394f44c99","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/communication/en","quote":"That was certainly not the case","rating":3,"review_date":"2026-08-30","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.