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.

“After latest update can't open links in email”

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 3668944551

Proof data

Record hash (SHA-256)

0995294fd3aab174a6f37891aad6a29b8ac6dbe508552cc5e38313e399f9cb8b

Signature (Ed25519, base64)

F5Puh/6P1qsp5nYw5esHXRQiPXBDCNFfKone/WyszJwrodRWgn0i/tlyx/y6fQEnnZYZVeHNdMn2wim6hCU+AA==

Merkle root

d8f145f4dd25b18e2b87daaf2aeaecbfc54faf99bd3bfdd8f74aa4efc5886bf6

Merkle path

["09938c105b1e3b4b8437a09d5db2d5cb1f12c04ff85a20c1756b7e4cc9759f9d","8b12fcf91017fbeefe8cfe75f557081d997b988703022a7347966ac2822191a5","384a2b8239648fb50cba2dfa455e71f660227a28bf70eefe90495bfbe497eac0","6d0445d0ec5b028d62c2713074c9b19b3691e02df2f0937ed68be344694abc11","28fe31c97a6a5a9e2b36330c1de95a2d656e2318d4a1271419afaf18ae2d85ac","89a9344b7dadb40b2bb39ec4e67480ec360eb9d2ee439623178500cdde1d60e6","0b525c87957f9a51c9776de4632b4acda03d46f61a3139e8f0169c15cd410c78","57e93bcb84b65a7666e27d1f91df0cb928fde563c93f4c963eb2c3a8c8ee5f4f","62eb5cc523a1a089c35aef99cf39b36f5dcd1600f06010c6319c9a45cc998f23","1b5e51717df5dbd79e213b899204d445aebc84015ef81819b768505201356e27","201d44a330ce43627228498a1a6d2056de77241b782d03c819087e11ea8adfec","2e900c12d34400e39fc8c3ebb99077c31758e236ed2350484065df834f416d2d","4a105e509823ad7c5361d9c34172b0c0d78481a597dbc352d26fbf6361d15520"]

Anchored

2026-11-03

Public log entry

search.sigstore.dev, log index 3668944551 · entry 108e9186e8c5677a0e24…

Expected log hash

29b4e6eadc957394341c639515bb23b43b99093d34033c988619822df54fe84a 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":"v1793707472796","kind":"published-quote","locale":"en","page":"brand:proton","quote":"After latest update can't open links in email","rating":1,"review_date":"2026-08-12","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=ch.protonmail.android","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 (d8f145f4dd25…), 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.