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.

“the app is not recognized as a calendar app”

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 2789279696

Proof data

Record hash (SHA-256)

4a9969b6d7711474d490fb9d482bd71c1ef10617c144ee5458cfb1510751d31d

Signature (Ed25519, base64)

IDDtYBm0Xik2Z8ILjLaqBIyIlEbSWjblhsxK4WP/qfFJJSAjafaqOtzgVhdk8zyZkG7jZndDMp2xIvOsC3JFCg==

Merkle root

97eb1062a862b99998bef0a84476eb3c3812bb77c2cb927f4fd2933b59da9e3d

Merkle path

["4a985b8256a9c6548b1dc17c0cc519b170e69e76a1dc707283679d67ee2d8365","e5194d3795328458269738f4a346fcf14ec273eb469eec3b63c320370852c22d","e248c1d34b1298eee1c4fdbba1417e489a61d6ff09de7b2d6c41945e2e0e9be9","7c8aa5ab043572b555525a198e82041bfcfeb42897e4d3b24297e78e6ef49006","0b218ac56f5d9bf44a01908418a1a450bca260048d8f1cd457d623c1593682bd","ecbec07437ccbf69075c395287d9c9ee620545a7145e48ba7b72aa5468016d62","873512f933fa46465d03df46f7692cb0bf4d966dc9fe28611fc3299c34d408e5","7b1bac36a9ec36049348e95d0f373d353de0976190dd74b15f4457d054b9b510","69f2a77266ba35e6d322c8bdb278b01ab26aa8ea394f6e82c8fffc2cbe64d112","6dbdbc3fb88afe6bf636e2695e76bee0a6b1e4d9e579d907d1cf1438f03fdc78","d3a7bd3c71331cdbbc263d45811b1aa92d779199c11eb4bbb8cac215c32a530d","aa7c727744c972cb66fba1d64eea69090f0779e70821de9cee298fb3fcfb9463","b2cde2091952330dc6d7773f9467df58d2e8463851174cad44d4f743c8f8617f","a9559f2ca8536f2c18bf059f3f0099d62235a93ac35dc17b09967d392b72be7f","01242865574478f13dcf9d888236d7a907264abdb87f360db7db06de0945075a"]

Anchored

2026-09-11

Public log entry

search.sigstore.dev, log index 2789279696 · entry 108e9186e8c5677a3885…

Expected log hash

05c7009ecf7ce5cf315c252c2a1dd135e64989a02cacdaaa3c5a87412a2e921c 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":"v1789017464005","kind":"published-quote","locale":"en","page":"theme:fastmail/fit/en","quote":"the app is not recognized as a calendar app","rating":4,"review_date":"2025-12-01","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=com.fastmail.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 (97eb1062a862…), 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.