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 creates a bad user experience.”

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)

d55ed88bf253e08582d4167d4f08ee7679c18e8ab4a7174e9ce151dc68b6e5ec

Signature (Ed25519, base64)

OM9nJaiLTxtC/f1LCYXFagMvFw3ys50FALU/gzUrOfzUXlfc0oYnDlvdImbE31S37S6vS+sW1O5q8zimzYgvDA==

Merkle root

97eb1062a862b99998bef0a84476eb3c3812bb77c2cb927f4fd2933b59da9e3d

Merkle path

["d564b052610e762e244c7f181b2803d8b2adccf2ca8172371c8031951e5a32e6","c988f66e755a5272598978b4dbf8b41fdbd5533bb88a489a496fe0b7be38448b","497bf92567dfe618884d9cfb7fd60466f3473d45fe88e65d187954541dd72a15","ccc5df5e3318d6fa76d83c16a5c31f39efaf943d05f2dfbd539d5ff32d695eb7","9bf5d9b2ec415b5b3290727b14b271d2e0a01b72763857905e7d5fffa18dc795","cc170e1160bbb92f7bddcae030fc7640844a938edc5f16aa513ade87000b16fa","00b00f9547ef3c80ef60f2eaab9813eef4d85259ea6507f724ac5b41cb260547","32dfa3b3f3a53fffed9962a74e05ff1f2bf7a4bd75bbf485e25e1ec0d9e11d05","da0be924b0c9adfe6b299fdb3d08e353dcb933db650654d521217be2c21ec510","d0733a94549ad1fa7b1ad05e67e0265e952bcc5dee973bda31ac76bec60d164b","aa7b928bd16720157d334bc98b7e5ebd98d6cf216ff9136e6ccd291dc6661148","c0cc50f924fcd6f909769461f841119392c2e50ee0690447644c3ed97414e04f","6a087565eaa0768d4c576fd78f88585a902d61259a245be7f47bc24b1ead4c18","fb01c9b29e184d558c43a512ba05af475ec20eceeace4dde365559da92299892","46bcfbc656e0e2a380a8a94cdc0be3d8b4c668e5f9e54a10ba396a45b371339b"]

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/quality/en","quote":"the app creates a bad user experience.","rating":1,"review_date":"2026-08-31","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.