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 can finally access your emails, contacts, and calendar offline”
Apple App Store · 5/5 · 2025-09-20

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): 3fc18ab4aa324c70263f0fdb1007f6d251da6d76779b237acc865f4a6ff816c7
Signature (Ed25519, base64): Yt796H0jelP5YFHVecZ3slL8xH2kqeBELFBsDhXbLomqq+jEIJQPs/Mig/zdoCfe3GXCT+oRAJ+Z5XiKs0T6DA==
Merkle root: 97eb1062a862b99998bef0a84476eb3c3812bb77c2cb927f4fd2933b59da9e3d
Merkle path: ["3fc4d8aded1c33c56b919d9319032e5317dff01e9c1c143cea66a00559402dc3","cc1e000d05b6180c20f6e675dbd8cb5f376d19377dc5f3db3448cf31d58805b8","f0b152c76bf5fd8fbfb45ca51134b6f9f6cf9b62598cfa54446404f1df2dcd6c","8ebf7b0585b13a4cb6f95e1cd0bdd08eeee139c3a9c0c6437640e22616873ad5","1767fd9139484c8d575628aaaaa9936f0552ffce0d3d684d9f294cacb9a4f762","afa8aa1df0e48f2b61825dbd2eee5feff84bd847bb27b987ae2071c3c576a90b","26e775e151d040c5a92deb8d49a68fbfe266d114ebd2c7c990537dab96e2f421","2dd5e5e3f775d034ccade3c1f2803638a3bbe3cf7b047ed62950e8dfb2174070","805e7149c100931ea210c1cbabaa2c369abcf6328085d6db713e1eadbf490fc3","a418eac75d9ac6ce8ff34a378ae859cc44a69b88a1b7f561a08daf9ffd1b518f","4751a18a0ef2d274921212069f9f2b5290e43a95a5cae6a6ab4386457522e968","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/delivery/en","quote":"you can finally access your emails, contacts, and calendar offline","rating":5,"review_date":"2025-09-20","source":"Apple App Store","source_url":"https://apps.apple.com/fr/app/id931370077?see-all=reviews","v":1}

Verify in the public log

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