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.
“Love the service.”
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)
374de5c53b36b08beb939f967486261b528577a422b8657da0b4d0588d28591d- Signature (Ed25519, base64)
aMdtSnMOKf412zyc1X3FvOqjTW2I+H8vGlWqyO/ucvrGm52yT1EVVnbFE/bxoMvtdoRfjnJjseu4KCcT5cySCg==- Merkle root
97eb1062a862b99998bef0a84476eb3c3812bb77c2cb927f4fd2933b59da9e3d- Merkle path
["374beac47441b68a118e8f74b8ce6c659774f6ff1480773c5dbb64201aab5472","6820ada3b70c578c4baeeb50b17f374a6dd1dd53b9c8b04ef22eb3eddb9f4c2e","3da04d0079bc92845019d114668bf1f928f86656d408697662d8492d88449661","fe3bb204a6f1bc7bb49536187f763c2f46402d2300d1247fac3421e887c9ab66","03cddc6dfc88856050c4b11004e6cf6c59fae228ad34fde9c38289d9834b2569","ac397e195ffbde9c7833c117df3113b84814e533255ca1d89aee00eefbb09233","b34146709cf14271437b5d21ebb102a5ecf574e4a0e6da60b76a27412449ded8","5b456b4a13966e319f94e8bff2d907120d95d28cd16df41fc3095526b54a89e6","0a1f552d886915d7413b2c965b1e9f165e85e66b2b1c4f8b874dc3db00903cb8","f2f432935dd4b8a6272b5e803791067e1d257ee5b9f2a646126ee4b6039dfbf6","4ad681b2b161baeeaac06e025dd3e2569324b50388a8ccfbe6ef45b197a8542e","c3f635ba717eeeb5ba2ef9ddb3d4150c23b49c53fc05a76fef371e9ad8330b6f","b2cde2091952330dc6d7773f9467df58d2e8463851174cad44d4f743c8f8617f","a9559f2ca8536f2c18bf059f3f0099d62235a93ac35dc17b09967d392b72be7f","01242865574478f13dcf9d888236d7a907264abdb87f360db7db06de0945075a"]- Anchored
- 2026-09-11
- Public log entry
-
search.sigstore.dev, log index 2789279696 · entry
108e9186e8c5677a3885… - Expected log hash
-
05c7009ecf7ce5cf315c252c2a1dd135e64989a02cacdaaa3c5a87412a2e921cThe log entry'sspec.data.hash.valuemust 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/communication/en","quote":"Love the service.","rating":2,"review_date":"2025-10-01","source":"Apple App Store","source_url":"https://apps.apple.com/gb/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.valuewith 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.contentfrom base64: it must equal Citatio's published key at /.well-known/citatio-signing.json. -
The entry's
integratedTimeis 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.