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.
“My absolute favorite among email providers!”
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)
0de5590bd578e7bb06753d0cb315e68146f1fd4ff3892d029670cdc5d97ce6f7- Signature (Ed25519, base64)
zyeToSQlZgGZ1JThLfllg/nB+7LW2GBjnN738NzCfKU2ULQjLveCdmHEXWtPpwuCPZcyqJu1DsTpMEyhA/W8AQ==- Merkle root
97eb1062a862b99998bef0a84476eb3c3812bb77c2cb927f4fd2933b59da9e3d- Merkle path
["0de115479f2be927abebb3e88c88f813708744495afa2524004cc7b083ea98e3","9c8ab17475461daa2ddd1d85b9fd70abc601af9e2c0605481061e5c50c5738df","d6c001f84a00107d89d6e3877240effa973ceb4b2d93673ab5cc2e3a298b5046","b16f0edf6dfe304d0e58fd0a9740a7df67efe083c1e7a1db52857b797ddfaeb8","81628325bc400addf51458d3d8d0f450351c9b9063126952da9bc565cd10d622","8c89a5342a6b5af89ded468cfa0eba192af2ab85a57ef5aa2b07d08f72126179","1146ab51e4e43f500662c3a1692ccad9cc922fd509101ecc52092367b9c019de","fc29fd6277500526da739b010caf2844a7aa11500f039c37fcd7d95760910d2f","59201f7921c8a5f5d75c75579c53386137c7588b84d4ae0202efdbab4d2aadad","929021c2cceb1bc18530741bdc9b0bc7642b8907f17a6184502e6a515819f766","c88b3d8b7a19b4ad39809cf40205783f933d9a74fff3512cfce9fe04f3d1b7d2","6c14202f6f4d89338c781140a2504c6d469b19d300474270ba84f87831aa8464","5b47260d99d2c4ad6e0d963995c990c8506dbf10eb0b146a116c3fc6ba348071","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:tuta/quality/en","quote":"My absolute favorite among email providers!","rating":5,"review_date":"2026-09-03","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=de.tutao.calendar","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.