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.

“Excellent ergonomics and privacy guaranteed by Proton.”

Checks (re-run on this request)

Proof data

Record hash (SHA-256)
12cc470b656fb3f54aae397a53fec5bba2f4d40dd146ce649989fbdffc08e71d
Signature (Ed25519, base64)
VqOCBmPf49MEqBIaKbetpOR1UOr9GdapNwOfR1VhUkRf64k0wNIk854CYU9HlLEo7f0tdPk5ZuRQKHVaa1MvCQ==
Merkle root
7c31845ea005068c52611e47ff2778bff3790bf9c71538767447b45fe79322da
Merkle path
["12cb7008fdb8521ecd9505301e24fc489a4c513e0b3adfd82f7271bb0e1b5320","1f72802ece6eac4824afa853f11a1c1555173bf71b611bdbce8f1c563ad2f4a3","3b59526df92b86cc84da5c842b09972c8fe4183054b02d849df6ac0753f305d1","6a012aa6bbd375f49f52e9d755326e840088efbbab47bd93036c92ca220f548b","e0240cdb042c2cb8e891d588c1c031ff85dc7398c2d4b07ec6e7b3d9006be121","af2170ecd71a8e74af80f273858523a603d48b0624e3666c96878fa2caaf25d4","333d8b40f13af417c2c3e6548822fb42a2e835804b2fd3a6022fadc554c6da01","bd8750a9cb94a8b39b3eeefcb21d99a28ca0332919f136cf7723fed0b64d9a88","5cca99d4a86c71d8ea95e5ca768918a4df68b28612f7ee3c1944dc1b12d216b2","2e4754feef4a866ba00be7a92706eb2a1e3ae7362167121b02aca74cdcc02458","4f9bf5afaa65f61da2f5794dd0ddec8019e03ac31d1a2f9249cdc4d69925b914","6ceae28d9d9991c7f0978d9583675f513d5a8b980f19419645347989922bda23","de406c010b9d09d7f74176c9d423f8d72b745ac400e2c0cfcdb434d0af8fcade","e49018058753e3439518d8ba4c827c0b343729e39fb424281e6808f61fcc629a","4f862010adf0fcb97b6b2b8112f782a485805bae9f9783a7b39739616b9b62e0"]
Anchored
2026-08-31
Public log entry
search.sigstore.dev, log index 2657817117 · entry 108e9186e8c5677ad3ca…
Expected log hash
0666b5f97f085fdfc4cedfba58ac7e76857cdc9faa5a1032ef597cdb93024c5a 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":"v1788148095319","kind":"published-quote","locale":"en","page":"product:proton/proton-mail/en","quote":"Excellent ergonomics and privacy guaranteed by Proton.","rating":4,"review_date":"2026-08-12","source":"Google Play","source_url":"https://play.google.com/store/apps/details?id=ch.protonmail.android","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 (7c31845ea005…), 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.