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.

“Mandatory registration for an email client..”

Checks (re-run on this request)

Proof data

Record hash (SHA-256)
1167beb6f67efeeefce5d5b3c6a4a75a3853912f9bce42d4d600102a47e366d0
Signature (Ed25519, base64)
TCZIimqbS/YlUKMRDmNZBkQdqPFboHKKcplATJcgqBER1Lz7oqVj+JS2Q6LG5U17phuQwZkjB+osOZHZhHSJDQ==
Merkle root
6f12cc2c270315565a1d1eee1d2701d6026d319131a58b69c44d9258f5acf4b5
Merkle path
["1167bdfb89123e07892ec2425021d2a8f568259bc7397daa05cec308c7a4977b","d0c057aed168369effba03dd4c8cb7f23a5ce47ad265441b1fb017378f384452","b128b7af5a3589bf69e965bac4b71a60d1495f1111b45d6746e31ec8089903d3","93430e07930afceae6ab5ff0183b776fab7a427bba7fce6a1e52003994fc8eba","23bbc8fae0af29ec10ef8a5c3f795f58ee3864351860433ad05aef6cb81f74ca","0c50eed53ad5b6a6f9c2890ed670a2b285caab56b8a60dc81ee2175ee4e5f97b","a8ef3f3f62a8ef888a597e554e59e8d8575960522991d8bd81529487256351da","c873ce77fa32c07093339a014a93f92d4f9edd65e1882f264c86f2138450b825","4a2e34a5323840646ab1f39f27d16768895b87350c2c5e2148c6d5ae67601346","7cc46c5f442150d192924c271e2b6c7cca952a660419d8979ab19953d61c09ac","7ad6a8b64e93197145d809713c5bdb1a8b8351c7c1e4d854c601597ee5bf788a","e1810bb1a57297789aec183f22fa96342544d613c4438ea88ad3682921c3ac23","4cfb0ba358e827cc67056ca0e96e00d8845c97a5122b651824f093c98eb52251","30965059f5ea715e09215550378e817887188467dda82ad254cbb53806a794e9","ca4eccc8ed1a12a080d60e4aea7350c5e9838de027f4bd52c0b417f8e200584b"]
Anchored
2026-08-24
Public log entry
search.sigstore.dev, log index 2579589276 · entry 108e9186e8c5677abc30…
Expected log hash
35976bb6188e24bef6cdf335caffa2c8f3371772e6cecd19a637303b7339aafd 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":"v1787541175661","kind":"published-quote","locale":"en","page":"product:proton/proton-mail/en","quote":"Mandatory registration for an email client..","rating":1,"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 (6f12cc2c2703…), 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.