diff --git a/src/libs/data/proposal.js b/src/libs/data/proposal.js
new file mode 100644
index 00000000..f4044501
--- /dev/null
+++ b/src/libs/data/proposal.js
@@ -0,0 +1,56 @@
+import compareVersions from 'compare-versions'
+import { toDay, formatToken, percent } from './data'
+
+export default class Proposal {
+  constructor(element, total) {
+    this.element = element
+    const yes = Number(element.final_tally_result.yes)
+    const no = Number(element.final_tally_result.no)
+    const abstain = Number(element.final_tally_result.abstain)
+    const veto = Number(element.final_tally_result.no_with_veto)
+
+    this.id = element.id
+    this.status = element.status
+    this.type = element.content.type
+    this.title = element.content.value.title
+    this.description = element.content.value.description
+    this.tally = {
+      yes: percent(yes / total),
+      no: percent(no / total),
+      abstain: percent(abstain / total),
+      veto: percent(veto / total),
+      turnout: percent((yes + no + abstain + veto) / total),
+      total,
+    }
+    this.submit_time = toDay(element.submit_time)
+    this.voting_end_time = toDay(element.voting_end_time)
+    this.voting_start_time = toDay(element.voting_start_time)
+    this.total_deposit = formatToken(element.total_deposit[0])
+  }
+
+  updateTally(newTally) {
+    this.tally = newTally
+  }
+
+  versionFixed(ver) {
+    console.log(ver, compareVersions(ver, '0.4'))
+    if (compareVersions(ver, '0.40') >= 0) {
+      // do nothing
+    } else if (compareVersions(ver, '0.37') >= 0) {
+      switch (this.element.proposal_status) {
+        case 'Passed':
+          this.status = 3
+          break
+        case 'VotingPeriod':
+          this.status = 2
+          break
+        case 'Rejected':
+          this.status = 4
+          break
+        default:
+          this.status = 1
+      }
+      console.log(this)
+    }
+  }
+}