Add confirmed-in component

app/components/confirmed-in/component.js

@@ -0,0 +1,23 @@
+import Component from '@glimmer/component';
+import { tracked } from '@glimmer/tracking';
+import { inject as service } from '@ember/service';
+
+export default class ConfirmedInComponent extends Component {
+  @service kredits;
+
+  @tracked confirmedAtBlock = null;
+
+  constructor(confirmedAtBlock) {
+    super(...arguments);
+    this.confirmedAtBlock = confirmedAtBlock;
+  }
+
+  get confirmedInBlocks () {
+    return this.confirmedAtBlock - this.kredits.currentBlock;
+  }
+
+  get confirmedInSeconds () {
+    // A new block is mined every 30 seconds on average
+    return this.confirmedInBlocks * 30;
+  }
+}