diff --git a/core/core_test.go b/core/core_test.go
index 594e1c1a0..36ddde25b 100644
--- a/core/core_test.go
+++ b/core/core_test.go
@@ -10,13 +10,12 @@ import (
 )
 
 func TestIsEpochBlock(t *testing.T) {
-	block1 := types.NewBlock(blockfactory.NewTestHeader().With().Number(big.NewInt(10)).Header(), nil, nil, nil, nil, nil)
-	block2 := types.NewBlock(blockfactory.NewTestHeader().With().Number(big.NewInt(0)).Header(), nil, nil, nil, nil, nil)
-	block3 := types.NewBlock(blockfactory.NewTestHeader().With().Number(big.NewInt(344064)).Header(), nil, nil, nil, nil, nil)
-	block4 := types.NewBlock(blockfactory.NewTestHeader().With().Number(big.NewInt(77)).Header(), nil, nil, nil, nil, nil)
-	block5 := types.NewBlock(blockfactory.NewTestHeader().With().Number(big.NewInt(78)).Header(), nil, nil, nil, nil, nil)
-	block6 := types.NewBlock(blockfactory.NewTestHeader().With().Number(big.NewInt(188)).Header(), nil, nil, nil, nil, nil)
-	block7 := types.NewBlock(blockfactory.NewTestHeader().With().Number(big.NewInt(189)).Header(), nil, nil, nil, nil, nil)
+	blockNumbered := func(n int64) *types.Block {
+		return types.NewBlock(
+			blockfactory.NewTestHeader().With().Number(big.NewInt(n)).Header(),
+			nil, nil, nil, nil, nil,
+		)
+	}
 	tests := []struct {
 		schedule shardingconfig.Schedule
 		block    *types.Block
@@ -24,37 +23,37 @@ func TestIsEpochBlock(t *testing.T) {
 	}{
 		{
 			shardingconfig.MainnetSchedule,
-			block1,
+			blockNumbered(10),
 			false,
 		},
 		{
 			shardingconfig.MainnetSchedule,
-			block2,
+			blockNumbered(0),
 			true,
 		},
 		{
 			shardingconfig.MainnetSchedule,
-			block3,
+			blockNumbered(344064),
 			true,
 		},
 		{
 			shardingconfig.TestnetSchedule,
-			block4,
+			blockNumbered(74),
 			false,
 		},
 		{
 			shardingconfig.TestnetSchedule,
-			block5,
+			blockNumbered(75),
 			true,
 		},
 		{
 			shardingconfig.TestnetSchedule,
-			block6,
+			blockNumbered(149),
 			false,
 		},
 		{
 			shardingconfig.TestnetSchedule,
-			block7,
+			blockNumbered(150),
 			true,
 		},
 	}
diff --git a/internal/configs/sharding/testnet.go b/internal/configs/sharding/testnet.go
index 1ee650fa1..74f93ece3 100644
--- a/internal/configs/sharding/testnet.go
+++ b/internal/configs/sharding/testnet.go
@@ -15,11 +15,8 @@ var TestnetSchedule testnetSchedule
 type testnetSchedule struct{}
 
 const (
-	testnetV1Epoch = 1
-	testnetV2Epoch = 2
-
-	testnetEpochBlock1 = 78
-	threeOne           = 111
+	// 10 minutes per epoch (at 8s/block)
+	testnetBlocksPerEpoch = 75
 
 	testnetVdfDifficulty = 10000 // This takes about 20s to finish the vdf
 
@@ -38,50 +35,26 @@ const (
 
 func (testnetSchedule) InstanceForEpoch(epoch *big.Int) Instance {
 	switch {
-	case epoch.Cmp(big.NewInt(testnetV2Epoch)) >= 0:
-		return testnetV2
-	case epoch.Cmp(big.NewInt(testnetV1Epoch)) >= 0:
-		return testnetV1
 	default: // genesis
 		return testnetV0
 	}
 }
 
 func (testnetSchedule) BlocksPerEpoch() uint64 {
-	// 8 seconds per block, roughly 86400 blocks, around one day
-	return threeOne
+	return testnetBlocksPerEpoch
 }
 
 func (ts testnetSchedule) CalcEpochNumber(blockNum uint64) *big.Int {
-	blocks := ts.BlocksPerEpoch()
-	switch {
-	case blockNum >= testnetEpochBlock1:
-		return big.NewInt(int64((blockNum-testnetEpochBlock1)/blocks) + 1)
-	default:
-		return big.NewInt(0)
-	}
+	epoch := blockNum % ts.BlocksPerEpoch()
+	return big.NewInt(int64(epoch))
 }
 
 func (ts testnetSchedule) IsLastBlock(blockNum uint64) bool {
-	blocks := ts.BlocksPerEpoch()
-	switch {
-	case blockNum < testnetEpochBlock1-1:
-		return false
-	case blockNum == testnetEpochBlock1-1:
-		return true
-	default:
-		return ((blockNum-testnetEpochBlock1)%blocks == blocks-1)
-	}
+	return (blockNum+1)%ts.BlocksPerEpoch() == 0
 }
 
 func (ts testnetSchedule) EpochLastBlock(epochNum uint64) uint64 {
-	blocks := ts.BlocksPerEpoch()
-	switch {
-	case epochNum == 0:
-		return testnetEpochBlock1 - 1
-	default:
-		return testnetEpochBlock1 - 1 + blocks*epochNum
-	}
+	return ts.BlocksPerEpoch()*(epochNum+1) - 1
 }
 
 func (ts testnetSchedule) VdfDifficulty() int {
@@ -145,8 +118,8 @@ func (ts testnetSchedule) GetShardingStructure(numShard, shardID int) []map[stri
 	return genShardingStructure(numShard, shardID, TestNetHTTPPattern, TestNetWSPattern)
 }
 
-var testnetReshardingEpoch = []*big.Int{big.NewInt(0), big.NewInt(testnetV1Epoch), big.NewInt(testnetV2Epoch)}
+var testnetReshardingEpoch = []*big.Int{
+	big.NewInt(0),
+}
 
-var testnetV0 = MustNewInstance(2, 150, 150, genesis.TNHarmonyAccounts, genesis.TNFoundationalAccounts, testnetReshardingEpoch)
-var testnetV1 = MustNewInstance(2, 160, 150, genesis.TNHarmonyAccounts, genesis.TNFoundationalAccounts, testnetReshardingEpoch)
-var testnetV2 = MustNewInstance(2, 170, 150, genesis.TNHarmonyAccounts, genesis.TNFoundationalAccounts, testnetReshardingEpoch)
+var testnetV0 = MustNewInstance(3, 100, 80, genesis.TNHarmonyAccounts, genesis.TNFoundationalAccounts, testnetReshardingEpoch)
diff --git a/internal/hmyapi/blockchain.go b/internal/hmyapi/blockchain.go
index 2a25fda0e..a46fe37c6 100644
--- a/internal/hmyapi/blockchain.go
+++ b/internal/hmyapi/blockchain.go
@@ -271,7 +271,7 @@ func (s *PublicBlockChainAPI) GetValidatorInformation(ctx context.Context, addre
 		"address":                 validator.Address.String(),
 		"stake":                   hexutil.Uint64(validator.Stake.Uint64()),
 		"name":                    validator.Description.Name,
-		"validatingPublicKey":     validator.ValidatingPubKey.SerializeToHexStr(),
+		"validatingPublicKey":     validator.SlotPubKeys,
 		"unbondingHeight":         hexutil.Uint64(validator.UnbondingHeight.Uint64()),
 		"minSelfDelegation":       hexutil.Uint64(validator.MinSelfDelegation.Uint64()),
 		"active":                  validator.Active,
@@ -311,7 +311,6 @@ func (s *PublicBlockChainAPI) GetDelegatorsInformation(ctx context.Context, addr
 	for _, delegator := range delegators {
 		fields := map[string]interface{}{
 			"delegator": delegator.DelegatorAddress.String(),
-			"validator": delegator.ValidatorAddress.String(),
 			"amount":    hexutil.Uint64(delegator.Amount.Uint64()),
 		}
 		delegatorsFields = append(delegatorsFields, fields)
diff --git a/internal/params/config.go b/internal/params/config.go
index ef747050b..9cc33d551 100644
--- a/internal/params/config.go
+++ b/internal/params/config.go
@@ -34,9 +34,9 @@ var (
 	// TestnetChainConfig contains the chain parameters to run a node on the harmony test network.
 	TestnetChainConfig = &ChainConfig{
 		ChainID:        TestnetChainID,
-		CrossTxEpoch:   big.NewInt(1),
-		CrossLinkEpoch: big.NewInt(2),
-		StakingEpoch:   big.NewInt(3),
+		CrossTxEpoch:   big.NewInt(0),
+		CrossLinkEpoch: EpochTBD,
+		StakingEpoch:   EpochTBD,
 		EIP155Epoch:    big.NewInt(0),
 		S3Epoch:        big.NewInt(0),
 	}