diff --git a/rpc/context.go b/rpc/context.go
index 4f0a538..ee23df0 100644
--- a/rpc/context.go
+++ b/rpc/context.go
@@ -48,13 +48,24 @@ func (c *Client) extractContext(cycle int, blockID BlockID) (*resty.Response, st
 	if cycle != 0 {
 		resp, snapshot, err := c.Cycle(cycle)
 		if err != nil {
-			return resp, "", errors.Wrapf(err, "failed to get extract block ID for cycle '%d'", cycle)
+			return resp, "", errors.Wrapf(err, "failed to extract block ID for cycle '%d'", cycle)
 		}
 
 		return resp, snapshot.BlockHash, nil
 	}
 
-	return nil, blockID.ID(), nil
+	var hash string
+	if _, ok := blockID.(*BlockIDHash); !ok {
+		resp, blk, err := c.Block(blockID)
+		if err != nil {
+			return resp, "", errors.Wrapf(err, "failed to extract block hash for blockID '%s'", blockID.ID())
+		}
+		hash = blk.Hash
+	} else {
+		hash = blockID.ID()
+	}
+
+	return nil, hash, nil
 }
 
 /*
diff --git a/rpc/fa12_test.go b/rpc/fa12_test.go
index b61d2e4..83e8559 100644
--- a/rpc/fa12_test.go
+++ b/rpc/fa12_test.go
@@ -1,10 +1,8 @@
 package rpc_test
 
 import (
-	"fmt"
 	"net/http"
 	"net/http/httptest"
-	"strings"
 	"testing"
 
 	"github.com/goat-systems/go-tezos/v4/rpc"
@@ -513,11 +511,21 @@ func Test_GetFA12Allowance(t *testing.T) {
 }
 
 func Test_Temp(t *testing.T) {
-	str := strings.ReplaceAll(
-		"{\"contents\":[{\"kind\":\"transaction\",\"source\":\"tz1SUgyRB8T5jXgXAwS33pgRHAKrafyg87Yc\",\"fee\":\"0\",\"counter\":\"5010\",\"gas_limit\":\"1040000\",\"storage_limit\":\"60000\",\"amount\":\"0\",\"destination\":\"KT1CPuTzwC7h7uLXd5WQmpMFso1HxrLBUtpE\",\"parameters\":{\"entrypoint\":\"default\",\"value\":[{\"prim\":\"PUSH\",\"args\":[{\"prim\":\"mutez\"},{\"int\":\"0\"}]},{\"prim\":\"NONE\",\"args\":[{\"prim\":\"key_hash\"}]},{\"prim\":\"CREATE_CONTRACT\",\"args\":[[{\"prim\":\"parameter\",\"args\":[{\"prim\":\"nat\"}]},{\"prim\":\"storage\",\"args\":[{\"prim\":\"unit\"}]},{\"prim\":\"code\",\"args\":[[{\"prim\":\"FAILWITH\"}]]}]]},{\"prim\":\"DIP\",\"args\":[[{\"prim\":\"DIP\",\"args\":[[{\"prim\":\"LAMBDA\",\"args\":[{\"prim\":\"pair\",\"args\":[{\"prim\":\"address\"},{\"prim\":\"unit\"}]},{\"prim\":\"pair\",\"args\":[{\"prim\":\"list\",\"args\":[{\"prim\":\"operation\"}]},{\"prim\":\"unit\"}]},[{\"prim\":\"CAR\"},{\"prim\":\"CONTRACT\",\"args\":[{\"prim\":\"nat\"}]},{\"prim\":\"IF_NONE\",\"args\":[[{\"prim\":\"PUSH\",\"args\":[{\"prim\":\"string\"},{\"string\":\"a\"}]},{\"prim\":\"FAILWITH\"}],[]]},{\"prim\":\"PUSH\",\"args\":[{\"prim\":\"unit\"},{\"prim\":\"Unit\"}]},{\"prim\":\"PAIR\"},{\"prim\":\"DIP\",\"args\":[[{\"prim\":\"PUSH\",\"args\":[{\"prim\":\"address\"},{\"string\":\"KT1DrJV8vhkdLEj76h1H9Q4irZDqAkMPo1Qf\"}]},{\"prim\":\"CONTRACT\",\"args\":[{\"prim\":\"pair\",\"args\":[{\"prim\":\"unit\"},{\"prim\":\"contract\",\"args\":[{\"prim\":\"nat\"}]}]}],\"annots\":[\"%getTotalSupply\"]},{\"prim\":\"IF_NONE\",\"args\":[[{\"prim\":\"PUSH\",\"args\":[{\"prim\":\"string\"},{\"string\":\"b\"}]},{\"prim\":\"FAILWITH\"}],[]]},{\"prim\":\"PUSH\",\"args\":[{\"prim\":\"mutez\"},{\"int\":\"0\"}]}]]},{\"prim\":\"TRANSFER_TOKENS\"},{\"prim\":\"DIP\",\"args\":[[{\"prim\":\"NIL\",\"args\":[{\"prim\":\"operation\"}]}]]},{\"prim\":\"CONS\"},{\"prim\":\"DIP\",\"args\":[[{\"prim\":\"UNIT\"}]]},{\"prim\":\"PAIR\"}]]}]]},{\"prim\":\"APPLY\"},{\"prim\":\"DIP\",\"args\":[[{\"prim\":\"PUSH\",\"args\":[{\"prim\":\"address\"},{\"string\":\"KT1CPuTzwC7h7uLXd5WQmpMFso1HxrLBUtpE\"}]},{\"prim\":\"CONTRACT\",\"args\":[{\"prim\":\"lambda\",\"args\":[{\"prim\":\"unit\"},{\"prim\":\"pair\",\"args\":[{\"prim\":\"list\",\"args\":[{\"prim\":\"operation\"}]},{\"prim\":\"unit\"}]}]}]},{\"prim\":\"IF_NONE\",\"args\":[[{\"prim\":\"PUSH\",\"args\":[{\"prim\":\"string\"},{\"string\":\"c\"}]},{\"prim\":\"FAILWITH\"}],[]]},{\"prim\":\"PUSH\",\"args\":[{\"prim\":\"mutez\"},{\"int\":\"0\"}]}]]},{\"prim\":\"TRANSFER_TOKENS\"},{\"prim\":\"DIP\",\"args\":[[{\"prim\":\"NIL\",\"args\":[{\"prim\":\"operation\"}]}]]},{\"prim\":\"CONS\"}]]},{\"prim\":\"CONS\"},{\"prim\":\"DIP\",\"args\":[[{\"prim\":\"UNIT\"}]]},{\"prim\":\"PAIR\"}]},\"metadata\":{\"balance_updates\":[],\"operation_result\":{\"status\":\"backtracked\",\"storage\":{\"prim\":\"Unit\"},\"consumed_gas\":\"5198\",\"consumed_milligas\":\"5197947\",\"storage_size\":\"46\"},\"internal_operation_results\":[{\"kind\":\"origination\",\"source\":\"KT1CPuTzwC7h7uLXd5WQmpMFso1HxrLBUtpE\",\"nonce\":0,\"balance\":\"0\",\"script\":{\"code\":[{\"prim\":\"parameter\",\"args\":[{\"prim\":\"nat\"}]},{\"prim\":\"storage\",\"args\":[{\"prim\":\"unit\"}]},{\"prim\":\"code\",\"args\":[[{\"prim\":\"FAILWITH\"}]]}],\"storage\":{\"prim\":\"Unit\"}},\"result\":{\"status\":\"backtracked\",\"big_map_diff\":[],\"balance_updates\":[{\"kind\":\"contract\",\"contract\":\"tz1SUgyRB8T5jXgXAwS33pgRHAKrafyg87Yc\",\"change\":\"-8000\"},{\"kind\":\"contract\",\"contract\":\"tz1SUgyRB8T5jXgXAwS33pgRHAKrafyg87Yc\",\"change\":\"-64250\"}],\"originated_contracts\":[\"KT1KFvJWMcXi7sSuq5Pqe1bJXWTomndaAKw4\"],\"consumed_gas\":\"1595\",\"consumed_milligas\":\"1594348\",\"storage_size\":\"32\",\"paid_storage_size_diff\":\"32\"}},{\"kind\":\"transaction\",\"source\":\"KT1CPuTzwC7h7uLXd5WQmpMFso1HxrLBUtpE\",\"nonce\":1,\"amount\":\"0\",\"destination\":\"KT1CPuTzwC7h7uLXd5WQmpMFso1HxrLBUtpE\",\"parameters\":{\"entrypoint\":\"default\",\"value\":[{\"prim\":\"PUSH\",\"args\":[{\"prim\":\"address\"},{\"bytes\":\"017518c608448ed754b314e1b7acf9a3e8826e0a1a00\"}]},{\"prim\":\"PAIR\"},[{\"prim\":\"CAR\"},{\"prim\":\"CONTRACT\",\"args\":[{\"prim\":\"nat\"}]},{\"prim\":\"IF_NONE\",\"args\":[[{\"prim\":\"PUSH\",\"args\":[{\"prim\":\"string\"},{\"string\":\"a\"}]},{\"prim\":\"FAILWITH\"}],[]]},{\"prim\":\"PUSH\",\"args\":[{\"prim\":\"unit\"},{\"prim\":\"Unit\"}]},{\"prim\":\"PAIR\"},{\"prim\":\"DIP\",\"args\":[[{\"prim\":\"PUSH\",\"args\":[{\"prim\":\"address\"},{\"bytes\":\"0139c8ade2617663981fa2b87592c9ad92714d14c200\"}]},{\"prim\":\"CONTRACT\",\"args\":[{\"prim\":\"pair\",\"args\":[{\"prim\":\"unit\"},{\"prim\":\"contract\",\"args\":[{\"prim\":\"nat\"}]}]}],\"annots\":[\"%getTotalSupply\"]},{\"prim\":\"IF_NONE\",\"args\":[[{\"prim\":\"PUSH\",\"args\":[{\"prim\":\"string\"},{\"string\":\"b\"}]},{\"prim\":\"FAILWITH\"}],[]]},{\"prim\":\"PUSH\",\"args\":[{\"prim\":\"mutez\"},{\"int\":\"0\"}]}]]},{\"prim\":\"TRANSFER_TOKENS\"},{\"prim\":\"DIP\",\"args\":[[{\"prim\":\"NIL\",\"args\":[{\"prim\":\"operation\"}]}]]},{\"prim\":\"CONS\"},{\"prim\":\"DIP\",\"args\":[[{\"prim\":\"UNIT\"}]]},{\"prim\":\"PAIR\"}]]},\"result\":{\"status\":\"failed\",\"errors\":[{\"kind\":\"temporary\",\"id\":\"proto.007-PsDELPH1.michelson_v1.runtime_error\",\"contract_handle\":\"KT1CPuTzwC7h7uLXd5WQmpMFso1HxrLBUtpE\",\"contract_code\":[{\"prim\":\"parameter\",\"args\":[{\"prim\":\"lambda\",\"args\":[{\"prim\":\"unit\"},{\"prim\":\"pair\",\"args\":[{\"prim\":\"list\",\"args\":[{\"prim\":\"operation\"}]},{\"prim\":\"unit\"}]}]}]},{\"prim\":\"storage\",\"args\":[{\"prim\":\"unit\"}]},{\"prim\":\"code\",\"args\":[[{\"prim\":\"CAR\"},{\"prim\":\"UNIT\"},{\"prim\":\"EXEC\"}]]}]},{\"kind\":\"temporary\",\"id\":\"proto.007-PsDELPH1.michelson_v1.script_rejected\",\"location\":35,\"with\":{\"string\":\"b\"}}]}}]}}]}",
-		"\"",
-		"",
-	)
-	fmt.Println(str)
-	t.Fail()
+	r, err := rpc.New("https://mainnet-tezos.giganode.io/")
+	assert.Nil(t, err)
+
+	for i := 0; i < 1; i++ {
+		_, head, err := r.Block(&rpc.BlockIDHead{})
+		assert.Nil(t, err)
+
+		_, _, err = r.GetFA12Balance(rpc.GetFA12BalanceInput{
+			BlockID:             &rpc.BlockIDHead{},
+			ChainID:             head.ChainID,
+			Source:              "tz3RDC3Jdn4j15J7bBHZd29EUee9gVB1CxD9",
+			FA12Contract:        "KT1VYsVfmobT7rsMVivvZ4J8i3bPiqz12NaH",
+			OwnerAddress:        "tz1dH4oxHPWuhzTfc7nPvus7AWyEbqE6YUyN",
+			ContractViewAddress: "KT1CPuTzwC7h7uLXd5WQmpMFso1HxrLBUtpE",
+		})
+		assert.Nil(t, err)
+	}
 }