Kadena block API
These endpoints return whole blocks, headers and payloads, from the chain database. Generally, blocks are returned in ascending order and include orphaned blocks. For only querying blocks that are included in the winning branch of the chain the `branch` endpoints can be used, which return blocks in descending order starting from the leafs of branches of the block chain. Blocks are returned in only one format, with block headers and payloads in JSON encoding.