Returns the block information by given hash or number.
Accepts both eth and hedera hash format or block number
^(\d{1,10}|(0x)?([A-Fa-f0-9]{64}|[A-Fa-f0-9]{96}))$OK
x >= 0x >= 0A hex encoded 256-byte array with 0x prefix
^0x[0-9a-fA-F]{512}$x >= 0A timestamp range an entity is valid for