In Australia, a company director's identity is recognized through the Director Identification Number (DIN), which is assigned by the Australian Securities and Investments Commission (ASIC). ASIC is the government agency responsible for regulating companies, financial markets, and financial service providers in the country.

The DIN serves as a unique identifier for each director and is included in the public register of directors maintained by ASIC. This number is used by various government agencies and organizations to verify the identity of company directors.

When an individual is appointed as a director of a company, their DIN is assigned and recorded in the company's registration documents filed with ASIC. Any updates or changes to the company's director information must also be recorded with ASIC and include the DIN.

It is the responsibility of the director to provide their DIN when appointed or ceasing their directorship, and to keep their details with ASIC up to date. Failure to do so can result in legal consequences and may hinder the ability of the company to conduct business smoothly.

In order to establish a company in Australia, it is necessary to register it with ASIC and obtain an Australian Business Number (ABN) through the Australian Taxation Office (ATO). The process also involves setting up a company bank account and registering for the Goods and Services Tax (GST).

It's important to keep in mind that laws and regulations surrounding company registration and directors' ID in Australia are subject to change, so it's best to stay informed and seek professional advice for the most accurate and up-to-date information.