Identify which of the following constitutional provisions are explicitly codified within the text of 'Article 1':
1. The operational legal procedures authorizing the central parliament to establish entirely new regional states.
2. The formal declaration identifying the dual nomenclature of the nation-state.
3. The comprehensive legal definition of the 'State' utilized for the enforcement of Fundamental Rights.
4. The geopolitical declaration defining the overarching structural type of polity.