# 8.3 Past Papers

**Foundational Documents**\
[Echelon Whitepaper](https://paper.echelon.io/echelon-whitepaper.pdf)

[Echelon Whitepaper Addendum](https://paper.echelon.io/Echelon%20Whitepaper%20Addendum%2001.pdf)

[Echelon Charter](https://paper.echelon.io/Echelon_Charter_220601b.pdf)

[Prime Update](https://paper.echelon.io/Echelon_Prime_Update_220601b.pdf)\
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**Bulletins**\
[View ratified Bulletins here](https://docs.echelon.io/echelon-prime-foundation/4.0-governance/4.2-emissaries-prime/bulletins).