> For the complete documentation index, see [llms.txt](https://mapo.gitbook.io/dev-docs/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://mapo.gitbook.io/dev-docs/fundamentals/blockchain.md).

# Blockchain

- [Accounts](https://mapo.gitbook.io/dev-docs/fundamentals/blockchain/accounts.md): Explanation of MAPO Accounts - Their Data Structure and Relationship with Key Pair Cryptography。
- [Transactions](https://mapo.gitbook.io/dev-docs/fundamentals/blockchain/transactions.md): MAPO-Relay-Chain Transactions - How They Work, Their Data Structure, and How to Send Them via Applications.
- [Blocks](https://mapo.gitbook.io/dev-docs/fundamentals/blockchain/blocks.md): Overview of Blocks in MAPO-Relay-Chain - Their Data Structure, Purpose, and How Blocks are Generated
- [Gas](https://mapo.gitbook.io/dev-docs/fundamentals/blockchain/gas.md)
- [MPT Tree](https://mapo.gitbook.io/dev-docs/fundamentals/blockchain/mpt.md): Merkle Patricia Tree Introduction
- [RLP Encoding](https://mapo.gitbook.io/dev-docs/fundamentals/blockchain/rlp.md)
- [Oracle](https://mapo.gitbook.io/dev-docs/fundamentals/blockchain/oracle.md)