> For the complete documentation index, see [llms.txt](https://bitcoin-spark-foundation.gitbook.io/bitcoin-spark-whitepaper/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://bitcoin-spark-foundation.gitbook.io/bitcoin-spark-whitepaper/core-blockchain-function.md).

# Core Blockchain Function

- ['Proof-of-Process' Transaction Validation](https://bitcoin-spark-foundation.gitbook.io/bitcoin-spark-whitepaper/core-blockchain-function/proof-of-process-transaction-validation.md)
- [Gas](https://bitcoin-spark-foundation.gitbook.io/bitcoin-spark-whitepaper/core-blockchain-function/gas.md)
- [Validators](https://bitcoin-spark-foundation.gitbook.io/bitcoin-spark-whitepaper/core-blockchain-function/validators.md)
- [Smart Contract Programming Language and Layers](https://bitcoin-spark-foundation.gitbook.io/bitcoin-spark-whitepaper/core-blockchain-function/smart-contract-programming-language-and-layers.md)
- [Official RPC Providers](https://bitcoin-spark-foundation.gitbook.io/bitcoin-spark-whitepaper/core-blockchain-function/official-rpc-providers.md)
- [Bridging](https://bitcoin-spark-foundation.gitbook.io/bitcoin-spark-whitepaper/core-blockchain-function/bridging.md)