tendermint/docs/tendermint-core/block-structure.md

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# Block Structure

The Tendermint consensus engine records all agreements by a
supermajority of nodes into a blockchain, which is replicated among all
nodes. This blockchain is accessible via various RPC endpoints, mainly
`/block?height=` to get the full block, as well as
`/blockchain?minHeight=_&maxHeight=_` to get a list of headers. But what
exactly is stored in these blocks?

The [specification](https://github.com/tendermint/spec/blob/8dd2ed4c6fe12459edeb9b783bdaaaeb590ec15c/spec/core/data_structures.md) contains a detailed description of each component - that's the best place to get started.

To dig deeper, check out the [types package documentation](https://godoc.org/github.com/tendermint/tendermint/types).