> For the complete documentation index, see [llms.txt](https://docs.bsvblockchain.org/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.bsvblockchain.org/important-concepts/details/spv/data-models.md).

# Data Models

There are two main data models used in SPV transactions. Firstly, the Merkle paths of transactions are contained

{% embed url="<https://bsv.brc.dev/transactions/0074>" %}
The Compound Merkle Path Format
{% endembed %}

<div data-full-width="true"><figure><picture><source srcset="/files/d3czoeBDihS85VWhTtc0" media="(prefers-color-scheme: dark)"><img src="/files/6gLZiDWMlhHJAxqiH7aX" alt=""></picture><figcaption><p>BUMP format demo</p></figcaption></figure></div>

Secondly a list of BUMPs and transactions are serialized:

{% embed url="<https://bsv.brc.dev/transactions/0062>" %}
The encoding format for SPV Transactions
{% endembed %}

These formats are baked in to the ecosystem's core libraries such that they are easy to deal with across many applications.

{% embed url="<https://github.com/bitcoin-sv/ts-sdk>" %}
TypeScript SDK
{% endembed %}

{% embed url="<https://github.com/bitcoin-sv/go-sdk>" %}
Golang SDK
{% endembed %}


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