# Background Knowledge

{% content-ref url="background-knowledge/what-is-on-chain-data" %}
[what-is-on-chain-data](https://userguide.cryptoquant.com/what-is-cryptoquant/background-knowledge/what-is-on-chain-data)
{% endcontent-ref %}

{% content-ref url="background-knowledge/why-entity-matters" %}
[why-entity-matters](https://userguide.cryptoquant.com/what-is-cryptoquant/background-knowledge/why-entity-matters)
{% endcontent-ref %}

{% content-ref url="background-knowledge/what-is-a-utxo" %}
[what-is-a-utxo](https://userguide.cryptoquant.com/what-is-cryptoquant/background-knowledge/what-is-a-utxo)
{% endcontent-ref %}