> For the complete documentation index, see [llms.txt](https://docs.blockchainsecurity.asia/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.blockchainsecurity.asia/documentation/on-chain-data.md).

# On-chain Data

- [地址活動查詢](https://docs.blockchainsecurity.asia/documentation/on-chain-data/address-activity.md): 查詢交易列表、交易對手、歷史餘額與地址總覽。
- [持有者與集中度](https://docs.blockchainsecurity.asia/documentation/on-chain-data/token-holders.md): Token 持有者排行與持有集中度（HHI / Gini / Top-N 占比）。