[**brk-client**](../README.md) *** [brk-client](../globals.md) / SeriesTree\_Indexes\_Halving # Interface: SeriesTree\_Indexes\_Halving Defined in: [Developer/brk/modules/brk-client/index.js:6180](https://github.com/bitcoinresearchkit/brk/blob/9879a986aa1b6609c39bacbd2ccae5519598e212/modules/brk-client/index.js#L6180) ## Properties ### firstHeight > **firstHeight**: [`SeriesPattern16`](../type-aliases/SeriesPattern16.md)\<`number`\> Defined in: [Developer/brk/modules/brk-client/index.js:6181](https://github.com/bitcoinresearchkit/brk/blob/9879a986aa1b6609c39bacbd2ccae5519598e212/modules/brk-client/index.js#L6181)