[**brk-client**](../README.md) *** [brk-client](../globals.md) / SeriesTree\_Indexes\_Halving # Interface: SeriesTree\_Indexes\_Halving Defined in: [Developer/brk/modules/brk-client/index.js:5806](https://github.com/bitcoinresearchkit/brk/blob/76869ed2b6aad1e1c3da7aff4c90e9b5788fb606/modules/brk-client/index.js#L5806) ## Properties ### firstHeight > **firstHeight**: [`SeriesPattern16`](../type-aliases/SeriesPattern16.md)\<`number`\> Defined in: [Developer/brk/modules/brk-client/index.js:5807](https://github.com/bitcoinresearchkit/brk/blob/76869ed2b6aad1e1c3da7aff4c90e9b5788fb606/modules/brk-client/index.js#L5807)