[**brk-client**](../README.md) *** [brk-client](../globals.md) / SeriesTree\_Indexes\_Halving # Interface: SeriesTree\_Indexes\_Halving Defined in: [Developer/brk/modules/brk-client/index.js:5757](https://github.com/bitcoinresearchkit/brk/blob/e4496742a4964a986078f3a65d3bfdc1e47a5eba/modules/brk-client/index.js#L5757) ## Properties ### firstHeight > **firstHeight**: [`SeriesPattern16`](../type-aliases/SeriesPattern16.md)\<`number`\> Defined in: [Developer/brk/modules/brk-client/index.js:5758](https://github.com/bitcoinresearchkit/brk/blob/e4496742a4964a986078f3a65d3bfdc1e47a5eba/modules/brk-client/index.js#L5758)