[**brk-client**](../README.md) *** [brk-client](../globals.md) / SeriesTree\_Indexes\_Halving # Interface: SeriesTree\_Indexes\_Halving Defined in: [Developer/brk/modules/brk-client/index.js:6033](https://github.com/bitcoinresearchkit/brk/blob/25b226856307047c5c10a075ec57219ca9987c38/modules/brk-client/index.js#L6033) ## Properties ### firstHeight > **firstHeight**: [`SeriesPattern16`](../type-aliases/SeriesPattern16.md)\<`number`\> Defined in: [Developer/brk/modules/brk-client/index.js:6034](https://github.com/bitcoinresearchkit/brk/blob/25b226856307047c5c10a075ec57219ca9987c38/modules/brk-client/index.js#L6034)