[**brk-client**](../README.md) *** [brk-client](../globals.md) / MetricsTree\_Indexes\_Difficultyepoch # Interface: MetricsTree\_Indexes\_Difficultyepoch Defined in: [Developer/brk/modules/brk-client/index.js:3576](https://github.com/bitcoinresearchkit/brk/blob/2e1037ff3648b9362cc223c71160f3d69c7730ad/modules/brk-client/index.js#L3576) ## Properties ### firstHeight > **firstHeight**: [`MetricPattern8`](../type-aliases/MetricPattern8.md)\<`number`\> Defined in: [Developer/brk/modules/brk-client/index.js:3577](https://github.com/bitcoinresearchkit/brk/blob/2e1037ff3648b9362cc223c71160f3d69c7730ad/modules/brk-client/index.js#L3577) *** ### heightCount > **heightCount**: [`MetricPattern8`](../type-aliases/MetricPattern8.md)\<`number`\> Defined in: [Developer/brk/modules/brk-client/index.js:3578](https://github.com/bitcoinresearchkit/brk/blob/2e1037ff3648b9362cc223c71160f3d69c7730ad/modules/brk-client/index.js#L3578) *** ### identity > **identity**: [`MetricPattern8`](../type-aliases/MetricPattern8.md)\<`number`\> Defined in: [Developer/brk/modules/brk-client/index.js:3579](https://github.com/bitcoinresearchkit/brk/blob/2e1037ff3648b9362cc223c71160f3d69c7730ad/modules/brk-client/index.js#L3579)