[**brk-client**](../README.md) *** [brk-client](../globals.md) / MetricsTree\_Indexes\_Difficultyepoch # Interface: MetricsTree\_Indexes\_Difficultyepoch Defined in: [Developer/brk/modules/brk-client/index.js:3939](https://github.com/bitcoinresearchkit/brk/blob/dc15cceb1ee5fd90210add64f487f8d2140ef45a/modules/brk-client/index.js#L3939) ## Properties ### firstHeight > **firstHeight**: [`MetricPattern8`](../type-aliases/MetricPattern8.md)\<`number`\> Defined in: [Developer/brk/modules/brk-client/index.js:3941](https://github.com/bitcoinresearchkit/brk/blob/dc15cceb1ee5fd90210add64f487f8d2140ef45a/modules/brk-client/index.js#L3941) *** ### heightCount > **heightCount**: [`MetricPattern8`](../type-aliases/MetricPattern8.md)\<`number`\> Defined in: [Developer/brk/modules/brk-client/index.js:3942](https://github.com/bitcoinresearchkit/brk/blob/dc15cceb1ee5fd90210add64f487f8d2140ef45a/modules/brk-client/index.js#L3942) *** ### identity > **identity**: [`MetricPattern8`](../type-aliases/MetricPattern8.md)\<`number`\> Defined in: [Developer/brk/modules/brk-client/index.js:3940](https://github.com/bitcoinresearchkit/brk/blob/dc15cceb1ee5fd90210add64f487f8d2140ef45a/modules/brk-client/index.js#L3940)