[**brk-client**](../README.md) *** [brk-client](../globals.md) / BlockHashStartIndex # Interface: BlockHashStartIndex Defined in: [Developer/brk/modules/brk-client/index.js:102](https://github.com/bitcoinresearchkit/brk/blob/54827cd0a2357417adb8631eb8f53a78e848b39a/modules/brk-client/index.js#L102) ## Properties ### hash > **hash**: `string` Defined in: [Developer/brk/modules/brk-client/index.js:103](https://github.com/bitcoinresearchkit/brk/blob/54827cd0a2357417adb8631eb8f53a78e848b39a/modules/brk-client/index.js#L103) Bitcoin block hash *** ### startIndex > **startIndex**: `number` Defined in: [Developer/brk/modules/brk-client/index.js:104](https://github.com/bitcoinresearchkit/brk/blob/54827cd0a2357417adb8631eb8f53a78e848b39a/modules/brk-client/index.js#L104) Starting transaction index within the block (0-based)