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[**brk-client**](../README.md)
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[brk-client](../globals.md) / TxIn
# Interface: TxIn
Defined in: [Developer/brk/modules/brk-client/index.js:1238](https://github.com/bitcoinresearchkit/brk/blob/37e2b6eae2ee7db79b2d392e73eb0697e4a91b28/modules/brk-client/index.js#L1238)
## Properties
### innerRedeemscriptAsm
> **innerRedeemscriptAsm**: `string`
Defined in: [Developer/brk/modules/brk-client/index.js:1247](https://github.com/bitcoinresearchkit/brk/blob/37e2b6eae2ee7db79b2d392e73eb0697e4a91b28/modules/brk-client/index.js#L1247)
Inner redeemscript in assembly (for P2SH-wrapped SegWit: scriptsig + witness both present)
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### innerWitnessscriptAsm
> **innerWitnessscriptAsm**: `string`
Defined in: [Developer/brk/modules/brk-client/index.js:1248](https://github.com/bitcoinresearchkit/brk/blob/37e2b6eae2ee7db79b2d392e73eb0697e4a91b28/modules/brk-client/index.js#L1248)
Inner witnessscript in assembly (for P2WSH: last witness item decoded as script)
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### isCoinbase
> **isCoinbase**: `boolean`
Defined in: [Developer/brk/modules/brk-client/index.js:1245](https://github.com/bitcoinresearchkit/brk/blob/37e2b6eae2ee7db79b2d392e73eb0697e4a91b28/modules/brk-client/index.js#L1245)
Whether this input is a coinbase (block reward) input
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### prevout?
> `optional` **prevout?**: [`TxOut`](TxOut.md) \| `null`
Defined in: [Developer/brk/modules/brk-client/index.js:1241](https://github.com/bitcoinresearchkit/brk/blob/37e2b6eae2ee7db79b2d392e73eb0697e4a91b28/modules/brk-client/index.js#L1241)
Information about the previous output being spent
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### scriptsig
> **scriptsig**: `string`
Defined in: [Developer/brk/modules/brk-client/index.js:1242](https://github.com/bitcoinresearchkit/brk/blob/37e2b6eae2ee7db79b2d392e73eb0697e4a91b28/modules/brk-client/index.js#L1242)
Signature script (hex, for non-SegWit inputs)
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### scriptsigAsm
> **scriptsigAsm**: `string`
Defined in: [Developer/brk/modules/brk-client/index.js:1243](https://github.com/bitcoinresearchkit/brk/blob/37e2b6eae2ee7db79b2d392e73eb0697e4a91b28/modules/brk-client/index.js#L1243)
Signature script in assembly format
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### sequence
> **sequence**: `number`
Defined in: [Developer/brk/modules/brk-client/index.js:1246](https://github.com/bitcoinresearchkit/brk/blob/37e2b6eae2ee7db79b2d392e73eb0697e4a91b28/modules/brk-client/index.js#L1246)
Input sequence number
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### txid
> **txid**: `string`
Defined in: [Developer/brk/modules/brk-client/index.js:1239](https://github.com/bitcoinresearchkit/brk/blob/37e2b6eae2ee7db79b2d392e73eb0697e4a91b28/modules/brk-client/index.js#L1239)
Transaction ID of the output being spent
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### vout
> **vout**: `number`
Defined in: [Developer/brk/modules/brk-client/index.js:1240](https://github.com/bitcoinresearchkit/brk/blob/37e2b6eae2ee7db79b2d392e73eb0697e4a91b28/modules/brk-client/index.js#L1240)
Output index being spent (u16: coinbase is 65535, mempool.space uses u32: 4294967295)
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### witness
> **witness**: [`Witness`](../type-aliases/Witness.md)
Defined in: [Developer/brk/modules/brk-client/index.js:1244](https://github.com/bitcoinresearchkit/brk/blob/37e2b6eae2ee7db79b2d392e73eb0697e4a91b28/modules/brk-client/index.js#L1244)
Witness data (stack items, present for SegWit inputs; hex-encoded on the wire)