initial addition of essential crypto, encoders, workflows and LLM instructions

pkg/crypto/ec/wire/msgtx.go

@@ -0,0 +1,43 @@
+package wire
+
+import (
+	"next.orly.dev/pkg/crypto/ec/chainhash"
+)
+
+// OutPoint defines a bitcoin data type that is used to track previous
+// transaction outputs.
+type OutPoint struct {
+	Hash  chainhash.Hash
+	Index uint32
+}
+
+// TxWitness defines the witness for a TxIn. A witness is to be interpreted as
+// a slice of byte slices, or a stack with one or many elements.
+type TxWitness [][]byte
+
+// TxIn defines a bitcoin transaction input.
+type TxIn struct {
+	PreviousOutPoint OutPoint
+	SignatureScript  []byte
+	Witness          TxWitness
+	Sequence         uint32
+}
+
+// TxOut defines a bitcoin transaction output.
+type TxOut struct {
+	Value    int64
+	PkScript []byte
+}
+
+// MsgTx implements the Message interface and represents a bitcoin tx message.
+// It is used to deliver transaction information in response to a getdata
+// message (MsgGetData) for a given transaction.
+//
+// Use the AddTxIn and AddTxOut functions to build up the list of transaction
+// inputs and outputs.
+type MsgTx struct {
+	Version  int32
+	TxIn     []*TxIn
+	TxOut    []*TxOut
+	LockTime uint32
+}