blockchain

type Block struct {
	Header BlockHeader `json:"header"`
	Txns   []Txn       `json:"txns"`
}

type BlockHeader struct {
	SeqNum     uint64           `json:"seq_num"`
	PrevHash   crypto.SHA256Sum `json:"prev_hash"`
	TxnAcc     asm.AsyncAcc     `json:"txn_acc"`
	PKIAcc     asm.AsyncAcc     `json:"pki_acc"`
	Time       time.Time        `json:"time"`
	Difficulty uint64           `json:"difficulty"`
	Nonce      uint64           `json:"nonce:"`
}

type Blockchain struct {
	SVP
	BlockDBPath string
	UTxnDBPath  string
}

type GenerationTxn struct {
	TxnType TxnType
	Ins     []Input
	Outs    []Output
}

type Identity struct {
	Domain    crypto.SHA256Sum
	Subdomain crypto.SHA256Sum
}

type Input struct {
	PrevHash  crypto.SHA256Sum         `json:"hash"`
	PublicKey crypto.CertcoinPublicKey `json:"public"`
	Signature crypto.CertcoinSignature `json:"sig"`
}

type Output struct {
	Address crypto.SHA256Sum `json:"address"`
	Value   uint64           `json:"value"`
}

type SVP struct {
	HeaderDBPath string
	LastHeader   BlockHeader
}

type Txn struct {
	Type    TxnType  `json:"txn_type"`
	Inputs  []Input  `json:"inputs"`
	Outputs []Output `json:"outputs"`
}

type TxnType uint8