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How to use Bitcoin stake sidechain
If you want to use stake feature with Bitcoin tokens, you need to stake some BTC on Echo network address.
Step-by-step: 1. Generate stake address. 2. Transfer BTC to given address. 3. Wait for approvals. 4. Enjoy!
Note: there is no fee on such transactions! (except Bitcoin miner fee)
You can withdraw founds at any time. There is no timestamp or else blocking with this type of script. For more info look into section above.
Note: only you can unlock such transaction(you can use script below for that reason).
Generate stake address
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create_btc_stake_address nathan 03cce12c983779287b097cdba8699929f616f0fe6622b1f018e6ada1125549518b true
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Get stake address
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>>> get_btc_stake_address nathan
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{
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"id": "1.26.0",
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"account": "1.2.26",
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"stake_script": "76a9146334edf1175678f7905763e6b24361ab998aa23288ac52755675",
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"p2sh_address": "2N92ShU1GRnkMwMtqN86WVUEw5NwjXrJYHC",
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"extensions": []
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}
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stake_script is modified P2PKH script:- scriptPubKey:
OP_DUP OP_HASH160 <pubkey hash> OP_EQUALVERIFY OP_CHECKSIG <digit from the instance> OP_DROP ... <digit from the instance> OP_DROP - scriptSig:
<sig> <pubkey> <stake_script>
<digit from the instance>- is digit from instance id of account (for 1.2.16 it will be 1 and 6)
Example:
- nathan have 1.2.26 ID
- nathan used public key
03cce12c983779287b097cdba8699929f616f0fe6622b1f018e6ada1125549518b(hash160(pubkey) = 6334edf1175678f7905763e6b24361ab998aa232)
So he got
stake_script = OP_DUP OP_HASH160 6334edf1175678f7905763e6b24361ab998aa232 OP_EQUALVERIFY OP_CHECKSIG OP_2 OP_DROP OP_6 OP_DROPUnlock such script after sending funds
Example of script, that generates spent transaction.
Preconditions:
- nathan have 1.2.26 ID
- nathan used private key
cRissuViCFcDHkqsDZ8LekVPNpJS8WajToQVF6wsfEV1eRojak8g - nathan used public key
03cce12c983779287b097cdba8699929f616f0fe6622b1f018e6ada1125549518b - nathan sent 25 BTC to
2N92ShU1GRnkMwMtqN86WVUEw5NwjXrJYHC
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from bitcoinutils.setup import setup
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from bitcoinutils.utils import to_satoshis
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from bitcoinutils.transactions import Transaction, TxInput, TxOutput
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from bitcoinutils.keys import P2pkhAddress, P2shAddress, PrivateKey
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from bitcoinutils.script import Script
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​
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def main():
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# always remember to setup the network
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setup('testnet')
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​
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# create transaction input from tx id of UTXO (contained 0.1 tBTC)
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txin = TxInput('28cfd7b592e6d3cc87e28071c3a0b134e0a5f8243ca7e438e1051c618c11129d', 0)
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​
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# secret key needed to spend P2PK that is wrapped by P2SH
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p2pk_sk = PrivateKey('cRissuViCFcDHkqsDZ8LekVPNpJS8WajToQVF6wsfEV1eRojak8g')
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p2pk_pk = p2pk_sk.get_public_key().to_hex()
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​
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# create the redeem script - needed to sign the transaction
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redeem_script = Script(['OP_DUP', 'OP_HASH160', '6334edf1175678f7905763e6b24361ab998aa232', 'OP_EQUALVERIFY', 'OP_CHECKSIG', 'OP_2', 'OP_DROP', 'OP_6', 'OP_DROP'])
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​
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to_addr = P2pkhAddress('n4bkvTyU1dVdzsrhWBqBw8fEMbHjJvtmJR')
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txout = TxOutput(to_satoshis(24.99), to_addr.to_script_pub_key() )
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​
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# create transaction from inputs/outputs -- default locktime is used
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tx = Transaction([txin], [txout])
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​
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# print raw transaction
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print("\nRaw unsigned transaction:\n" + tx.serialize())
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​
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# use the private key corresponding to the address that contains the
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# UTXO we are trying to spend to create the signature for the txin -
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# note that the redeem script is passed to replace the scriptSig
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sig = p2pk_sk.sign_input(tx, 0, redeem_script )
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​
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# set the scriptSig (unlocking script)
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txin.script_sig = Script([sig, p2pk_pk, redeem_script.to_hex()])
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signed_tx = tx.serialize()
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​
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# print raw signed transaction ready to be broadcasted
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print("\nRaw signed transaction:\n" + signed_tx)
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print("\nTxId:", tx.get_txid())
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​
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if __name__ == "__main__":
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main()
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Last modified 1yr ago