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Package main demonstrates P2WPKH wallet creation Generates random private key and derives P2WPKH (SegWit) address Outputs WIF and hex format private keys along with Bitcoin address

Package main demonstrates Bitcoin transaction signing on TestNet Shows complete workflow: build transaction, sign, verify, and get hex output Uses P2WPKH (SegWit) address format with RBF support

Package main demonstrates Dogecoin transaction signing on TestNet Shows complete workflow: build transaction, sign, verify, and get hex output Uses P2PKH (legacy) address format with RBF support