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1. getaddress getaddress Public

   Builds a list of reachable Bitcoin nodes by impersonating one and sending `getaddr` messages to other known nodes.

   Rust 1

2. sha256.c sha256.c Public

   C implementation of SHA-256

   C

3. ecdsa-sign-verify.py ecdsa-sign-verify.py

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   '''

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   A simple example illustrating  

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   message signing and signature

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   verification using secp256k1

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   '''

4. add an OP_RETURN output to a PSBT add an OP_RETURN output to a PSBT

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   #!/usr/bin/python3

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   '''

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   this script takes in an PSBT and adds an 

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   OP_RETURN output (OP_RETURN OP_PUSHDATA1 <len(message)> <message>)