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@ -10,7 +10,13 @@ Bitcoin payments that Bob receives. The method Alice uses must ensure
that only Bob can further spend the bitcoins he receives.
The original Bitcoin paper describes a very simple scheme for achieving
those goals, shown in <<pay-to-pure-pubkey>>. A receiver like Bob
those goals, shown in <<pay-to-pure-pubkey>>.
[[pay-to-pure-pubkey]]
.Transaction chain from original Bitcoin paper
image::images/mbc3_aain01.png["Transaction chain from original Bitcoin paper"]
A receiver like Bob
accepts bitcoins to a public key in a transaction that is signed by the
spender (like Alice). The bitcoins that Alice is spending had been
previously received to one of her public keys, and she uses the
@ -18,10 +24,6 @@ corresponding private key to generate her signature. Full nodes can
verify that Alice's signature commits to the output of a hash function
that itself commits to Bob's public key and other transaction details.
[[pay-to-pure-pubkey]]
.Transaction chain from original Bitcoin paper
image::images/mbc3_aain01.png["Transaction chain from original Bitcoin paper"]
We'll examine public keys, private keys, signatures, and hash functions
in this chapter, and then use all of them together to describe
the addresses used by modern Bitcoin software.