user83710: I'm from Ukraine and do not know much English, sorry. I want to parse blockchain, but I have problems. In block 728 will first txs (user-user). But input-script have not public keys. I read this Missing public key in transaction input. And don't understand how work it. For example first input in txs is 
3046022100e26d9ff76a07d68369e5782be3f8532d25ecc8add58ee256da6c550b52e8006b022100b4431f5a9a4dcb51cbdcaae935218c0ae4cfc8aa903fe4e5bac4c208290b7d5d01
and explorer say what this address get 50 btc in this txs when confirm this block. But how connected this txs and this txs.
How get address from ScriptSig: PUSHDATA(73)?
EDIT
What you need to do to get an address from such transactions?

user208: In general, you can't.
You need to look at the scriptPubKey of the output that is being spent.

83710: <p>I'm from Ukraine and do not know much English, sorry. I want to parse blockchain, but I have problems. In <a href="https://blockchain.info/block/00000000d14f2e97678951ad004d6699babd27e07ca722c46b30dc24c67eed7a" rel="nofollow noreferrer">block 728</a> will first <a href="https://blockchain.info/tx/ff3dc8b461305acc5900d31602f2dafebfc406e5b050b14a352294f0965e0bf6" rel="nofollow noreferrer">txs</a> (user-user). But input-script have not public keys. I read this <a href="https://bitcoin.stackexchange.com/questions/58723/missing-public-key-in-transaction-input">Missing public key in transaction input</a>. And don't understand how work it. For example first input in <a href="https://blockchain.info/tx/ff3dc8b461305acc5900d31602f2dafebfc406e5b050b14a352294f0965e0bf6" rel="nofollow noreferrer">txs</a> is </p>

<p>3046022100e26d9ff76a07d68369e5782be3f8532d25ecc8add58ee256da6c550b52e8006b022100b4431f5a9a4dcb51cbdcaae935218c0ae4cfc8aa903fe4e5bac4c208290b7d5d01</p>

<p>and explorer say what this address get 50 btc in this <a href="https://blockchain.info/tx/ff3dc8b461305acc5900d31602f2dafebfc406e5b050b14a352294f0965e0bf6" rel="nofollow noreferrer">txs</a> when confirm <a href="https://blockchain.info/block-index/15358" rel="nofollow noreferrer">this block</a>. But how connected this <a href="https://blockchain.info/tx/ff3dc8b461305acc5900d31602f2dafebfc406e5b050b14a352294f0965e0bf6" rel="nofollow noreferrer">txs</a> and this <a href="https://blockchain.info/tx/ff3dc8b461305acc5900d31602f2dafebfc406e5b050b14a352294f0965e0bf6" rel="nofollow noreferrer">txs</a>.</p>

<p>How get address from ScriptSig: PUSHDATA(73)?</p>

<p>EDIT</p>

<p>What you need to do to get an address from such transactions?</p>
 208: <p>In general, you can't.</p>

<p>You need to look at the <code>scriptPubKey</code> of the output that is being spent.</p>
