Tuesday, 16 February 2016

Bitcoin Transactions – Pay-to-Script-Hash?


Bitcoin Transactions – Pay-to-Script-Hash?


Pay-to-Script-hash, or P2SH, are extension of the multisignature idea but reducing the burden on the Bitcoin infrastructure in terms of storage required. 

A common 2-of-3 multisignature transaction can take up to five times as much space as a simple pay to address or pay to public key transaction.


They also reduce the complexity of the encoding, and shift the burden in terms of fees from the sender to the recipient – after all it’s their request to have the complexity in the conditions for the release of the funds. 


 
This is done by transferring the script used to spend the transactions to the and making the hold a hash of the script. This means that a new address has been created – a script address.



Script addresses are not made through the usual process of elliptic curve cryptography but are instead the hash of the of a multi signature transaction. A script address is appended with a value of five before being hashed, resulting in hashed script addresses starting with the number 3 – remember that standard Bitcoin addresses start with a 1 – with other variances for the testnet. 

Structuring P2SH transactions should be done with care as an error can make the transaction unspendable. Another important point is that the details of the transaction script are not stored in the blockchain, only the hash, and therefore the creator of the transaction must keep a copy of the script or remember the route to generate the specific hash. 



RELATED ARTICLES:

What is the Bitcoin Transactions?
source: http://theriseofthebitcoins.blogspot.com/2016/02/what-is-bitcoin-transaction.html

How does the bitcoin network actually work?
source: http://theriseofthebitcoins.blogspot.com/2016/02/how-does-bitcoin-network-actually-work.html

Bitcoin Transactions – The Scriptsig and Scriptpubkey




1 comment:

  1. YoBit lets you to claim FREE CRYPTO-COINS from over 100 unique crypto-currencies, you complete a captcha once and claim as much as coins you want from the available offers.

    After you make about 20-30 claims, you complete the captcha and continue claiming.

    You can press CLAIM as many times as 30 times per one captcha.

    The coins will stored in your account, and you can exchange them to Bitcoins or Dollars.

    ReplyDelete

Like & Share