ViaBTC Lets Users Mine Crypto for Free

ViaBTC has announced that from February 12, 2018 to May 12, 2018, ViaBTC pool miners can mine ZEC/ETH/ETC with zero fees for all mining modes
26 February 2018   3006

ViaBTC has developed the Bitcoin mining pool with the advanced deployment technology, and mining pools for competing coins and cloud mining products. ViaBTC aims to extend its business to the entire cryptocurrency industry chain in the future and serve global users with technology innovations.

ViaBTC has announced that from February 12, 2018 to May 12, 2018, ViaBTC pool miners can mine ZEC/ETH/ETC with zero fees for all mining modes.

viabtc ethereum classic miningViaBTC Ethereum Classic

Details:

  • Duration: 00:00 February 12th - 00:00 May 12th, 2018
  • ZEC Pool Stratum URL: stratum+tcp://zec.viabtc.com:3333
  • ETH/ETC Pool Stratum URL: stratum+tcp://ethereum.viabtc.com:3333 
  • Note: Port 25 or 443 is available too

ViaBTC supports multiple payment methods like PPS+, PPLNS or SOLO. 

Previously, we have reported that ViaBTC was going to close mining contract market in order to control speculation and protect the interests of investors, and that ViaBTC increased cloud mining commission.

Constantinople to be Postponed

Ethereum's hardfork will be late due to critical vulnerability found
16 January 2019   150

A scheduled upgrade of the Ethereum network called Constantinople was postponed indefinitely after a critical vulnerability was discovered in one of the improvements, CoinDesk reports.

This is a vulnerability in EIP-1283, which, as identified by the audit company SmartSecurity smart contracts, gave hackers the opportunity to steal user funds.

During a video conference on Tuesday with the participation of Ethereum developers and other clients and projects working on the network, it was decided to temporarily postpone the activation of the hard forks.

In particular, Vitaly Buterin, developers Hudson Jameson, Nick Johnson and Evan van Ness, as well as release manager of Parity Afri Shoedon took part in the meeting. Discussing the revealed vulnerability, they agreed that it would be impossible to eliminate it before the appointed time for hardfork (around 04:00 UTC on January 17).

A vulnerability, called a reentrancy attack, allows an attacker to repeatedly enter the same function and infinitely withdraw funds.

Imagine that my contract has a function which makes a call to another contract… If I’m a hacker and I’m able to trigger function a while the previous function was still executing, I might be able to withdraw funds.
 

Joanes Espanol

CTO, blockchain analytics firm Amberdata

According to him, this is a lot like the vulnerabilities that were discovered in The DAO in the summer of 2016.

Representatives of ChainSecurity also noted that up to the Constantinople hard fork, data storage on the network cost 5,000 units of gas, which exceeds the 2,300 gas usually needed to call the “transfer” and “send” functions. After the upgrade, “dirty” storage operations will cost 200 units of gas, and an attacking contract can use 2,300 gas to successfully manipulate the variables of vulnerable contracts.

New date of hardfork not yet determined.