Exchanges


Mercados

Coinbase Customer Doubles Down on Legal Action Against IRS

A Coinbase user resisting an IRS request for customer data has refused to abandon the fight, but experts say the tax agency's actions were expected.

chips, poker

Mercados

Coinbase User Asks Federal Court to Stop IRS Bitcoin Subpoena

A Coinbase customer has gone to court to stop the IRS from subpoenaing user data from the bitcoin and ether exchange startup.

justice

Mercados

Bitcoin Wallet Blockchain Adds Ex-Barclays Chief to Board

Bitcoin wallet startup Blockchain has added former Barclays Bank group chief executive Antony Jenkins to its board of directors.

jenkins

Mercados

Why Circle's Bitcoin 'Pivot' Isn't What it Seems

Circle’s announcement this week that it will no longer offer users the ability to buy and sell bitcoin is not what it seems.

shadow-puppet

Mercados

A16z, USV Invest $10 Million in Blockchain Token Trading Firm

A hedge fund that specializes in the trading of blockchain-based assets has raised $10m from a notable cast of VCs.

Andreessen Horowitz co-founder and General Partner Marc Andreessen (Fortune Live Media via Flickr)

Mercados

Inside 'Spark': Circle's New Bitcoin-Powered Smart Contract Platform

Overshadowed by its decision to cut bitcoin services, Circle announced new tech yesterday. Here's how it works.

sparks

Mercados

What the Blockchain Industry is Saying About Circle's Bitcoin Shift

Industry observers, startup execs and researchers weigh in on Circle's shift away from its bitcoin exchange service.

screen-shot-2016-12-07-at-5-15-49-pm

Mercados

Is Your Blockchain Token a Security? Coinbase Leads Legal Framework Launch

Coinbase, Coin Center and Union Square Ventures have released new research into the distributed application business model.

books, law

Mercados

Circle Cuts Bitcoin Buying and Selling in Product Pivot

Circle Internet Financial has announced it will no longer allow customers to buy and sell bitcoin.

scissors, shears

Mercados

Coinbase Seeks Patent for Bitcoin Private Key Security System

Bitcoin and ether exchange startup Coinbase is seeking a patent for a security system for bitcoin private keys.

key