Today's blockchain and cryptocurrency headlines Bitcoin is down half a percent at $7,156 XRP is down 1% at 19 cents and Ethereum is down half a percent at $127 Top gainers in the last 24 hours: Counterparty, up 13% Eight congressmen have asked the IRS to clarify crypto tax rules around airdrops and forks. The french financial markets authority has granted its first approval for an ICO. Binance has invested in crypto derivatives platform FTX. The SEC has settled charges against an ICO issuer and levied a $250k fine. Blockchain (dot) com has added support for the british pound sterling.