On http://distributed.computer/, it can now be read ;-)

16/07/2018

NOTE: SPARC tokens --> DCC tokens 16-30 July 2018
The SPARC token contract is being migrated to new DCC token contract, 1:1 swap. No action on behalf of SPARC token holders required.

Withdrawals from SPARC Alpha temporarily frozen during migration period.

SPARC Alpha will resume with Distributed Compute Credits (DCC), no changes or action required on behalf of users.

so I think it is transparent on alpha.sparc, we are gonna earned DCC now :-D