For the specification of the Etherisc Governance Model (EGM) see this doc
The Etherisc Global Staking Pool (GSP) complies with interface ERC900 with the following added features:
- Anti-sybil protection
- Locking-slashing mechanism
The main motivation is to be used in conjunction with Agreements in the context of Aragon Network, but it has been designed to be as generic as possible, in order to allow for other use cases too.
You can read the initial motivation and spec for this here.