  This paper discusses the issues with liquidity that inhibit adoption of
so-called wrapped tokens, i.e. digital assets issued in one blockchain
ecosystem (origin) with representation in other blockchain networks
(destination), and an incentive model and a governance mechanism for solving
these issues are suggested. The proposed liquidity model called Graviton can be
implemented both within the framework of a single destination chain, or as a
blockchain-agnostic solution combining various blockchain platforms together
and providing liquidity to wrapped tokens in each of them. This model does not
depend on how cross-chain transfer gateways are implemented, and can work with
both centralized gates and bridges, or decentralized trustless gateways, as
well as gateways based on oracle networks and threshold signatures.

Cryptography and Security