Running Meta Blockchains to Scale DApps on Ethereum
summary
OpenST's Mosaic runs token sharding meta‑blockchains as layer‑2 on Ethereum: open‑stake validator sets use BFT voting to finalize auxiliary chains asynchronously and commit state roots back to Ethereum via a gateway protocol (hash‑lock speedups and bounties to progress messages). A simple example: 100 auxiliary chains turning 10 TPS into ~10,000 TPS, or committing once per day to handle 800 million transactions while using ~1.2% of Ethereum. Testnet has ~120 dev teams; gateway finished in v0.9.3; alpha slated next year.
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chapters (13)
- 0:00Scaling Ethereum with meta blockchains
- 1:05Three pillars of Ethereum scaling
- 2:11Mosaic and meta blockchains
- 3:39Asynchronous finalization for scalability
- 6:14Meta blockchains vs sidechains
- 7:58Decentralizing state root transfers
- 9:26Casper for layer two validators
- 10:53Meta blocks and their structure
- 12:45Recursive meta block construction
- 14:33Slashing and validator rewards
- 16:41Atomic swaps and cross-chain messaging
- 17:49Validator failure recovery
- 18:50Mosaic roadmap
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