Sei

Pacific-1 launched in August 2023 from the Cosmos stack. The original thesis was narrower than today’s general-purpose positioning: an orderbook-aware chain for trading applications, secured by delegated proof of stake. Twin Turbo pipelined Tendermint proposal and block processing to shorten finality without inventing a new consensus family.

The token distribution also fixed the political starting point. Of 10 billion SEI, 48% went to an ecosystem reserve, 20% to the team, 20% to private investors, 9% to the Foundation and 3% to launchpool. The word “community” included future staking rewards, grants and incentives managed through institutional reserves, not ten billion coins immediately dispersed among users.

SEI gave holders protocol functions: pay gas, delegate to a validator and vote with staked power. It did not turn a holder into a shareholder of Sei Labs, a beneficiary of the Foundation treasury or an owner of chain fees. Those distinctions became more important as scheduled allocations entered circulation.

The filed schedule gives more detail: private investors had a one-year cliff followed by three years of linear vesting, while team tokens had a one-year cliff followed by five years of variable vesting. The filing also reports distinct Foundation, ecosystem-reserve and validator-reward release calendars. These dates describe release eligibility, not proof that a released wallet sold.

Ethereum compatibility became the next constraint. Rather than replace Pacific-1, V2 passed through governance and added Geth-based EVM execution beside CosmWasm. When the public V2 beta opened in July 2024, both environments shared the same validator set, native coin and underlying modules.

Optimistic parallelization was the bridge between the old performance thesis and the new developer market. Nodes run apparently independent calls concurrently, inspect their actual state conflicts and replay collisions deterministically. It improves independent workloads without granting every contract a fixed throughput number.

SEI delegators can vote on text, parameter, spending and software-upgrade proposals. Validators vote on blocks and commonly inherit delegated voting weight when delegators do not override them. A passed upgrade is a social and operational instruction: validators must run the release at the target height or fall out of consensus.

Sei Labs controls neither a universal proxy admin nor an ERC-20 mint key because SEI is native chain state. Labs nevertheless authors much of the client and frames upgrade proposals. The Foundation controls grants and large allocated reserves. These powers influence roadmap and participation without being the same as unilateral consensus authority.

Staking makes that boundary concrete. A holder chooses a validator and may earn emissions or fees after commission, but also accepts slashing exposure and a 21-day unbonding queue. Governance weight attaches to delegated stake at the relevant snapshot, not to an off-chain exchange balance.

The dual-runtime arrangement did not remain the endpoint. SIP-3 selected an EVM-only direction. Governance froze new CosmWasm uploads and disabled inbound and outbound IBC in 2026. Existing CosmWasm contracts and Cosmos staking state did not vanish; supported functions can continue through EVM precompiles and linked addresses.

This leaves a chain with historical layers. Twin Turbo, parallel execution and SeiDB are current; Autobahn and Giga remain planned. SEI still secures validators and governance through Cosmos-derived modules even as users are told to interact through EVM addresses. The token’s biography is therefore less a clean migration than an in-place change of public language.