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we're literally init4 the tech
I’m in it for the tech
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I’m in it for the tech
I’m in it for the tech
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I’m in it for the tech
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I’m in it for the tech
I’m in it for the tech
I’m in it for the tech
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We built ajj for real use - it's stable, production-ready, and open for community building.
Contribute: github.com/init4tech/ajj
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Need pub/sub?
ajj provides first-class support for WebSocket and IPC transports, with built-in eth_subscribe notifications:
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ajj's design draws from axum's proven approach - here's how easy it is to map methods to async handlers:
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At Init4, we're improving the ergonomics for developers who rely on critical Ethereum components.
In that spirit, we're announcing ajj - a modern JSON-RPC router designed for exceptional developer experience: github.com/init4tech/ajj
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look out for @_prestwich at @EFDevcon! he'll be asking tough questions and continuing to have the best hair in crypto! go find him to chat about what we're up to 🎀
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Some potential
- Retroactively vetoing (censoring) transactions
- Modifying trade outcomes using 1-block lagged host-chain prices
- Enshrining oracles like precompiles
Read more:
blog.init4.technology/p/reba…
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We also discuss host-watching rollups, where some rollup reorgs are NOT triggered by host reorgs.
While this category includes the 2019/2020 minimum-viable consensus design by @jadler0 and @badcryptobitch, none have ever been built, and the applications have hardly been explored
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Current rollups are host-following - all rollup reorgs are triggered by host reorgs.
Based rollups are totally host-following (all DA reorgs cause rollup reorgs), while run-ahead rollups are partially host-following (some DA reorgs cause rollup reorgs)
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Chains reorg when nodes reject blocks they used to accept. Rollups reorg when nodes reject a sequence they used to accept. This can happen even if the DA doesn't reorg. The rollup chooses its own FCR. Current rollups only reorg when their host does
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Rollup fork-choice rules are poorly explored. In this article, we examine what it means for a rollup to "fork", and how rollups can reorg without their DA layer. Rollups can use this for enshrined app logic.
Click through for more, TL;DR below:
blog.init4.technology/p/reba…
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This affects all existing rollups and Ethereum’s EIP-7547 and cannot be totally fixed. Forced inclusion is not sufficient to protect users.
Read our full discussion
blog.init4.technology/p/the-…
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For example: A sequencer can prevent USDC withdrawals from lending markets by temporarily borrowing all available USDC, or censor an AMM trade by moving the price temporarily
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Exclusion is not a censor's only tool.
Censors can manipulate state, which can invalidate transactions. They can use this to harm users, while still including their transactions. Forced inclusion cannot prevent this
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Forced inclusion doesn’t prevent censorship. It has hard limits.
As a result, existing rollups have worse censorship resistance than Ethereum. They do not “inherit” its security properties
Click through, or scroll down for the 3 tweet version blog.init4.technology/p/the-…
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