Elysium Mainnet is live on Chainstack from day one πŸ”₯

Get reliable @Enter_Elysium RPC endpoints now and start building on a high-performance L2 for Hyperliquid:

β†’ Global Nodes for lightning-fast, geo-balanced RPC
β†’ Dedicated Nodes for unlimited requests and ultra-high Is and WebSockets for real-time apps and deep debugging
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Denim goes live on @base today at 18:00 UTC: blocks drop from 2s to 200ms, Flashblocks are removed.

What changes for your app:

β†’ block.number runs 10x faster. Use block.timestamp for timelocks
β†’ A 2s polling loop now sees ~10 new blocks per tick
β†’ Flashblocks streams and the ewHeads and logs

Chainstack Base nodes are ready ⚑
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Chainstack is supporting @base Batches πŸ”΅

Every team in the program gets the Growth plan free until 30 Nov: 20M request units a month and 250 RPS to ship on Base.

@buildonbase
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X Layer is live on Chainstack Global Nodes πŸ› οΈ

The OP Stack L2 from the @okx team.
Until now it ran on Dedicated Nodes only. Now there is a shared, geo-balanced option too:

β†’ Mainnet and Testnet
β†’ Archive data included
β†’ debug_* and trace_* on paid plans
β†’ Chain ID 196, building on @XLayerOfficial ‡️
chainstack.com/build-better-w…
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Replying to @ChainstackHQ
Both add-ons are available on Global Nodes on every plan, Developer included.

Check both in our marketplace ‡️
chainstack.com/marketplace/

Setup, code for each chain and the full breakdown by @arorautkarshini ‡️
chainstack.com/what-is-mev-pr…
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Replying to @ChainstackHQ
Base, Arbitrum, Arc and Robinhood Chain have no public mempool. The focus shifts to getting your tx included fast.

Optimized submission sends it through a private, optimized path designed for faster inclusion. If the path fails, it goes through the node's standard route, which still isn't public ⚑
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Replying to @ChainstackHQ
On Ethereum and BNB Smart Chain, your tx waits in a public mempool first. Bots can see it and front-run it.

MEV protection sends it only through a private route to block builders. If the route fails, you get a JSON-RPC error and the tx is not broadcast to the public mempool πŸ›‘οΈ
ew nodes ‡️
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Your swap can be profitable for someone else before it even executes πŸ₯ͺ

Whether you're exposed depends on the chain:

β†’ @ethereum, @BNBCHAIN: public mempool, searchers can see your tx
β†’ @base, @arbitrum, @arc, @RobinhoodCrypto: no public mempool, different problem

Chainstack 🧡
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Replying to @ChainstackHQ
Heavy reads are faster. Agave v4.3.0 with @anza_xyz, a preloaded account index and new bare-metal servers.

p95 in our rollout measurements:
β†’ getProgramAccounts: 25-60s to under 2s
β†’ getTokenAccountsByOwner: up to 2 min to about 1s
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Replying to @ChainstackHQ
Heavy scans used to starve the rest of a node. getTokenAccountsByOwner averaged 18 s while basic methods on the same node answered in 20-40 ms.

Scans now run in their own pool, so light calls stay fast, and getSupply went from 2 to 300 RPS.
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Replying to @ChainstackHQ
Why latency dropped: Solana Mainnet Global Nodes now run fully on GEN 2.0 ✨

The old stack sent every request through an edge proxy before it reached the node. In Frankfurt that layer alone added about 17 ms. GEN 2.0 removes it and routes straight to the nearest healthy region.
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We rebuilt Solana RPC on Chainstack and shipped big upgrades for @solana builders:

β†’ getSupply: 2 to 300 RPS
β†’ getProgramAccounts p95: 25-60 s to under 2 s
β†’ Median getLatestBlockhash: ~17 ms to ~2 ms
β†’ and 4 more upgrades

Details in the thread below 🧡
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This week @awscloud launched @ethereum and @solana snapshots ⚑

But when self-hosting, there are more protocols to support, plus deployment, failover, and monitoring.

Chainstack Self-Hosted brings together everything needed for your nodes to work flawlessly.

On AWS, too πŸ‘€
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Replying to @ChainstackHQ
One mainnet run: 1,999 unique payments printed, 86,333 repeats filtered.

In our own measurement, the edge over a WebSocket subscription was tens of milliseconds. It's a protocol demo, not production infra.

Full walkthrough ‡️
chainstack.com/how-to-read-xr…

cc @RippleXDev
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Querying a server tells you what that server has seen.

xrplwatch listens to the XRP Ledger (@XRPLF) peer network instead, so you see transactions as they're relayed, before a ledger includes them ⚑
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Just shipped: Chainstack Multichain API 🚒

One auth token for the nodes you attach to an endpoint:

β†’ Global and Dedicated Nodes in one group
β†’ The same `mt_` token in the HTTPS and WSS URLs of every node
β†’ Your nodes keep their own tokens
β†’ Add or remove nodes; the token stays the same
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Replying to @CeloDevs @Celo
Can’t wait to see what the teams ship
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Chainstack Self-Hosted in September: 4 node upgrades supported, 1 security fix, 1 new partner ⚑

Covers @avax Helicon, @world_chain_ Karst, @Mantle_Official Elysium and @Plasma Aquila.

What landed ‡️
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Chainstack is supporting the Agents on Open Rails hackathon by @CeloDevs ⚑

Every team gets the Growth plan free for 3 months while you build agents on @Celo 🟑
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Ink Mainnet is now on Chainstack Global Nodes ⚑

The OP Stack L2 from the @krakenfx team.
Dedicated Nodes were already live. Global is new.

β†’ Archive mode with debug_* and trace_*
β†’ Chain ID 57073, 1-second blocks

Start building on @inkonchain ‡️
chainstack.com/build-better-w…
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Google's recommended path isn't the only one πŸ‘€

Under 10 weeks until Dec 15. Paste this into a coding agent and it swaps the endpoints after you approve:

`get docs.chainstack.com/docs/migrate-t…`
🚨 BIG: Google Cloud is shutting down its Blockchain Node Engine and Blockchain RPC on December 15, 2026, and handing customers over to Quicknode.
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Day 1 at @token2049 πŸ‡ΈπŸ‡¬

We're here in Singapore. Find us for a chat about nodes, RPC, or what you're shipping πŸ’™
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Replying to @ChainstackHQ
Elysium is testnet-only for now. Chain ID 99801.

Full explainer ‡️
chainstack.com/what-is-elysiu…

Testnet RPC on Chainstack ‡️
chainstack.com/build-better-w…
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Replying to @ChainstackHQ
No public mempool on Elysium.

β†’ Single sequencer at launch
β†’ Ordering by priority fee within each block, no privileged lanes
β†’ eth_newPendingTransactionFilter returns a filter ID but delivers no hashes

Build around block inclusion, not pending-tx visibility.
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Replying to @ChainstackHQ
Elysium doesn't normally post full transaction data to the parent chain.

A committee stores it (AnyTrust) and attests with a compact certificate posted to HyperEVM on @HyperliquidX. One honest committee member is enough to keep the data available.

Testnet runs a 1-of-1 and membership aren't published yet.
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Most Orbit chains settle to Ethereum. @Enter_Elysium settles to HyperEVM ⚑

@arbitrum Orbit chain by @Kinetiq_xyz, HYPE as gas. What that changes for builders:

β†’ Full data lives with a committee, not on the parent chain
β†’ One sequencer at launch, no public mempool
β†’ the way

Details ‡️
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Elysium testnet RPC is live on Chainstack ⚑

Arbitrum Orbit L2 by @Kinetiq_xyz on HyperEVM, designed for 100-200 ms blocks and HYPE as gas.

β†’ Global Nodes
β†’ Dedicated Nodes
β†’ Archive mode with debug_*

Chain ID 99801. Mainnet isn't live yet, so testnet is where you build now Enter_Elysium ‡️
chainstack.com/build-better-w…
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GraphQL is live on Chainstack Global Nodes for @SuiNetwork Mainnet ⚑

β†’ transactions by address
β†’ events by type
β†’ objects by owner

Same token as gRPC. 1 RU per request.

Deploy a Sui node ‡️
chainstack.com/build-better-w…
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TOKEN2049 is next week already πŸ‡ΈπŸ‡¬

Chainstack is heading to @token2049 in Singapore, 7-8 Oct at Marina Bay Sands.

If you're scaling an onchain app or choosing your next RPC provider, catch the team:
β†’ @easeev, Founder
β†’ @AkeGaviar, Director of Developer Experience
β†’ trategy Officer
β†’ @danimimm, Head of Ecosystem
β†’ @MartinAzizian, Head of Partnerships

DM us to lock in a time, or just walk up and say hi. See you in Singapore! πŸ’™
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Arc Mainnet (@arc) is 9 days old.

Looking for an RPC?

Chainstack is the fastest: 55ms P95 πŸ…

Live: compare.chainstack.com/?protocol=arc
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Replying to @ChainstackHQ
The mix shifted by TVL. @Morpho and @SteakhouseFi now lead TVL ($555M and $511.5M), not the memecoin terminals that drove the July spike. Lending and asset management are now 63% of TVL.

Revenue tells a different story: @gmgnai and @ponsdotfamily still out-earn every DeFi app on the chain combinedπŸ’°
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Robinhood Chain TVL is still climbing. As of today: DeFi TVL just under $1B, up sharply over 30 days πŸ“ˆ

According to @DefiLlama:
β†’ Bridged TVL: $3.16B
β†’ Stablecoin cap: $1.04B
β†’ DEXs volume (24h): $1.5B

@RobinhoodCrypto
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Follow-up for builders: still time to build on @Stable and grab your 50% off Growth for 3 months πŸ› οΈ

If you're shipping on Stable, apply code STABLE50 at checkout.

chainstack.com/build-with-sta…

How to apply the promo code + full deploy flow πŸ‘‡
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Replying to @ChainstackHQ
Chainstack runs all four.

Full comparison, specs, and RPC differences ‡️
chainstack.com/stablecoin-l1-…
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Ethereum and Tron still hold about 80% of all stablecoin supply. Sending USDT or USDC still means holding ETH or TRX for gas.

Four L1s are trying to change that: @tempo, @Stable, @arc, and @Plasma. Each one bets on a different actor, not a different feature.
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Replying to @ChainstackHQ
On Hyperliquid, serialization is the security boundary, not metadata.

β†’ reorder a dict field
β†’ write "0.0010" instead of "0.001"
β†’ add a vaultAddress

Any one of these changes the signed connection ID.
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Replying to @ChainstackHQ
Every worker using the same Hyperliquid agent key shares one nonce set, no matter which account it targets:

β†’ master order
β†’ sub-account order
β†’ vault cancel

All three draw from the same pool. Allocate per account instead of per signer, and you hit the wrong set.
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Continuing @HyperliquidX Under the hood πŸ”Ž

Part 5: agent wallets and the nonce state machine

Share one agent key across two workers, and a same-millisecond race produces duplicate nonces. int(time.time() * 1000) will not catch it.
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Chainstack now supports @Arc Mainnet from day one 🚒

The payments L1 built by @circle: Reth + Malachite BFT, gas in USDC, sub-second finality. Chain ID 5042.

What you get:
β†’ Global Nodes + Dedicated Nodes
β†’ Full and Archive modes with debug and trace
β†’ Standard EVM JSON-RPC; g tooling

Start building:
chainstack.com/build-better-w…
Arc Mainnet is live.

Arc launches as the Economic OS for the internet: an open platform for global markets, real-time value movement, tokenized assets, and agentic economic activity.

Arc is more than a blockchain.

It launches as a full-stack financial platform with assets, ability, developer infrastructure, and Circle platform services live from day one.

Arc delivers USDC as native gas, deterministic sub-second finality, EVM compatibility, and institutional validators.

It integrates with Arc Studio, App Kits, Arc Portal, Circle Agent Stack, CCTP, Gateway, CPN, and StableFX.

A complete economic platform at genesis.

Arc launches with infrastructure for:

β†’ Agentic economic workflows
β†’ Lending and borrowing
β†’ Trading and liquidity
β†’ Onchain FX
β†’ Payments and settlement
β†’ Tokenized assets
β†’ Exchanges, wallets, custody, compliance, data, and developer tooling

190+ institutional and ecosystem builders are building across Arc.
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Chainstack Self-Hosted is now live on @ishostingcom ⚑️

Pick Ubuntu 24.04 + Chainstack as your OS at order time on is*hosting's dedicated servers.

Use code CHAINSTACK20 for 20% off your first server ‡️
ishosting.com/en/dedicated/a…
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Replying to @ChainstackHQ
Fomo (@fomo) is a cross-chain social trading app that deploys no contracts of its own. The onchain footprint is ERC-4337 wallets, Relay settlement contracts, and ordinary AMM pools on @solana and Robinhood Chain.

We mapped that footprint and shipped listeners for the full trade e uses the same sequencer feed.
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Replying to @ChainstackHQ
Robinhood Chain (@RobinhoodCrypto) has no public mempool. A tx is invisible until the sequencer orders it. RPC, explorers, and indexers still have to re-execute the block before they can tell you what happened.

The decoder reads the feed directly: hash, kind, target, selector.
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Two new tools on our GitHub πŸ› οΈ

β†’ One reads the Robinhood Chain sequencer feed before RPC, explorers, or indexers see the tx
β†’ The other maps the onchain footprint of @fomo and listens to the full trade flow

Both are open source. Built by @sensuniama πŸ§‘β€πŸ’»
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Replying to @ChainstackHQ
That control starts with an ID. Every HIP-3 market gets a real HyperCore asset ID, not just a display name.

asset = 100000 + perpDexIndex Γ— 10000 + indexInMeta

On testnet, `test:ABC` is 110000.
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Continuing @HyperliquidX Under the hood πŸ”Ž

Part 4: HIP-3 and builder-deployed perpetuals

A builder who stakes enough HYPE can deploy a perpetual market. HyperCore still executes it exactly as configured. The deployer decides what "as configured" means. πŸ‘€
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TON nodes on Chainstack now serve Toncenter v4 (@ton_blockchain).

Same node and API key. Just point the client at /v4.

What's new:
β†’ typed responses
β†’ block-pinned URLs you can cache
β†’ WebSocket subs for blocks and accounts

No more polling loop just to catch a balance ent ‡️
chainstack.com/ton-v4-api-is-…
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Replying to @ChainstackHQ
16 more protocols landed in August. The widest single-month expansion since Self-Hosted launched.

β†’ @avax (Mainnet + Fuji, single AvalancheGo node for the whole Primary Network)
β†’ @arc (Testnet, Circle's USDC-native L1, paired execution + consensus)
β†’ @StellarOrg (Mainnet + -core + stellar-rpc)
β†’ @XRPLF (Mainnet + Testnet, single xrpld node, HTTP + WebSocket)
β†’ @HyperliquidX (Mainnet + Testnet, 48-hour rolling log pruning)

+ 11 more
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Chainstack Self-Hosted's biggest month yet ⚑

12 releases, 17 new protocols, 41 new deployment targets. August blew past every previous month for network coverage.

What landed ‡️
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Chainstack is the infrastructure partner for @CeloDevs’ Agents at Work hackathon on @Celo πŸ’›

β†’ Every registered builder gets a free Growth plan for 3 months, enough to cover the event and keep shipping after it ends
β†’ The winning team on the "Most Value Moved" track gets a ild agents that move real value. We've got the RPC layer covered πŸ› οΈ
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Replying to @ChainstackHQ
Fees are the first surprise. Consensus is the second.

StableBFT is live: ~0.7s blocks, final the moment a tx is included. No reorg window.

Autobahn is the DAG successor promising ~5x more throughput. Still on the roadmap, not production.
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Most payment chains still charge gas in a token that moves with the market. Settlement cost tracks that chart.

@Stable is a payments L1 backed by @bitfinex. USDT0 is the gas token ⛽️
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Stable infra on @Stable ✨

Chainstack added mainnet support in August: Global Nodes, full and archive, and debug_traceCall included.

Infra cost is one of the first blockers for new teams.
βœ‚ Cut it: use code STABLE50 and get 50% off Growth for 3 months.

Claim your 50% off ‡️
chainstack.com/build-with-sta…
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Excited to collaborate with @monad on Metropolis, their flagship online global hackathon and the premier developer event in the EVM ecosystem! πŸ’œ

6 weeks, 4 tracks (finance, payments, social, AI infra), $250K+ in prizes, mentor and ecosystem partner access, including our own eams get 4 Chainstack PRO annual plans, to keep building after the hackathon ends.

Sign up: monad.xyz/metropolis
Introducing the Metropolis global hackathon

Six weeks to build the next generation of startups on Monad.

4 tracks. Over $250K in prizes for builders.

Submissions end October 13th.

monad.xyz/metropolis
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Replying to @ChainstackHQ
Writes don't work like a normal contract call ⏱️

CoreWriter emits an action. HyperCore processes it after the EVM block, not inside it.

β†’ Limit order price and size: 10^8 * human value, not the read-side scaling
β†’ Order actions are delayed a few seconds on purpose: no latency pool
β†’ sendRawAction doesn't revert on a dropped action. Your EVM tx still succeeds.
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Replying to @ChainstackHQ
Precompiles aren't normal Solidity functions πŸ”’

β†’ No function selector: staticcall with raw ABI-encoded args only
β†’ oraclePx returns raw integers: human price = raw / 10^(6 - szDecimals)
β†’ BTC at szDecimals 5: raw 631381 becomes 63,138.1, not 631,381

Assume 1e8 scaling ilently misprice assets.
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Continuing @HyperliquidX Under the hood πŸ”Ž

Part 3: how Solidity actually touches HyperCore state.

β†’ Precompiles: read HyperCore state inside an EVM call, no oracle, no off-chain relay
β†’ CoreWriter: emit an action, HyperCore validates and executes it after the EVM block
ate HyperCore. It reads and writes to the real thing.

🧡
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Replying to @ChainstackHQ
That's the ledger on paper. Here's what it looks like live, transaction by transaction πŸ› οΈ

xrplwatch reads the XRPL gossip layer directly, catching transactions before validation, not after.

β†’ One JSON line per tx
β†’ Filter by type: trades, payments, tokens
β†’ Plain Python API
B

Built by @sensuniama, thanks for shipping this πŸ’™

@RippleXDev
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What is XRP Ledger? Not "the @Ripple chain." πŸ‘€

Ripple:
β†’ runs a minority of validators
β†’ doesn't dictate who you must trust
β†’ can't force an amendment: 80%+ of validators, held for two weeks

The default UNL is jointly published with the XRP Ledger Foundation (@XRPLF).

The ge even if Ripple objects.
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We shipped @solana on Chainstack Self-Hosted 🚒

β†’ Mainnet: 16 vCPU, 256 GiB RAM, ~3.5 TB storage
β†’ Devnet: 8 vCPU, 64 GiB RAM, ~2.2 TB storage
β†’ Agave v4.2.0, snapshot-based bootstrap on both networks

Those specs aren't padding. Solana doesn't slow down gracefully. A node 350ms slot cadence stays behind.

Details ‡️
chainstack.com/solana-is-now-…

@solana_devs
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Replying to @ChainstackHQ
Full breakdown of HyperBFT finality, Spot vs Perp accounting, and sub-account isolation by @AndreyObruchkov, Part 2 of the series ‡️

chainstack.com/hyperliquid-hy…
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Replying to @ChainstackHQ
Spot and Perp are only half the isolation story πŸ”’

Sub-accounts aren't a UI toggle. Each one is its own address with its own `clearinghouseState` and `spotState`, no private key of its own.

A liquidation on one can't touch another's balances. Up to 10 sub-accounts once the volume
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