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How to Claim SOL From Empty Solana Token Accounts
Originally published on xroot.dev. Claiming SOL is not an airdrop and not a reward. It is closing the empty token accounts your wallet left behind - each one still holding the refundable rent deposit, about 0.002 SOL, that was paid the day it was opened.E
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Permissioned Tokens on Solana: How Token ACL Works - and How to Tell It From a Honeypot
Originally published on xroot.dev. On-chain, a regulated fund token and a honeypot scam are the same shape.Both are Token-2022 mints. Both keep an active freeze authority. Both set DefaultAccountState to Frozen, so every new holder's account starts locked
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Solana's 4,096-Byte Transactions: What v1 Breaks and How to Fix It
Originally published on xroot.dev. Solana's transaction size limit - 1,232 bytes, unchanged since genesis - is being raised to 4,096 bytes. The catch: the extra room only exists inside a brand-new wire format, and the day its feature gate activates, code
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Robinhood Chain: Three Things the Docs Don't Say
Originally published on xroot.dev. I spent a day reading Robinhood Chain with eth_call instead of reading about it. Three things turned up that no documentation page mentions - and one of them is a mistake I made first.Robinhood Chain went live on 1 July
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Solana's 90% Rent Cut: The Economics of SIMD-0437
Originally published on xroot.dev. Every account on Solana carries a refundable SOL deposit - and the network is cutting the price of that deposit by 90%, one feature gate at a time. Step 1 of 5 went live on mainnet on September 3, 2026.SIMD-0437 - its fi
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Zero-Latency DeFi: Parsing Raw Solana AMM Accounts in Rust
Originally published on xroot.dev. In high-frequency Web3 infrastructure, relying on a TypeScript SDK or a third-party pricing API means you are already too late.If you are building an arbitrage bot, a sniper, or a real-time indexer on Solana, reading dat
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Zero-Data-Loss Analytics: Scaling NATS and ClickHouse for Web3 (Part 3)
Originally published on xroot.dev. In , we established our cloud economics and architecture blueprint. In , we built a resilient, zero-copy Rust ingestion service that decodes raw transactions and pumps structured swap events into NATS.Now, we have to sol
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Ingesting the Solana Firehose: High-Throughput Decoding with Rust (Part 2)
Originally published on xroot.dev. In , we established the blueprint. We proved that by optimizing Helius RPC subscriptions and decoupling our ingestion layer from our database using NATS, we can track all Solana swap volume without burning our runway on
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Architecting a Solana Data Pipeline: Economics & System Design (Part 1)
Originally published on xroot.dev. If you have ever tried to track every single swap across Raydium, Orca, and Jupiter in real-time, you already know the painful truth: Solana is simply too fast for traditional Web2 architecture.Standard REST API polling
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