Live
All Chains

Choose your
apprenticeship

9 blockchains. 130+ modules. Every chain gets the same pedagogical depth — failure-first learning, one real project, every error explained. The concepts differ. The quality doesn't.

Available Codexes

9 chains, each with its own lore

Solana
Solana
Proof of History + Tower BFT. Token-2022 mastery.
16 modules · ~6 hours
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XRPL
XRPL
FBA Consensus. Compliance-native DeFi.
15 modules · ~6 hours
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Algorand
Algorand
Pure Proof-of-Stake. Instant finality. First on-chain post-quantum signatures.
17 modules · ~6.5 hours
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Ethereum
Ethereum (Coming Soon)
The world's programmable blockchain.
16 modules · ~6 hours
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NEAR
NEAR (Coming Soon)
Sharded for scale. Named for humans.
16 modules · ~6 hours
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Starknet
Starknet (Coming Soon)
Zero-knowledge. Infinite scale.
16 modules · ~6 hours
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Hedera
Hedera (Coming Soon)
Enterprise-grade. Predictable fees.
16 modules · ~6 hours
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XRPL AlphaNet
XRPL AlphaNet (Coming Soon)
First-ever native XRPL smart contracts + post-quantum cryptography (ML-DSA).
16 modules · ~6 hours
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Canton
Canton (Coming Soon)
Privacy-preserving for finance. Daml smart contracts. DTCC + Goldman + Cboe consortium.
16 modules · ~6 hours
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Comparison

How the chains compare

Chain Consensus Language Native Token Unique Feature
SolanaProof of History + Tower BFT (Alpenglow next)Rust (Anchor v1.0+) / TypeScriptSOLToken-2022 with 17 extensions, sub-second confirmation
XRPLFederated Byzantine AgreementJavaScript (xrpl.js)XRPProtocol-level compliance (Permissioned DEX)
AlgorandPure Proof-of-Stake (VRF)Algorand Python (Puya) / PyTeal / TEALALGOInstant finality, no forking, on-chain post-quantum (falcon_verify, Sept 2025)
Ethereum (Coming Soon)Gasper (Casper FFG + LMD-GHOST)SolidityETHLargest ecosystem, EVM standard
NEAR (Coming Soon)Nightshade Sharding + DoomslugRust / AssemblyScriptNEARHuman-readable accounts, chain signatures
Starknet (Coming Soon)STARK Validity RollupCairoSTRKNative account abstraction, ZK proofs
Hedera (Coming Soon)Hashgraph aBFTSolidity (HSCS) / SDKHBARUSD-denominated fees, governed council
XRPL AlphaNet (Coming Soon)FBA Consensus (XRPL Labs experimental)XRPL native smart contractsXRPFirst-ever XRPL native L1 smart contracts (Nov 2025) + CRYSTALS-Dilithium / NIST ML-DSA post-quantum (Dec 2025)
Canton (Coming Soon)Validator BFT (sync domains)DamlCanton Coin (CC)Sub-transaction privacy + composable institutional sub-networks (Goldman/Cboe/DTCC consortium)
Guidance

Which chain should I learn first?

01
I'm a Web2 developer, new to blockchain

Start with Ethereum. The largest ecosystem, the most jobs, and the most learning resources. Your Solidity lore transfers to every EVM chain.

02
I want to build enterprise applications

Start with Hedera or XRPL. Both offer predictable fees, governed networks, and compliance-native features built for institutions.

03
I'm interested in cutting-edge cryptography

Start with Starknet. STARK proofs, Cairo, and native account abstraction represent the frontier of blockchain technology.

04
I want the best developer experience

Start with NEAR. Human-readable accounts, Rust contracts, and chain abstraction make for the most developer-friendly experience in blockchain.

The lore of every chain
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