EVM support status

Catalyst supports EVM smart contracts, but the execution and tooling model is not Ethereum.

Current status (today)

Based on the current node implementation:

• Deploy: supported via CTX2 smart-contract transactions (catalyst_sendRawTransaction)
• Read code: supported via catalyst_getCode(address20)
• Storage reads: supported via catalyst_getStorageAt(address20, slot32)
• Receipts: supported via catalyst_getTransactionReceipt(tx_id)

Canonical references:

• Node deploy doc: catalyst-node-rust/docs/evm-deploy.md
• RPC methods: catalyst-node-rust/crates/catalyst-rpc/src/lib.rs
• SDK deploy helpers: catalyst-sdk/packages/sdk/src/evm/deploy.ts

What’s different vs Ethereum

• Submission method: catalyst_sendRawTransaction (not eth_sendRawTransaction)
• Signing domain: catalyst_getTxDomain (single-call domain separation; includes genesis_hash)
• Cycle/block semantics: some cycles produce no block/LSU; explorers must handle gaps

Verify

After deployment, confirm code exists:

curl -sS -X POST "$RPC_URL" \
  -H 'content-type: application/json' \
  -d "{
    \"jsonrpc\":\"2.0\",
    \"id\":1,
    \"method\":\"catalyst_getCode\",
    \"params\":[\"0x<address20>\"]
  }" | jq -r '.result'