eth_getCode

Inspects the compiled bytecode of smart contracts deployed on the Bittensor network. This method is essential for analyzing AI model contracts, subnet verification, and understanding the decentralized AI infrastructure on Bittensor's specialized blockchain architecture.

Parameters

Parameter	Type	Required	Description
address	string	Yes	The 20-byte contract address (0x-prefixed hex string)
blockNumber/blockTag	string	Yes	Block number in hex (e.g., "0x1b4") or block tag: "latest", "earliest", "pending", "safe", "finalized"

Block Tags

• latest - Most recent block in the canonical chain
• earliest - Genesis block
• pending - Pending state/transactions
• safe - Latest safe head block (Bittensor)
• finalized - Latest finalized block (Bittensor)

Returns

Returns the contract bytecode as a hex-encoded string. Externally Owned Accounts (EOAs) return "0x".

Type	Description
string	Hex-encoded contract bytecode starting with "0x". Returns "0x" for EOA addresses

Code Examples

cURL

# Get bytecode for TAO token contract on Bittensor
curl -X POST https://api-bittensor-mainnet.n.dwellir.com/YOUR_API_KEY \
  -H "Content-Type: application/json" \
  -d '{
    "jsonrpc": "2.0",
    "method": "eth_getCode",
    "params": [
      "0x77E06c9eD04D8A16801ec4b1cB9d3eb0e68fd9C6",
      "latest"
    ],
    "id": 1
  }'

JavaScript

// Get bytecode for Bittensor subnet registration contract
const response = await fetch('https://api-bittensor-mainnet.n.dwellir.com/YOUR_API_KEY', {
  method: 'POST',
  headers: { 'Content-Type': 'application/json' },
  body: JSON.stringify({
    jsonrpc: '2.0',
    method: 'eth_getCode',
    params: [
      '0xA1B2C3D4E5F6789012345678901234567890ABCD',
      'latest'
    ],
    id: 1
  })
});

const data = await response.json();
console.log('Subnet contract bytecode:', data.result);

// Analyze contract deployment for AI infrastructure
if (data.result === '0x') {
  console.log('Address is an EOA - likely a validator or miner wallet');
} else {
  console.log('Contract detected - analyzing AI model or subnet logic');
  
  // Check for AI-specific contract patterns
  const bytecode = data.result;
  if (bytecode.includes('deadbeef')) {
    console.log('Potential AI model weights storage detected');
  }
  
  console.log(`Contract size: ${(bytecode.length - 2) / 2} bytes`);
}

Python

import requests
import json

# Get bytecode for Bittensor validator staking contract
url = "https://api-bittensor-mainnet.n.dwellir.com/YOUR_API_KEY"
payload = {
    "jsonrpc": "2.0",
    "method": "eth_getCode",
    "params": [
        "0x1234567890ABCDEF1234567890ABCDEF12345678",  # Example validator contract
        "latest"
    ],
    "id": 1
}

response = requests.post(url, json=payload)
result = response.json()

if result['result'] == '0x':
    print("Address is an EOA - validator/miner wallet")
else:
    bytecode = result['result']
    print(f"Validator contract bytecode: {bytecode[:100]}...")
    print(f"Contract size: {(len(bytecode) - 2) // 2} bytes")
    
    # Analyze for Bittensor-specific patterns
    if "5441" in bytecode:  # "TAO" in hex
        print("Detected: TAO token interaction")
    elif "subnet" in bytes.fromhex(bytecode[2:]).decode('utf-8', errors='ignore'):
        print("Detected: Subnet management contract")
    elif "neural" in bytes.fromhex(bytecode[2:]).decode('utf-8', errors='ignore'):
        print("Detected: Neural network contract")
    else:
        print("Standard Bittensor infrastructure contract")

Response Example

{
  "jsonrpc": "2.0",
  "id": 1,
  "result": "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}

Important Notes

EOA vs Contract Addresses

• Contract addresses: Return the deployed smart contract bytecode
• EOA addresses: Return "0x" as they contain no executable code
• Important for distinguishing between validator wallets and subnet contracts

Use Cases

• Subnet analysis: Examine subnet registration and consensus contracts
• Validator verification: Verify validator staking and reward contracts
• AI model contracts: Analyze neural network and model storage contracts
• Mining contract analysis: Study proof-of-work and mining reward mechanisms

Bittensor-Specific Considerations

• Bittensor combines blockchain with AI/ML for decentralized intelligence
• Specialized contracts for neural networks, subnets, and validator consensus
• TAO token integration for incentive mechanisms
• Unique architecture supporting distributed AI model training and inference

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Need help? Contact our support team or check the Bittensor documentation.