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  • $ZKC is deployed on Ethereum Mainnet and Base Mainnet.
  • To use $ZKC in the Boundless market as Proving Collateral on Base mainnet, $ZKC must be bridged from Ethereum mainnet to Base mainnet.
Before accepting a proof request, provers must lock $ZKC as collateral in the market, typically at least ~10x the request’s maximum fee. If the proof is not fulfilled on time, the prover is slashed; 50% of the collateral is burned permanently, and the remaining 50% is reassigned onchain as a bounty for another prover to complete the work. This system provides a stronger economic guarantee of proof delivery. At the same time, as the request volume grows, the total amount of $ZKC locked increases by a multiple of ~10x, reducing the total circulating supply. Multi Chain Proving

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Bridging $ZKC

$ZKC is deployed at:
  • Ethereum Mainnet: 0x000006c2A22ff4A44ff1f5d0F2ed65F781F55555
  • (Bridged) Base: 0xAA61bB7777bD01B684347961918f1E07fBbCe7CF

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Bridging using Base’s Native Bridges

To bridge $ZKC from Ethereum mainnet to Base mainnet, see the Base documentation for bridging assets to Base.

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Manual Bridging using cast

To start, make sure to have cast installed. This will require installing Foundry. Next, export the PRIVATE_KEY for the address holding the $ZKC tokens: 
export PRIVATE_KEY=0x1234...5678
Set the AMOUNT and ETH_MAINNET_RPC_URL environment variables: 
export AMOUNT=10000000000000000000 # 10 ZKC
ETH_MAINNET_RPC_URL="https://"
with the amount to be bridged, and a valid RPC URL for Ethereum mainnet respectively. Next, approve the Base bridge to spend $AMOUNT tokens: 
cast send 0x000006c2A22ff4A44ff1f5d0F2ed65F781F55555 \
  "approve(address,uint256)" \
  0x3154Cf16ccdb4C6d922629664174b904d80F2C35 \
  $AMOUNT \
  --private-key $PRIVATE_KEY \
  --rpc-url $ETH_MAINNET_RPC_URL
Finally, bridge $AMOUNT tokens: 
cast send 0x3154Cf16ccdb4C6d922629664174b904d80F2C35 \
  "bridgeERC20(address,address,uint256,uint32,bytes)" \
  0x000006c2A22ff4A44ff1f5d0F2ed65F781F55555 \
  0xAA61bB7777bD01B684347961918f1E07fBbCe7CF \
  $AMOUNT \
  300000 \
  0x \
  --private-key $PRIVATE_KEY \
  --rpc-url $ETH_MAINNET_RPC_URL