Add Datachain Rope (chainId: 271828)

[KazeONGUENE]

Summary

This PR adds Datachain Rope to the Ethereum chains list.

Chain Details

Property	Value
Chain ID	314159 (0x4CB2F)
Name	Datachain Rope
Symbol	FAT
Decimals	18
RPC URL	https://erpc.datachain.network
WebSocket	https://ws.datachain.network
Explorer	https://dcscan.io
Website	https://datachain.network

RPC Verification

All RPC endpoints are live and responding:

curl -X POST https://erpc.datachain.network \
  -H "Content-Type: application/json" \
  -d '{"jsonrpc":"2.0","method":"eth_chainId","params":[],"id":1}'

# Response: {"jsonrpc": "2.0", "id": 1, "result": "0x4cb2f"}

About Datachain Rope

Datachain Rope is an EVM-compatible Layer 1 blockchain featuring:

• Post-quantum cryptography (OES)
• Testimony consensus mechanism
• 1-second block time
• Native bridges to Ethereum, XDC, and Polkadot

Icon

Icon will be added in a follow-up commit once pinned to IPFS.
The SVG logo is available at: https://datachain.network

Checklist

• Chain ID is unique (314159)
• RPC endpoints are live and responding
• Block explorer is accessible
• File follows EIP-155 JSON format
• Icon to be added (IPFS upload pending)

[github-actions]

You successfully submitted a PR! Due to the amount of PRs coming in: we will only look at PRs that the CI is happy with. We can also not hold your hand getting the CI green - just look how others that where merged did it and RTFM. So as long as there is any CI check that reports an error - no human will look at this. You might be able to ask for some support after supporting the project - e.g. by sending funds to lists.eth. When you fixed things after a requested change - then you also need to (re-)request a review.

[KazeONGUENE]

Rebasing to trigger CI checks. This PR adds Datachain Rope mainnet (Chain ID: 271828) which has been live since January 2026.

• RPC endpoint verified: https://erpc.datachain.network
• Explorer active: https://dcscan.io
• Documentation: https://datachain.network/docs

Ready for review when CI passes.