Resolve chain ID 2020 collision: Ronin Mainnet is the canonical chain & add Ronin Saigon Testnet

[dwi]

Summary

• Resolve the chain ID 2020 collision in favor of Ronin Mainnet. The same ID is also claimed by Alastria, but on-chain block 1 timestamps show Ronin produced its first block ~394 days before Alastria did. Keep Ronin as the canonical entry for 2020 in this registry.

• Add Ronin Saigon Testnet

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Chain ID collision

Block explorers:

• Ronin: https://app.roninchain.com/block/1
• Alastria: https://b-network.alastria.izer.tech/block/1

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On-chain evidence: block 1 timestamps

Ronin’s first produced block (block 1) predates Alastria’s block 1 by ~394 days.

Ronin Mainnet — block 1

curl -s -X POST https://ronin.drpc.org -H "Content-Type: application/json" -d '{"jsonrpc":"2.0","method":"eth_getBlockByNumber","params":["0x1", false],"id":1}'

Output (abbreviated):

{
  "jsonrpc": "2.0",
  "result": {
    "number": "0x1",
    "timestamp": "0x600ea241",
    "hash": "0x5027d9836eabbd069a3b089f128caf9cf11506cd3849fb3ac43a8e2188b238c2",
    "miner": "0xf224beff587362a88d859e899d0d80c080e1e812"
  },
  "id": 1
}

Decoded timestamp: 0x600ea241 → 1611571777 → 2021-01-25 10:49:37 UTC

---

Alastria — block 1

curl -s -X POST https://b-network.alastria.izer.tech/api/eth-rpc -H "Content-Type: application/json" -d '{"jsonrpc":"2.0","method":"eth_getBlockByNumber","params":["0x1", false],"id":1}'

Output (abbreviated):

{
  "jsonrpc": "2.0",
  "result": {
    "number": "0x1",
    "timestamp": "0x621617e9",
    "hash": "0x6df79d87726706d334dcdfedeff765211fb72f4d8b18250df699be99dd303594",
    "miner": "0x4b3cc96cc615ab4d46ac0bc8fff5cb4fa77cac92"
  },
  "id": 1
}

Decoded timestamp: 0x621617e9 → 1645615081 → 2022-02-23 11:18:01 UTC

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Comparison

Network	Block	Timestamp (hex)	Timestamp (UTC)
Ronin Mainnet	1	0x600ea241	2021-01-25 10:49:37
Alastria	1	0x621617e9	2022-02-23 11:18:01