feat: add Superposition chain (#2838)

.changeset/cyan-chefs-compare.md

@@ -0,0 +1,5 @@
+---
+"viem": patch
+---
+
+Added Superposition chain.

src/chains/definitions/superposition.ts

@@ -0,0 +1,17 @@
+import { defineChain } from '../../utils/chain/defineChain.js'
+
+export const superposition = /*#__PURE__*/ defineChain({
+ id: 55244,
+ name: 'Superposition',
+ nativeCurrency: { name: 'Ether', symbol: 'ETH', decimals: 18 },
+ rpcUrls: {
+ default: { http: ['https://rpc.superposition.so'] },
+ },
+ blockExplorers: {
+ default: {
+ name: 'Superposition Explorer',
+ url: 'https://explorer.superposition.so',
+ },
+ },
+ testnet: false,
+})

src/chains/index.ts

@@ -327,6 +327,7 @@ export { silicon } from './definitions/silicon.js'
 export { siliconSepolia } from './definitions/siliconSepolia.js'
 export { stratis } from './definitions/stratis.js'
 export { superlumio } from './definitions/superlumio.js'
+export { superposition } from './definitions/superposition.js'
 export { swan } from './definitions/swan.js'
 export { swanProximaTestnet } from './definitions/swanProximaTestnet.js'
 export { swanSaturnTestnet } from './definitions/swanSaturnTestnet.js'