/**
 * Block-explorer URL resolution.
 *
 * Provider plugins resolve a tx hash to a fully-qualified explorer URL during
 * wire→domain mapping. The explorer target is a function of the settling chain,
 * so the map is keyed by chain id rather than by provider.
 */
/**
 * Settling chains a perps tx can be observed on.
 *
 * @public
 */
export declare const ExplorerChainId: {
    readonly ETHEREUM: 1;
    readonly ARBITRUM_ONE: 42161;
    readonly LIGHTER: 304;
    readonly HYPERLIQUID: 999;
};
/**
 * Union of {@link ExplorerChainId} values.
 *
 * @public
 */
export type ExplorerChainId = (typeof ExplorerChainId)[keyof typeof ExplorerChainId];
/**
 * Build a fully-resolved block-explorer URL for a tx on a known chain.
 *
 * @returns The explorer URL, or `undefined` when the hash is empty (no on-chain
 *   tx to link).
 * @public
 */
export declare function explorerTxUrl(chainId: ExplorerChainId, txHash: string | undefined): string | undefined;
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