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注意: 此页面尚未翻译成中文。以下内容为英文原版。 
type OrphanFilter: {
  "hash": string;
  "number": number;
  "orphan": "drop-block";
 } | {
  "orphan": "drop-transaction";
  "other": {
     "blockHash": string;
     "blockNumber": number;
     "hash": string;
    };
  "tx": {
     "blockHash": string;
     "blockNumber": number;
     "hash": string;
    };
 } | {
  "orphan": "reorder-transaction";
  "other": {
     "blockHash": string;
     "blockNumber": number;
     "hash": string;
    };
  "tx": {
     "blockHash": string;
     "blockNumber": number;
     "hash": string;
    };
 } | {
  "log": {
     "address": string;
     "blockHash": string;
     "blockNumber": number;
     "data": string;
     "index": number;
     "topics": ReadonlyArray<string>;
     "transactionHash": string;
    };
  "orphan": "drop-log";
};
An Orphan Filter allows detecting when an orphan block has resulted in dropping a block or transaction or has resulted in transactions changing order. Not currently fully supported.

​
Source

providers/provider.ts:2525