OrphanFilter

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