複製證明參數下載地址
官方下載地址:https://proofs.filecoin.io/
https://github.com/filecoin-project/go-paramfetch
ipfs get /ipns/proofs.filecoin.io -o ./parameters/
fielcoin提供了命令 ,獲取複製證明參數
lotus-shed proving-params=“32GiB”
程序如下:
var fetchParamCmd = &cli.Command{
Name: "fetch-params",
Usage: "Fetch proving parameters",
Flags: []cli.Flag{
&cli.StringFlag{
Name: "proving-params",
Usage: "download params used creating proofs for given size, i.e. 32GiB",
},
},
Action: func(cctx *cli.Context) error {
sectorSizeInt, err := units.RAMInBytes(cctx.String("proving-params"))
if err != nil {
return err
}
sectorSize := uint64(sectorSizeInt)
err = paramfetch.GetParams(lcli.ReqContext(cctx), build.ParametersJson(), sectorSize)
if err != nil {
return xerrors.Errorf("fetching proof parameters: %w", err)
}
return nil
},
}
可以看到程序 直接調的 是 包 github.com/filecoin-project