Error return value of `fmt.Scanln` is not checked (errcheck)

S1012: should use `time.Since` instead of `time.Now().Sub` (gosimple)

S1021: should merge variable declaration with assignment on next line (gosimple)

S1038: should use fmt.Printf instead of fmt.Println(fmt.Sprintf(...)) (but don't forget the newline) (gosimple)

S1038: should use fmt.Printf instead of fmt.Println(fmt.Sprintf(...)) (but don't forget the newline) (gosimple)

ineffectual assignment to err (ineffassign)

S1004: should use bytes.Equal(logsToBloom(logs).Bytes(), header.Bloom.Bytes()) instead (gosimple)

field `log` is unused (unused)

SA1019: rand.Seed has been deprecated since Go 1.20 and an alternative has been available since Go 1.0: As of Go 1.20 there is no reason to call Seed with a random value. Programs that call Seed with a known value to get a specific sequence of results should use New(NewSource(seed)) to obtain a local random generator. (staticcheck)