tags["pool"] = strconv.Itoa(er.poolIndex)
	tags["merrs"] = joinErrs(errs)
	tags["derrs"] = fmt.Sprintf("%v", dataErrsByPart)
	if m.IsValid() {
		tags["sz"] = strconv.FormatInt(m.Size, 10)
		tags["mt"] = m.ModTime.Format(iso8601Format)
		tags["d:p"] = fmt.Sprintf("%d:%d", m.Erasure.DataBlocks, m.Erasure.ParityBlocks)
	} else {
		tags["invalid"] = "1"

that can be found in the LICENSE file. //go:build !purego // SHA256 block routine. See sha256block.go for Go equivalent. // // The algorithm is detailed in FIPS 180-4: // // https://csrc.nist.gov/publications/fips/fips180-4/fips-180-4.pdf // // Wt = Mt; for 0 <= t <= 15 // Wt = SIGMA1(Wt-2) + SIGMA0(Wt-15) + Wt-16; for 16 <= t <= 63 // // a = H0 // b = H1 // c = H2 // d = H3 // e = H4 // f = H5 // g = H6 // h = H7 // // for t = 0 to 63 { // T1 = h + BIGSIGMA1(e) + Ch(e,f,g) + Kt + Wt // T2 = BIGSIGMA0(a)...