}
		uploadedParts = append(uploadedParts, minio.CompletePart{
			PartNumber:     pInfo.PartNumber,
			ETag:           pInfo.ETag,
			ChecksumCRC32:  pInfo.ChecksumCRC32,
			ChecksumCRC32C: pInfo.ChecksumCRC32C,
			ChecksumSHA1:   pInfo.ChecksumSHA1,
			ChecksumSHA256: pInfo.ChecksumSHA256,
		})
	}
	userMeta := map[string]string{

		// AWS does not appear to append part number on this API call.
		if len(chkSums) > 0 {
			OA.Checksum = &objectAttributesChecksum{
				ChecksumCRC32:  strings.Split(chkSums["CRC32"], "-")[0],
				ChecksumCRC32C: strings.Split(chkSums["CRC32C"], "-")[0],
				ChecksumSHA1:   strings.Split(chkSums["SHA1"], "-")[0],
				ChecksumSHA256: strings.Split(chkSums["SHA256"], "-")[0],
			}
		}
	}