t, n := binary.Uvarint(b)
		if n <= 0 {
			break
		}
		b = b[n:]

		typ := ChecksumType(t)
		length := typ.RawByteLen()
		if length == 0 || len(b) < length {
			break
		}
		// Skip main checksum
		b = b[length:]
		if !typ.Is(ChecksumIncludesMultipart) {
			continue
		}
		parts, n := binary.Uvarint(b)
		if n <= 0 {
			break
		}
		if len(res) == 0 {