h := algo.New()
	return &streamingBitrotReader{
		disk:       disk,
		data:       data,
		volume:     volume,
		filePath:   filePath,
		tillOffset: ceilFrac(tillOffset, shardSize)*int64(h.Size()) + tillOffset,
		h:          h,
		shardSize:  shardSize,
		hashBytes:  make([]byte, h.Size()),
	}