();        // Slide 0     av.umsg(interpret("sc0"));     l.get(0).value("<br/> Block Number: 0 <hr/> Nonce: 000000 <hr/> Data: First Block <hr/> Previous: <br/> 0000000000000000 <hr/> Hash: <br/> ?");     l.layout();     av.step();      // Slide 0     av.umsg(interpret("sc0"));     l.get(0).value("<br/> Block Number: 0  <hr/> Nonce: 000000 <hr/> Data: First Block <hr/> Previous: <br/> 0000000000000000 <hr/> Hash: <br/> 