OpenTimeStamps your ethereum blockchain

3 steps:

1. export a block & create OTS file
2. few hours later, add blockchain info
3. verify

Step 1:

• get last block index: i
• export j (with j=i-15) block & save it in block_j.txt
• create block_j.state with STAMPED ${timestamp} content
• create a stamp

Step 2:

• list all block_j.state
• foreach with STAMPED content do upgrade OTS
  if upgrade succeeded change state to UPGRADED ${timestamp}
  if failure check if period > 48h then change state to ERROR & move to error directory

Step 3:

• list all block_j.state
• foreach with UPGRADED content do verify OTS
  if verify succeeded change state to VERIFIED & move to output directory
  if failure check if period > 48h then change state to ERROR & move to error directory