get_singlecheckpoint.sh

#!/bin/zsh
EXPLORERAPI=https://explorer.nycoin.community/api
BLOCKHIGHT=$(curl -s "$EXPLORERAPI/getblockcount")
calc(){ awk "BEGIN{ print $* }" ;}
echo "["
for i in {16376..$BLOCKHIGHT..16376}
do
  HASH=$(curl -s "$EXPLORERAPI/getblockhash?index=$i")
  sleep 1
  DATA=$(curl -s "$EXPLORERAPI/getblock?hash=$HASH")
  BITS=$(echo $DATA | jq -r ' .bits')
  TIME=$(echo $DATA | jq -r ' .time')
  EXP="$((16#${BITS:0:2}))"
  C=$(echo $BITS | sed 's/^..//')
  COEF=$((16#${C}))

  echo "  ["
  echo "    \"$HASH\","
  echo "    $(calc "($COEF*(2^(8*($EXP-3))))"),"
  echo "    $TIME"
  echo "  ],"
  sleep 1
done
echo "]"