Description

Welcome to the billboard, you can post an advertisement on the billboard chain, and the more coin you deposit the higher your advertisement ranking will be.

Attachment Playground

RPC: http://54.177.154.38:26657

Goal

Send a successful CaptureTheFlag type transaction.

Instruction

1. Gen&add player private key

$ billboardcli keys mnemonic --unsafe-entropy
> your team token md5 + 32 * "0"

$ echo "your mnemonic here" | billboardcli keys add $KEY --recover

2. Check balance, should be none-zero

$ billboardcli query account $ADDRESS --node $RPC

3. Post an advertisement

$ billboardcli tx billboard create-advertisement $ID $CONTENT --from $KEY --chain-id mainnet --fees 10ctc --node $RPC

Hint

• The playground website is only used for AD display and TX hash submission (Not a web challenge !!!)
• For fairness, we have banned some query RPC https://github.com/iczc/tendermint/commit/42111f2a780d7910fcc7adac61d65628d0fa4ea7