Lootcoinの勇者物語(3)

4 minute read

Published: January 03, 2026

もはや、Lootcoinの勇者物語というか、ぼくがLootcoin dAppsについて知りたいことを勝手に調査してるだけのブログになりつつある気がしますが、いいのです。これは必要なことなのです。(確信) というわけでこれからはLootcoin調査用レポジトリを作成して勇者物語を進めていきます。

Lootcoinレポジトリの作成

┌──(stardust✨stardust)-[~]
└─$ git clone git@github.com:stardustdotbox/Lootcoin.git

.envファイルを作成する

┌──(stardust✨stardust)-[~/Lootcoin]
└─$ cat > .env
RPC_URL=https://rpc.soneium.org
PRIVATE_KEY=0xあなたの秘密鍵

.envファイルを読み込む

┌──(stardust✨stardust)-[~/Lootcoin]
└─$ export $(cat .env | xargs)

LOOTCOINのCLAIMトランザクションを再現する

https://soneium.blockscout.com/tx/0xa4d8aec04682dc4913b91e09e11c99994a9b6d613064d0af9b8af3a21f59bb91

調査対象トランザクションを環境変数に設定する

┌──(stardust✨stardust)-[~/Lootcoin]
└─$ export TX_HASH=0xa4d8aec04682dc4913b91e09e11c99994a9b6d613064d0af9b8af3a21f59bb91

トランザクションを再実行してトレースを取得

┌──(stardust✨stardust)-[~/Lootcoin]
└─$ cast run $TX_HASH --rpc-url $RPC_URL --trace-printer
(snip)
Traces:
  [91099] 0x21Be1D69A77eA5882aCcD5c5319Feb7AC3854751::claimRewards()
    ├─ [17244] 0x9317841C2e9F6BCb44119C184152cfb1EF79034a::mint(0x53869B88306EB505f0fC66DaE482D42033F85253, 512415477321905475675 [5.124e20])
    │   ├─ emit Transfer(param0: 0x0000000000000000000000000000000000000000, param1: 0x53869B88306EB505f0fC66DaE482D42033F85253, param2: 512415477321905475675 [5.124e20])
    │   └─ ← [Stop]
    ├─ [8444] 0x9317841C2e9F6BCb44119C184152cfb1EF79034a::mint(0xB755B1E6418D34D5533267aF10322d9B79B93dd3, 26969235648521340825 [2.696e19])
    │   ├─ emit Transfer(param0: 0x0000000000000000000000000000000000000000, param1: 0xB755B1E6418D34D5533267aF10322d9B79B93dd3, param2: 26969235648521340825 [2.696e19])
    │   └─ ← [Stop]
    ├─ emit RewardsClaimed(param0: 0x53869B88306EB505f0fC66DaE482D42033F85253, param1: 539384712970426816500 [5.393e20])
    └─ ← [Stop]
Transaction successfully executed.
Gas used: 92251

トランザクションの詳細を取得

┌──(stardust✨stardust)-[~/Lootcoin]
└─$ cast tx $TX_HASH --rpc-url $RPC_URL --json | jq '{from, to, input}'
{
  "from": "0x53869b88306eb505f0fc66dae482d42033f85253",
  "to": "0x21be1d69a77ea5882accd5c5319feb7ac3854751",
  "input": "0x372500ab"
}

呼び出された関数を特定

┌──(stardust✨stardust)-[~/Lootcoin]
└─$ INPUT_DATA=$(cast tx $TX_HASH --rpc-url $RPC_URL --json | jq -r '.input')

┌──(stardust✨stardust)-[~/Lootcoin]
└─$ FUNCTION_SELECTOR=$(echo $INPUT_DATA | head -c 10)

┌──(stardust✨stardust)-[~/Lootcoin]
└─$ cast 4byte $FUNCTION_SELECTOR
claimRewards()

同じ関数を同じパラメータで呼び出す

┌──(stardust✨stardust)-[~/Lootcoin]
└─$ cast send 0x21Be1D69A77eA5882aCcD5c5319Feb7AC3854751 \
  "claimRewards()" \
  --rpc-url $RPC_URL \
  --private-key $PRIVATE_KEY

blockHash            0x3e78fa307d8c61274bb76f65de5dbf74419f8d537034a11672c37ebec68da88c
blockNumber          17157043
contractAddress      
cumulativeGasUsed    2259561
effectiveGasPrice    73936
from                 0x53869B88306EB505f0fC66DaE482D42033F85253
gasUsed              92251
logs                 [{"address":"0x9317841c2e9f6bcb44119c184152cfb1ef79034a","topics":["0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef","0x0000000000000000000000000000000000000000000000000000000000000000","0x00000000000000000000000053869b88306eb505f0fc66dae482d42033f85253"],"data":"0x0000000000000000000000000000000000000000000000096ea417387f4baff5","blockHash":"0x3e78fa307d8c61274bb76f65de5dbf74419f8d537034a11672c37ebec68da88c","blockNumber":"0x105cbb3","blockTimestamp":"0x69592105","transactionHash":"0xf4feea46c19941952f86cf1eb86d6c58c2ca44625c7cc8f9a29ce08dfc15ee64","transactionIndex":"0xe","logIndex":"0x1f","removed":false},{"address":"0x9317841c2e9f6bcb44119c184152cfb1ef79034a","topics":["0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef","0x0000000000000000000000000000000000000000000000000000000000000000","0x000000000000000000000000b755b1e6418d34d5533267af10322d9b79b93dd3"],"data":"0x0000000000000000000000000000000000000000000000007f161c2b6503fbc9","blockHash":"0x3e78fa307d8c61274bb76f65de5dbf74419f8d537034a11672c37ebec68da88c","blockNumber":"0x105cbb3","blockTimestamp":"0x69592105","transactionHash":"0xf4feea46c19941952f86cf1eb86d6c58c2ca44625c7cc8f9a29ce08dfc15ee64","transactionIndex":"0xe","logIndex":"0x20","removed":false},{"address":"0x21be1d69a77ea5882accd5c5319feb7ac3854751","topics":["0xfc30cddea38e2bf4d6ea7d3f9ed3b6ad7f176419f4963bd81318067a4aee73fe","0x00000000000000000000000053869b88306eb505f0fc66dae482d42033f85253"],"data":"0x000000000000000000000000000000000000000000000009edba3363e44fabbe","blockHash":"0x3e78fa307d8c61274bb76f65de5dbf74419f8d537034a11672c37ebec68da88c","blockNumber":"0x105cbb3","blockTimestamp":"0x69592105","transactionHash":"0xf4feea46c19941952f86cf1eb86d6c58c2ca44625c7cc8f9a29ce08dfc15ee64","transactionIndex":"0xe","logIndex":"0x21","removed":false}]
logsBloom            0x00000000000000000000000000000000008000000000000000000000000000040000000000000000000000000000000000000000000000000000000000000000000000000000000000000008000000000001000000000000000000000000000010000000020000000000000000000800000020000000000000000010000004000000000000000040000000000000000000000080000000000000000000000000000000000000000002000000008000000000000000000000000200000000008000000002000000000000000000000000000000000000000000000000400020800000000000000000080000000000000000000000000000000000000000000000
root                 
status               1 (success)
transactionHash      0xf4feea46c19941952f86cf1eb86d6c58c2ca44625c7cc8f9a29ce08dfc15ee64
transactionIndex     14
type                 2
blobGasPrice         
blobGasUsed          40000
to                   0x21Be1D69A77eA5882aCcD5c5319Feb7AC3854751
daFootprintGasScalar 400
l1BaseFeeScalar      9736
l1BlobBaseFee        3146636
l1BlobBaseFeeScalar  1540079
l1Fee                1197660242
l1GasPrice           45774281
l1GasUsed            1600

メソッド一覧を表示する

┌──(stardust✨stardust)-[~/Lootcoin]
└─$ curl -s "https://soneium.blockscout.com/api?module=contract&action=getabi&address=0x21Be1D69A77eA5882aCcD5c5319Feb7AC3854751" | \
  jq -r '.result' | \
  jq -r '.[] | select(.type == "function") | .name + "(" + (.inputs | map(.type) | join(",")) + ")"'
BASE_CHECK_IN_POINTS()
CHECK_IN_STREAK_MULTIPLIER()
HALVING_INTERVAL()
INITIAL_LOOTCOIN_PER_BLOCK()
LOOT_TYPES()
ONE_DAY()
REWARDS_PRECISION()
STARTER_FACILITY_INDEX()
STARTER_MINER_INDEX()
STREAK_THRESHOLD()
acquiredStarterMiner(address)
addFacility(uint256,uint256,bool,uint256)
addMiner(uint256,uint256,uint256,bool,address)
addSecondaryMarketForMiner(uint256,uint256)
blocksUntilNextHalving()
burnPct()
buyMiner(uint256,uint256,uint8)
buyNewFacility()
changeFacilityCost(uint256,uint256)
changeMinerCost(uint256,uint256)
checkIn(address)
checkinsEnabled()
claimRewards()
consecutiveCheckInDays(address)
cooldown()
cumulativeLootcoinPerHash()
facilities(uint256)
facilityCount()
feeRecipient()
gameplayActive()
getCurrentConsecutiveCheckInDays(address)
getFreeStarterMiner(uint256,uint8)
getLootcoinPerBlock()
getPlayerMinersPaginated(address,uint256,uint256)
getReferrals(address)
giftInitialFacility(address,address)
hasCheckedInToday(address)
initialFacilityPrice()
initializedStarterFacility(address)
lastCheckInDay(address)
lastFacilityUpgradeTimestamp(address)
lastRewardBlock()
lootcoin()
minerSecondHandMarket(uint256)
miners(uint256)
miningHasStarted()
owner()
ownerToFacility(address)
pausedAtBlock()
pendingRewards(address)
playerHashrate(address)
playerLootcoinDebt(address)
playerLootcoinPerBlock(address)
playerMinersId(uint256)
playerMinersOwned(address)
playerOccupiedCoords(address,uint256,uint8)
playerPendingRewards(address)
playerPoints(address)
purchaseInitialFacility(address)
randomNumberCallback(uint256,uint256)
referralBonusPaid(address)
referralFee()
referrals(address)
referredUsers(address,uint256)
renounceOwnership()
sellMiner(uint256)
setBurnPct(uint256)
setCheckinsEnabled(bool)
setCooldown(uint256)
setFeeRecipient(address)
setGameplayActive(bool)
setInitialFacilityPrice(uint256)
setLootcoin(address)
setReferralFee(uint256)
setVRFAddress(address)
startBlock()
timeUntilNextFacilityUpgrade(address)
toggleFacilityProduction(uint256,bool)
toggleMinerProduction(uint256,bool)
totalHashrate()
transferOwnership(address)
uniqueMinerCount()
vrfAddress()
vrfSystem()
withdraw()
withdrawErc20(address,uint256)
withdrawLootcoin(uint256)

Lootcoinメソッドの実行

┌──(stardust✨stardust)-[~/Lootcoin]
└─$ cast call 0x21Be1D69A77eA5882aCcD5c5319Feb7AC3854751 "lootcoin()" --rpc-url $RPC_URL
0x0000000000000000000000009317841c2e9f6bcb44119c184152cfb1ef79034a

Owner()

┌──(stardust✨stardust)-[~/Lootcoin]
└─$ cast call 0x21Be1D69A77eA5882aCcD5c5319Feb7AC3854751 "owner()"  --rpc-url $RPC_URL
0x000000000000000000000000d33367e2aef56d700c1918c8a79fba54c0c9aa57

pendingRewards(address)

┌──(stardust✨stardust)-[~/Lootcoin]
└─$ cast call 0x21Be1D69A77eA5882aCcD5c5319Feb7AC3854751 "pendingRewards(address)" 0x53869B88306EB505f0fC66DaE482D42033F85253 --rpc-url $RPC_URL
0x000000000000000000000000000000000000000000000000747cad7a4490322a
┌──(stardust✨stardust)-[~/Lootcoin]
└─$ cast --to-dec 0x747cad7a4490322a
8393774546159677994

playerHashrate(address)

┌──(stardust✨stardust)-[~/Lootcoin]
└─$ cast call 0x21Be1D69A77eA5882aCcD5c5319Feb7AC3854751 "playerHashrate(address)" 0x53869B88306EB505f0fC66DaE482D42033F85253 --rpc-url $RPC_URL
0x0000000000000000000000000000000000000000000000000000000000000730
┌──(stardust✨stardust)-[~/Lootcoin]
└─$ cast --to-dec 0x730
1840

playerPoints(address)

┌──(stardust✨stardust)-[~/Lootcoin]
└─$ cast call 0x21Be1D69A77eA5882aCcD5c5319Feb7AC3854751 "playerPoints(address)" 0x53869B88306EB505f0fC66DaE482D42033F85253 --rpc-url $RPC_URL
0x00000000000000000000000000000000000000000000000000000000000004b0
┌──(stardust✨stardust)-[~/Lootcoin]
└─$ cast --to-dec 0x04b0
1200

getReferrals(address)(address[])

┌──(stardust✨stardust)-[~/Lootcoin]
└─$ cast call 0x21Be1D69A77eA5882aCcD5c5319Feb7AC3854751 "getReferrals(address)(address[])" 0x53869B88306EB505f0fC66DaE482D42033F85253 --rpc-url $RPC_URL
[0xe8E0af09F80cAf07D962D6BECD7117923f6a8c43, 0xE6cC5e3EBB07B5156ba3aF510B8c6cA19804d88E, 0xF870067e1A2Dd4a1964761c4438874A9b9bF2D5a, 0x485387f0E5a3f27c827Fa873277A7b42270C7565]

BlockScountのREAD/Write conctactで触るのが一番便利

https://soneium.blockscout.com/address/0x21Be1D69A77eA5882aCcD5c5319Feb7AC3854751?tab=read_write_contract

Lootcoinの一日に稼げる$LOOTの表記に嘘はないのか？

Soneinasコミュニティからこんな疑問が出たので、調査してみます。実はこのために色々しらべていたわけですが。。。w

調査時の私の日毎に稼げる$LOOTに関する記述

- YOU ARE LOOTING 369.7862 $LOOT PER DAY

一時間に一度ClaimRewardsメソッドを呼ぶスクリプトを作成

#!/bin/bash

# Lootcoin claimRewards() 自動実行スクリプト
# 1時間ごとに claimRewards() を実行し、トランザクションHASHと実施時刻を表示します

# スクリプトのディレクトリに移動
SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
cd "$SCRIPT_DIR" || exit 1

# .envファイルを読み込む
if [ ! -f .env ]; then
    echo "エラー: .envファイルが見つかりません"
    exit 1
fi

export $(cat .env | grep -v '^#' | xargs)

# 環境変数の確認
if [ -z "$RPC_URL" ] || [ -z "$PRIVATE_KEY" ]; then
    echo "エラー: RPC_URL または PRIVATE_KEY が設定されていません"
    exit 1
fi

# コントラクトアドレス
CONTRACT_ADDRESS="0x21Be1D69A77eA5882aCcD5c5319Feb7AC3854751"

# ログファイル（オプション）
LOG_FILE="claim_rewards.log"

echo "=========================================="
echo "Lootcoin claimRewards() 自動実行スクリプト"
echo "開始時刻: $(date '+%Y-%m-%d %H:%M:%S')"
echo "=========================================="
echo ""

# メインループ
while true; do
    # 現在時刻を取得
    TIMESTAMP=$(date '+%Y-%m-%d %H:%M:%S')
    
    echo "[$TIMESTAMP] claimRewards() を実行中..."
    
    # cast sendコマンドを実行し、出力を取得
    OUTPUT=$(cast send "$CONTRACT_ADDRESS" \
        "claimRewards()" \
        --rpc-url "$RPC_URL" \
        --private-key "$PRIVATE_KEY" 2>&1)
    
    EXIT_CODE=$?
    
    if [ $EXIT_CODE -eq 0 ]; then
        # トランザクションHASHを抽出
        TX_HASH=$(echo "$OUTPUT" | grep -oP 'transactionHash\s+\K0x[a-fA-F0-9]+' || echo "見つかりませんでした")
        
        echo "[$TIMESTAMP] ✓ 成功"
        echo "  トランザクションHASH: $TX_HASH"
        echo ""
        
        # ログファイルに記録（オプション）
        if [ -n "$LOG_FILE" ]; then
            echo "[$TIMESTAMP] トランザクションHASH: $TX_HASH" >> "$LOG_FILE"
        fi
    else
        echo "[$TIMESTAMP] ✗ エラーが発生しました"
        echo "  エラー内容:"
        echo "$OUTPUT" | head -5
        echo ""
        
        # ログファイルに記録
        if [ -n "$LOG_FILE" ]; then
            echo "[$TIMESTAMP] エラー: $OUTPUT" >> "$LOG_FILE"
        fi
    fi
    
    # 1時間（3600秒）待機
    echo "次の実行まで1時間待機します..."
    echo "----------------------------------------"
    sleep 3600
done

実行してみる

┌──(stardust✨stardust)-[~/Lootcoin]
└─$ ./claim_rewards.sh 
==========================================
Lootcoin claimRewards() 自動実行スクリプト
開始時刻: 2026-01-04 00:48:25
==========================================

[2026-01-04 00:48:25] claimRewards() を実行中...
[2026-01-04 00:48:25] ✓ 成功
  トランザクションHASH: 0x51aa13206f468546a20ee222ccb1142d966d987c825fb817556ca64d30e92122

次の実行まで1時間待機します...
----------------------------------------
[2026-01-04 01:48:29] claimRewards() を実行中...
[2026-01-04 01:48:29] ✓ 成功
  トランザクションHASH: 0x808d873cfe7f261565713f6380a66b24d9ec8e551d33674f454b152befa3e575

一時間で稼げた$LOOTを確認する

24時間で稼げる$LOOTを計算する

┌──(stardust✨stardust)-[~/Lootcoin]
└─$ echo '8.0550934 * 24' | bc
193.3222416

本来369LOOT稼げるはずなのに193LOOTしか稼げない計算になる。。。

┌──(stardust✨stardust)-[~/Lootcoin]
└─$ echo '193 / 369' | bc -l
.52303523035230352303

つまり本来の52%しか実際にはLOOTを稼げないという計算になる。Lootmotoさん、どういうことですか？（ ´ー｀）y―┛~~

参考文献

Lootcoin
Lootcoin BlackPaper.pdf
https://x.com/Lootcointech
https://www.coingecko.com/en/coins/lootcoin
https://github.com/stardustdotbox/Lootcoin
https://www.stardust.box/posts/2026/01/Lootcoin-Hero-Story-1/
https://www.stardust.box/posts/2026/01/Lootcoin-Hero-Story-2/

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