QR Coin 拍卖：在 Base 区块链上竞标二维码 URL 展示位 | 区块链拍卖工具

qrcoin by bankrbot/clawdbot-skill

1 周安装量

984 GitHub Stars

GitHub

安装命令

npx skills add https://github.com/bankrbot/clawdbot-skill --skill qrcoin

自动化区块链营销

🇨🇳中文介绍

QR Coin 拍卖

参与 QR Coin 在 Base 区块链上的拍卖。QR Coin 允许您竞标在二维码上显示 URL——当拍卖结束时，出价最高者的 URL 将被编码到二维码中。

合约 (Base 主网)

合约	地址
QR 拍卖合约	`0x7309779122069EFa06ef71a45AE0DB55A259A176`
USDC	`0x833589fCD6eDb6E08f4c7c32D4f71b54bdA02913`

工作原理

每场拍卖持续固定时间（约 24 小时）
竞标者使用 USDC 提交 URL（6 位小数 — 1 USDC = 1000000 单位）
创建新出价需花费约 11.11 USDC（createBidReserve）
为现有出价追加资金需花费约 1.00 USDC（contributeReserve）
出价最高者获胜；获胜者的 URL 将被编码到二维码中
失败者获得退款；获胜者收到 QR 代币

拍卖状态查询

注意：以下示例使用 https://mainnet.base.org（公共 RPC）。您可以根据需要替换为您自己的 RPC 端点。

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获取当前代币 ID

在出价前，请务必先查询此信息以获取活跃的拍卖 ID。

curl -s -X POST https://mainnet.base.org \
  -H "Content-Type: application/json" \
  -d '{"jsonrpc":"2.0","method":"eth_call","params":[{"to":"0x7309779122069EFa06ef71a45AE0DB55A259A176","data":"0x7d9f6db5"},"latest"],"id":1}' \
  | jq -r '.result' | xargs printf "%d\n"

获取拍卖结束时间

# 首先获取当前代币 ID，然后在此处使用
TOKEN_ID=329  # 替换为 currentTokenId() 的结果
TOKEN_ID_HEX=$(printf '%064x' $TOKEN_ID)

curl -s -X POST https://mainnet.base.org \
  -H "Content-Type: application/json" \
  -d '{"jsonrpc":"2.0","method":"eth_call","params":[{"to":"0x7309779122069EFa06ef71a45AE0DB55A259A176","data":"0xa4d0a17e'"$TOKEN_ID_HEX"'"},"latest"],"id":1}' \
  | jq -r '.result' | xargs printf "%d\n"

# 创建出价保留金（约 11.11 USDC）
curl -s -X POST https://mainnet.base.org \
  -H "Content-Type: application/json" \
  -d '{"jsonrpc":"2.0","method":"eth_call","params":[{"to":"0x7309779122069EFa06ef71a45AE0DB55A259A176","data":"0x5b3bec22"},"latest"],"id":1}' \
  | jq -r '.result' | xargs printf "%d\n" | awk '{print $1/1000000 " USDC"}'

# 追加资金保留金（约 1.00 USDC）
curl -s -X POST https://mainnet.base.org \
  -H "Content-Type: application/json" \
  -d '{"jsonrpc":"2.0","method":"eth_call","params":[{"to":"0x7309779122069EFa06ef71a45AE0DB55A259A176","data":"0xda5a5cf3"},"latest"],"id":1}' \
  | jq -r '.result' | xargs printf "%d\n" | awk '{print $1/1000000 " USDC"}'

通过 Bankr 进行交易

QR Coin 拍卖需要在 Base 上进行 USDC 交易。使用 Bankr 来执行这些操作——Bankr 处理：

函数签名解析和参数编码
Gas 估算
交易签名和提交
确认监控

步骤 1：批准 USDC（一次性操作）

在出价前，批准拍卖合约可以花费 USDC：

Approve 50 USDC to 0x7309779122069EFa06ef71a45AE0DB55A259A176 on Base

步骤 2：创建新出价

为您的 URL 创建新出价：

函数 : createBid(uint256 tokenId, string url, string name) 合约 : 0x7309779122069EFa06ef71a45AE0DB55A259A176 成本 : 约 11.11 USDC

重要：务必先查询 currentTokenId() 以获取活跃的拍卖 ID。

Bankr 的示例提示：

Send transaction to 0x7309779122069EFa06ef71a45AE0DB55A259A176 on Base
calling createBid(329, "https://example.com", "MyName")

步骤 3：为现有出价追加资金

为现有 URL 的出价追加资金：

函数 : contributeToBid(uint256 tokenId, string url, string name) 合约 : 0x7309779122069EFa06ef71a45AE0DB55A259A176 成本 : 每次追加约 1.00 USDC

Bankr 的示例提示：

Send transaction to 0x7309779122069EFa06ef71a45AE0DB55A259A176 on Base
calling contributeToBid(329, "https://grokipedia.com/page/debtreliefbot", "MerkleMoltBot")

函数	选择器	参数
`currentTokenId()`	`0x7d9f6db5`	—
`auctionEndTime(uint256)`	`0xa4d0a17e`	tokenId
`createBidReserve()`	`0x5b3bec22`	—
`contributeReserve()`	`0xda5a5cf3`	—
`createBid(uint256,string,string)`	`0xf7842286`	tokenId, url, name
`contributeToBid(uint256,string,string)`	`0x7ce28d02`	tokenId, url, name
`approve(address,uint256)`	`0x095ea7b3`	spender, amount

错误	含义	解决方案
`RESERVE_PRICE_NOT_MET`	出价金额低于最低要求	检查保留价格
`URL_ALREADY_HAS_BID`	URL 已有出价	改用 `contributeToBid`
`BID_NOT_FOUND`	URL 没有现有出价	改用 `createBid`
`AUCTION_OVER`	当前拍卖已结束	等待下一场拍卖
`AUCTION_NOT_STARTED`	拍卖尚未开始	等待拍卖开始
`INSUFFICIENT_ALLOWANCE`	USDC 未获批准	先批准 USDC

查询 currentTokenId() — 获取活跃的拍卖 ID
检查拍卖状态 — 验证剩余时间
批准 USDC — 为拍卖合约进行一次性批准
决定操作 :
- 新 URL : 使用 createBid（约 11.11 USDC）
- 支持现有 URL : 使用 contributeToBid（约 1.00 USDC）
监控 — 关注是否被出价超越，并在需要时追加资金
领取 — 获胜者收到 QR 代币；失败者获得退款

平台 : https://qrcoin.fun
拍卖合约 : BaseScan
Base 上的 USDC : BaseScan

从小额开始 : 为现有出价追加资金（约 1 USDC）以熟悉流程
检查时间 : 拍卖有固定的结束时间；请相应规划
监控出价 : 其他人可能出价超过您；请关注拍卖
使用 Bankr : 让 Bankr 处理交易签名和执行
指定 Base : 使用 Bankr 时务必包含 "on Base"

💡 专业提示 : 为现有出价追加资金比创建新出价更便宜。在创建新出价前，请检查是否已有人为您的 URL 出价。

🇺🇸English

QR Coin Auction

Participate in QR Coin auctions on Base blockchain. QR Coin lets you bid to display URLs on QR codes — the highest bidder's URL gets encoded when the auction ends.

Contracts (Base Mainnet)

Contract	Address
QR Auction	`0x7309779122069EFa06ef71a45AE0DB55A259A176`
USDC	`0x833589fCD6eDb6E08f4c7c32D4f71b54bdA02913`

How It Works

Each auction runs for a fixed period (~24h)
Bidders submit URLs with USDC (6 decimals — 1 USDC = 1000000 units)
Creating a new bid costs ~11.11 USDC (createBidReserve)
Contributing to an existing bid costs ~1.00 USDC (contributeReserve)
Highest bid wins; winner's URL is encoded in the QR code
Losers get refunded; winners receive QR tokens

Auction Status Queries

Note : The examples below use https://mainnet.base.org (public RPC). You can substitute your own RPC endpoint if preferred.

Get Current Token ID

Always query this first to get the active auction ID before bidding.

curl -s -X POST https://mainnet.base.org \
  -H "Content-Type: application/json" \
  -d '{"jsonrpc":"2.0","method":"eth_call","params":[{"to":"0x7309779122069EFa06ef71a45AE0DB55A259A176","data":"0x7d9f6db5"},"latest"],"id":1}' \
  | jq -r '.result' | xargs printf "%d\n"

Get Auction End Time

# First get the current token ID, then use it here
TOKEN_ID=329  # Replace with result from currentTokenId()
TOKEN_ID_HEX=$(printf '%064x' $TOKEN_ID)

curl -s -X POST https://mainnet.base.org \
  -H "Content-Type: application/json" \
  -d '{"jsonrpc":"2.0","method":"eth_call","params":[{"to":"0x7309779122069EFa06ef71a45AE0DB55A259A176","data":"0xa4d0a17e'"$TOKEN_ID_HEX"'"},"latest"],"id":1}' \
  | jq -r '.result' | xargs printf "%d\n"

Get Reserve Prices

# Create bid reserve (~11.11 USDC)
curl -s -X POST https://mainnet.base.org \
  -H "Content-Type: application/json" \
  -d '{"jsonrpc":"2.0","method":"eth_call","params":[{"to":"0x7309779122069EFa06ef71a45AE0DB55A259A176","data":"0x5b3bec22"},"latest"],"id":1}' \
  | jq -r '.result' | xargs printf "%d\n" | awk '{print $1/1000000 " USDC"}'

# Contribute reserve (~1.00 USDC)
curl -s -X POST https://mainnet.base.org \
  -H "Content-Type: application/json" \
  -d '{"jsonrpc":"2.0","method":"eth_call","params":[{"to":"0x7309779122069EFa06ef71a45AE0DB55A259A176","data":"0xda5a5cf3"},"latest"],"id":1}' \
  | jq -r '.result' | xargs printf "%d\n" | awk '{print $1/1000000 " USDC"}'

Transactions via Bankr

QR Coin auctions require USDC transactions on Base. Use Bankr to execute these — Bankr handles:

Function signature parsing and parameter encoding
Gas estimation
Transaction signing and submission
Confirmation monitoring

Step 1: Approve USDC (One-Time)

Before bidding, approve the auction contract to spend USDC:

Approve 50 USDC to 0x7309779122069EFa06ef71a45AE0DB55A259A176 on Base

Step 2: Create a New Bid

To start a new bid for your URL:

Function : createBid(uint256 tokenId, string url, string name) Contract : 0x7309779122069EFa06ef71a45AE0DB55A259A176 Cost : ~11.11 USDC

Important : Always query currentTokenId() first to get the active auction ID.

Example prompt for Bankr:

Send transaction to 0x7309779122069EFa06ef71a45AE0DB55A259A176 on Base
calling createBid(329, "https://example.com", "MyName")

Step 3: Contribute to Existing Bid

To add funds to an existing URL's bid:

Function : contributeToBid(uint256 tokenId, string url, string name) Contract : 0x7309779122069EFa06ef71a45AE0DB55A259A176 Cost : ~1.00 USDC per contribution

Example prompt for Bankr:

Send transaction to 0x7309779122069EFa06ef71a45AE0DB55A259A176 on Base
calling contributeToBid(329, "https://grokipedia.com/page/debtreliefbot", "MerkleMoltBot")

Function Selectors

Function	Selector	Parameters
`currentTokenId()`	`0x7d9f6db5`	—
`auctionEndTime(uint256)`	`0xa4d0a17e`	tokenId
`createBidReserve()`	`0x5b3bec22`	—
`contributeReserve()`

Error Codes

Error	Meaning	Solution
`RESERVE_PRICE_NOT_MET`	Bid amount below minimum	Check reserve prices
`URL_ALREADY_HAS_BID`	URL already has a bid	Use `contributeToBid` instead
`BID_NOT_FOUND`	URL doesn't have existing bid	Use `createBid` instead
`AUCTION_OVER`	Current auction has ended

Typical Workflow

QuerycurrentTokenId() — Get the active auction ID
Check auction status — Verify time remaining
Approve USDC — One-time approval for the auction contract
Decide action :
- New URL : Use createBid (~11.11 USDC)
- Support existing URL : Use contributeToBid (~1.00 USDC)
Monitor — Watch for outbids and contribute more if needed
Claim — Winners receive QR tokens; losers get refunds

Tips

Start small : Contribute to existing bids (~1 USDC) to learn the flow
Check timing : Auctions have fixed end times; plan accordingly
Monitor bids : Others can outbid you; watch the auction
Use Bankr : Let Bankr handle transaction signing and execution
Specify Base : Always include "on Base" when using Bankr

💡 Pro Tip : Contributing to an existing bid is cheaper than creating a new one. Check if someone already bid for your URL before creating a new bid.

Weekly Installs

Repository

bankrbot/clawdbot-skill

GitHub Stars

984

First Seen

1 day ago

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