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區塊鏈知識

本文章不定期更新, 如果有錯誤請跟我說,謝謝

ICO 首次公開募股的行為 只是ICO發行的是虛擬貨幣、IPO是發行股票
ICO是什麼意思?如何參加ICO?買虛擬貨幣ICO有風險嗎?
OTC場外交易

  • 返現比例

  • 賣家買幣(稱為 C2C)

  • 入金 法幣轉 USDT

  • 出金 USDT 轉法幣

  • 法幣 = 美金 台幣 人民幣

  • 數字貨幣 例如 數位人民幣

  • 穩定幣 例如USDT 泰達幣

  • 幣幣交易 例如USDT買BTC

  • 加密kline 綠漲 紅跌 ( 跟台股相反 )

現貨賬戶:用來充幣(數字貨幣充值),提幣(將幣提現到其他地方),以及用來做幣幣交易(兩種數字貨幣之間的交易) 槓桿賬戶:用來做槓桿 合約賬戶:用來做合約 法幣賬戶:人民幣出入金用這個賬戶,比如你用人民幣購買數字貨幣的話,購買到的數字貨幣就直接衝入到這個賬戶裡面了 不同賬戶的資金功能是不一樣的,你無法用法幣賬戶的幣去做幣幣交易,所以如果你的幣在法幣賬戶,要想做幣幣交易,那該怎麼辦呢? 就需要你透過資金劃轉功能將你的幣從法幣賬戶劃轉到幣幣賬戶去。 所以一般來說數字貨幣裡面的各個賬戶,如果想在裡面之間進行互相轉賬的話,就需要用到資金劃轉功能了。在不同賬戶之間進行資金劃轉是免費的。

錢包出金,就是把幣安裡的錢轉到別的交易所(假設是max交易所 USDT 交易)

  1. 從max交易所 從 錢包 獲取USDT的錢包地址
  2. 從幣安交易所,在「提現」介面中輸入錢包地址和金額
  3. 去max交易所檢查是否有

5種幣安充值/入金方法與手續費詳解

k線教學

炒幣如何看K線?怎麼看走勢圖?

spot 現貨交易

MetaMask 小狐狸錢包教學:如何使用、下載、從幣安轉帳進去

區塊鏈組成

圖解區塊鏈-起源
圖解區塊鏈1
圖解區塊鏈2

gas limit 一個區塊所能包進去的交易數量
會自動調節

共識機制

比特幣和乙太幣, 每1000個區塊後, 會調整共識難度 ( 會導致挖礦難度也提高 )

硬分岔:改變共識演算法(且所有節點都要更新版本, 更新此規則跟著改。ps:沒更新版本的節點就會不能使用
例如經典乙太幣, 當年交易所被駭客, 所以就修改共識演算法, 硬分岔成兩條, 新的分岔改為ETH(Ethereum), 原本舊的鏈就改為(Ethereum Classic, ETC)
https://www.gate.io/zh-tw/blog_detail/600/thedao-theft-the-story-of-the-ethereum-hard-fork-explained

軟分岔:些微改變
應該是增加一個新flag變數, 某些節點有更新, 看得懂新的flag在幹嘛
沒更新的舊節點, 因為此新flag不在共識演算法檢查範圍內, 就不用改
新舊節點都兼容的一個改版, 大體上是這樣意思

Hash

比特幣採用的hash演算法是 sha256(SHA-2)
比較新的應該都是用 SHA-3

如果比特幣使用的sha256演算法有碰撞可能
可以硬分岔, 改變共識演算法規則, 就可以讓鏈更加穩定

區塊鍊是用hash來識別唯一性
如果同一個區塊, 但hash值不同代表有可能被竄改

區塊鍊,實際使用Merkle Tree(哈希樹)
要驗證此Root hash是否正確
就把每個區塊的資料, 兩兩hans起來, 最後就得到Root hash
優點快速驗證此hash (只需少量的關鍵hans即可驗證全部資料的正確性)

區塊鍊瀏覽器

乙太坊區塊鍊瀏覽器
比特幣區塊鍊瀏覽器

區塊內容

欄位 內容 數值
Block Height 區塊鍊高度, 流水號 從0開始 (0等於創世區塊) 16738041
Status 狀態 1:成功 Finalized
Timestamp 創建區塊時間 Mar-02-2023 02:53:11 AM +UTC
Transactions 區塊內的交易筆數 169
Block Reward 區塊鍊挖礦獎勵 0.0662246242078339 ETH
Difficulty 挖礦難度 58,750,003,716,598,352,816,469
Gas Used 此區塊實際使用的瓦斯數量 (不可超過 gas limit) 29,930,729(99.77%)
Gas Limit 此區塊瓦斯使用上限(代表能包含的交易總數) 30,000,000
Extra Data 智能合約使用的區段 Text

ETH高度16738041的資料

交易內容

欄位 內容 數值
From 交易來源地址 0x95222290DD7278Aa3Ddd389Cc1E1d165CC4BAfe5
To 交易目的地址 0x388C818CA8B9251b393131C08a736A67ccB19297
Value 交易金額 0.042089734807192261 ETH
Transaction Fee 手續費 0.000520838869624207 ETH
Gas Price 價格,設定越高, 礦工越會來挖你這筆交易,就越快成交 23.555645137 Gwei (0.000000023555645137 ETH)
Gas Used 此交易實際使用的瓦斯數量 (不可超過 gas limit) 22,111 (73.7%)
Gas Limit 瓦斯使用上限 ( Gas Used超過此數值就會交易失敗 ) 30,000
Gas Fees Text Text

0xf4a447c7793f646f719e0761d6164c57bbe56fafe8f868a0643d0bb725551850地址的資料

試玩 Blockchain Demo:瞭解區塊鏈如何防止攻擊、挖礦電腦都在算什麼


挖礦

挖礦=猜數字
hash猜到0就有挖礦獎勵 (hash出來的結果, 從左邊看, 一開始設定滿足0000就算挖礦成功, 後面會慢慢演變成越多的0000000)
越多0代表挖礦難度越高

所以bitcoin調整難易度就是
藉由改變block的nonce的數值
導致hash的最左側數值變成0 (圖中範例目前是要滿足4個0)
就代表挖礦成功

當挖礦成功後 廣播給所有節點
並且獲得 coinBase + 交易的手續費 的獎勵
最後並將結果廣播給所有節點



ps: 我看教學網站的hash左側是一堆0, 但實務上看etherscan, 貌似不是這樣, 挖礦的細節還要去看實務上的改變
比特幣(bitcoin是用hash的前導0的數量, 來看是否挖到礦)
乙太坊是用其他方式來判斷是否挖到礦 todo:待查方法

blockchain demo網站


手續費算法

一般標準交易的 Gas Limit 為21000

【新手教學】到底什麼是Gas、Gas Price、Gas Limit

交易

私鑰公鑰

私鑰(2的256次方)(亂數產生) =>使用SPEC256 =>公鑰 =>Hash一次 => 錢包地址

  1. 私鑰簽署任何資訊(文字)或是(交易單)
  2. 將簽署結果廣播到網路上
  3. 讓任何人拿公鑰來驗證 (驗證通過代表是匹配的key)
  4. 無法從公鑰逆推出私鑰
幣種 交易確認次數(區塊鏈高度)
比特幣 至少6次
以太幣 30次

當挖礦時候,每個節點雖然會儲存區塊鏈,但每個節點不一定會立即同步資訊(例如歐洲跟中國)
當兩個節點長度不一樣時,以較長的為主(短的會有自動銷毀機制)
節點設計要追最長的鏈

相關生態網站

etherscan 看幣的內容

錢包

  1. 錢包有分public key(公鑰) 和 private key(私鑰)
  2. 公鑰是錢包地址. 私鑰是要進行支付時的證明,也是證明此錢包的所有權和控制權
  3. 分冷熱錢包,冷錢包(實體的設備, 例如USB) 熱錢包(手機APP 網頁交易所)

交易所錢包,功能上和熱錢包類似,只是比熱錢包更加便於交易,但在安全性上定義不同,
交易所錢包就像是交易所提供的託管帳戶,因此用戶並不擁有此錢包中的加密貨幣私鑰

熱錢包、冷錢包差在哪?最安全的加密貨幣錢包是哪一種

輕錢包

  • dapp 和
  • 不用同步的就是輕錢包
  • 只保存私鑰

測試鏈
rinkeby

DAPP 去中心化應用

DAPP + 智能合約

智能合約

OPCODE 基本加減乘除指令

新手指南丨Token 是什麼?它和 Coin 有什麼區別
Ethereum ERC20 Token Standard 以太坊代幣標準介紹
快速鑄造自己的智能合約幣(Token)



以太坊節點查詢(區塊鏈瀏覽器)
以太坊主網統計
以太坊狀態

節點兩大種類
Parity 和 Geth

區塊鏈兩大應用
Defi NFT

去中心化金融(DeFi)

小狐狸錢包

如何將MetaMask連接到幣安智能鏈?

將小狐狸錢包的地址貼到 水龍頭網站上, 即可領取免費代幣

BNB測試代幣水龍頭

ETH發代幣水龍頭
goerli 水龍頭
sepolia 水龍頭
rinkeby 很多時候offline
ephemery 水龍頭

通常都是把自己的錢包地址貼到水龍頭輸入框內, 在按下送出即可獲得免費代幣(通常一天領一次)

登入後將錢包地址貼在聊天區域內
[Kovan testnet][https://gitter.im/kovan-testnet/faucet]
ETH水龍頭url彙整區

ethscan
faucets 水龍頭s
mainnet

testnet sepolia
用Go来做以太坊开发

AAVE
https://staging.aave.com/faucet/


BTC發代幣水龍頭
比特幣官網測試錢包下載
比特币测试网钱包教學
比特币测试网钱包
bitcoinfaucet水龍頭
bitcoin測試鏈
bitcoin主鏈1
bitcoin主鏈2
golang 实现区块链(Bitcoin)系列1 - 基本原型

正則表達式檢查

chainlist鏈的列表

區塊鏈攻擊

  • 挖礦劫持攻擊 Cryptojacking Attack
  • 雙花攻擊 Double Spending Attack
  • 供應鏈攻擊 Supply Chain Attack
  • 區塊鏈拒絕服務攻擊 BDoS
  • 雙花攻擊 Double Spending Attack

顧名思義,雙花攻擊 (Double Spend Attack) 是一筆錢 花兩次 的意思。雙花攻擊並不會產生新的幣,而是比較像是把花出去的錢拿回來,普通使用者正常使用區塊鏈網路時,基本上不會遇到被動雙花的情境,但對於攻擊者來說有很多攻擊是可以實現的,目前有常見的幾種手法能夠引發雙花攻擊:

51% 算力攻擊(51% Attack)
最常見的雙花攻擊模式,攻擊者佔有超過全網 50% 的算力,在攻擊者控制算力的這段時間,他可以創造一條長於公鏈的側鏈,再根據 最長鏈共識 使得公鏈中的交易回滾,最終實現雙花。

51% 算力攻擊實際範例

假設區域 歐洲算力49% 亞洲算力51% 我在歐洲發起一個轉帳交易, 轉500ETH給某玩家, 然後拿到等值的法幣或物品 然後同時在亞洲拼命的產生區塊, 區塊數目高於歐洲後, 亞洲的區塊會取代歐洲(因為長度最長的會取代短的 ) 所以導致歐洲這筆500ETH轉帳就會被回朔, 但我實際上拿到等值的物品

不過現實中比特幣、以太坊都沒被此攻擊過,因為成本太高了,比特幣的 PoW 共識,攻擊者想要在六次確認的時間內追上最長鏈,幾乎不太可能!

種族攻擊(Race attack)
這種攻擊主要通過控制礦工費(gas),來實現雙花攻擊。攻擊者會同時發送兩筆交易,一筆交易發給自己 (增加更高的礦工費),另一筆發給商家。

由於發送給自己的交易中含有較高的手續費,因此有較高機率被優先打包進最長鏈中,而商家看到攻擊者發送的交易,這時可能已被驗證,故提供商品給攻擊者。

芬尼攻擊(Finney attack)
主要通過控制交易過程中區塊確認的時間來實現雙花攻擊,攻擊對象是一個願意接受未確認交易的商家。

攻擊者用第一筆交易挖掘了一個區塊,但將其隱藏,接著用同一個比特幣發起第二筆交易給願意接受未確認交易的商家,再來攻擊者就把他自己之前挖到的區塊廣播出去,這時候發給自己的交易就先於發給商家的交易。對於攻擊者來說,通過控制區塊的廣播時間,就實現了同一筆 token 的雙花,為了降低這種風險,賣方應在放行貨物前等待至少六個區塊的確認。

幣種比較

名稱 詳細名稱 最小單位 出塊速度 交易確認數 交易完成時間
BTC bitcoin 1 BTC = 0.00000001 (聰)Sat 10分鐘 6個 1小時內
ETH Ethereum 1 Ether = 10 的 18 次方 GWei 15秒內 12個 3分鐘約
USDT Tether 1 Ether = 10 的 18 次方 GWei 15秒內 12個 5分鐘約

BTC 公開金鑰經過 SHA-256 雜湊運算後,再通過 RIPEMD-160 雜湊運算而得,其長度固定為 160 個位元(bits),通常會利用 Base58 將之編碼成一串由英文字母和數字所組成的字串,以方便顯示或散佈,其特徵是皆以「1」或者「3」開頭

協議比較

EIP = Ethereum Improvement Proposals = 社群用來改善Ethereum的提案,提案成功就會納入改版的製程

協議名稱 鏈名稱 原生幣 出塊速度 共識演算法 交易所手續費 鏈上實際手續費
ERC20 Ethereum鏈(以太鏈) ETH Text 10~20USDT 0.0007 ~ 0.008 eth 不等
ERC721 Ethereum鏈(以太鏈) ETH Text
TRC20 泰達幣 3秒一個 3秒一個 1 2

Ethereum 代幣基準 (ERC) 總覽

區塊鏈:以太坊區塊鏈
轉帳手續費(以幣安為例):10 USDT (各交易所不一樣)
最小轉帳數量(以幣安為例):50 USDT (各交易所不一樣)
到帳時間:普通、易堵塞,幾分鐘到幾十分鐘
安全性:普通
轉帳帳號地址開頭:0x

hans 好像搞錯 usdt是泰達幣

乙太方1.0 2.0

刚启动的信标链是什么?对以太坊2.0来说意味着什么?

側鏈和通道狀態

以太坊交易量限制為每秒 15 筆。由於以太坊的受歡迎程度遠遠超過每秒 15 筆交易,這就導致以太坊的交易擁堵,以及 Gas 費的高昂。最終,這也讓許多用戶望而卻步,並限制以太坊目前能夠處理的應用程式類型。所以有三種方式可以解決上述兩個問題

  1. Layer 1 區塊鏈(與以太坊競爭)
  2. Layer 2 網絡(完全與以太坊互補)
  3. 側鏈(部分與以太坊互補)

側鏈是使用雙向錨定關聯於其父鏈(主鏈)的單獨區塊鏈。換句話說,你可以將資產移至側鏈,並再移回父鏈。(就是將主鏈資產在主鏈和側鏈間來回移動)

雙向錨定使得可以在父鏈和子鏈之間以預定的匯率進行資產互換。原始區塊鏈通常成為「主鏈」,其他所有外加的區塊鏈都稱為「側鏈」。區塊鏈平台 Ardor 將其側鏈稱為「子鏈」。 父鏈上的用戶首先必須發送其代幣到一個輸出地址,這些代幣會被鎖定,因此用戶無法在其他地方消費它們。在交易完成之後,會通過跨鏈進行確認,然後等待一段時間,以提高安全性。 在等待期過後,側鏈上會釋放等量的代幣,允許用戶獲取並在此處進行消費。當將資產從側鏈移回主鏈,流程剛好相反。


多鏈、側鏈和 Layer 2,誰才是以太坊擴展方案的未來?

其他雜學

如何取得 polygon 鏈上的 ETH? 最省手續費方法教學

已發布合約

發佈時的已部署的合約
0xbb6fB7B6Ca2A864776d4eaD564B7Ba98c1AaBABf

状态 0x1 交易已打包且执行成功 交易哈希 0x16f80ac1066e84eeeacf826ba81680b819a5ad13fb8b107533824cf51818cbb8 区块哈希 0xcb119e25539f71e5d1e77ef5f8de7018dc0a09a44aca16225c7b629c69fbcedc 区块号 5388598 合约地址 0xbb6fb7b6ca2a864776d4ead564b7ba98c1aababf from 0x8de6b6aa4cda66f94fe7f1b7d252a9d583a23239 to CatToken.(constructor) gas 2585081 gas 交易成本 2563568 gas 输入 0x608...80033 解码输入 {} 解码输出 - 日志 [ { "from": "0xbb6fb7b6ca2a864776d4ead564b7ba98c1aababf", "topic": "0xc7f505b2f371ae2175ee4913f4499e1f2633a7b5936321eed1cdaeb6115181d2", "event": "Initialized", "args": { "0": "18446744073709551615", "version": "18446744073709551615" } } ]

ABI

[ { "inputs": [], "stateMutability": "nonpayable", "type": "constructor" }, { "inputs": [], "name": "ECDSAInvalidSignature", "type": "error" }, { "inputs": [ { "internalType": "uint256", "name": "length", "type": "uint256" } ], "name": "ECDSAInvalidSignatureLength", "type": "error" }, { "inputs": [ { "internalType": "bytes32", "name": "s", "type": "bytes32" } ], "name": "ECDSAInvalidSignatureS", "type": "error" }, { "inputs": [ { "internalType": "address", "name": "spender", "type": "address" }, { "internalType": "uint256", "name": "allowance", "type": "uint256" }, { "internalType": "uint256", "name": "needed", "type": "uint256" } ], "name": "ERC20InsufficientAllowance", "type": "error" }, { "inputs": [ { "internalType": "address", "name": "sender", "type": "address" }, { "internalType": "uint256", "name": "balance", "type": "uint256" }, { "internalType": "uint256", "name": "needed", "type": "uint256" } ], "name": "ERC20InsufficientBalance", "type": "error" }, { "inputs": [ { "internalType": "address", "name": "approver", "type": "address" } ], "name": "ERC20InvalidApprover", "type": "error" }, { "inputs": [ { "internalType": "address", "name": "receiver", "type": "address" } ], "name": "ERC20InvalidReceiver", "type": "error" }, { "inputs": [ { "internalType": "address", "name": "sender", "type": "address" } ], "name": "ERC20InvalidSender", "type": "error" }, { "inputs": [ { "internalType": "address", "name": "spender", "type": "address" } ], "name": "ERC20InvalidSpender", "type": "error" }, { "inputs": [ { "internalType": "uint256", "name": "deadline", "type": "uint256" } ], "name": "ERC2612ExpiredSignature", "type": "error" }, { "inputs": [ { "internalType": "address", "name": "signer", "type": "address" }, { "internalType": "address", "name": "owner", "type": "address" } ], "name": "ERC2612InvalidSigner", "type": "error" }, { "inputs": [], "name": "EnforcedPause", "type": "error" }, { "inputs": [], "name": "ExpectedPause", "type": "error" }, { "inputs": [ { "internalType": "address", "name": "account", "type": "address" }, { "internalType": "uint256", "name": "currentNonce", "type": "uint256" } ], "name": "InvalidAccountNonce", "type": "error" }, { "inputs": [], "name": "InvalidInitialization", "type": "error" }, { "inputs": [], "name": "NotInitializing", "type": "error" }, { "inputs": [ { "internalType": "address", "name": "owner", "type": "address" } ], "name": "OwnableInvalidOwner", "type": "error" }, { "inputs": [ { "internalType": "address", "name": "account", "type": "address" } ], "name": "OwnableUnauthorizedAccount", "type": "error" }, { "anonymous": false, "inputs": [ { "indexed": true, "internalType": "address", "name": "owner", "type": "address" }, { "indexed": true, "internalType": "address", "name": "spender", "type": "address" }, { "indexed": false, "internalType": "uint256", "name": "value", "type": "uint256" } ], "name": "Approval", "type": "event" }, { "anonymous": false, "inputs": [], "name": "EIP712DomainChanged", "type": "event" }, { "anonymous": false, "inputs": [ { "indexed": false, "internalType": "uint64", "name": "version", "type": "uint64" } ], "name": "Initialized", "type": "event" }, { "anonymous": false, "inputs": [ { "indexed": true, "internalType": "address", "name": "previousOwner", "type": "address" }, { "indexed": true, "internalType": "address", "name": "newOwner", "type": "address" } ], "name": "OwnershipTransferred", "type": "event" }, { "anonymous": false, "inputs": [ { "indexed": false, "internalType": "address", "name": "account", "type": "address" } ], "name": "Paused", "type": "event" }, { "anonymous": false, "inputs": [ { "indexed": true, "internalType": "address", "name": "from", "type": "address" }, { "indexed": true, "internalType": "address", "name": "to", "type": "address" }, { "indexed": false, "internalType": "uint256", "name": "value", "type": "uint256" } ], "name": "Transfer", "type": "event" }, { "anonymous": false, "inputs": [ { "indexed": false, "internalType": "address", "name": "account", "type": "address" } ], "name": "Unpaused", "type": "event" }, { "inputs": [], "name": "DOMAIN_SEPARATOR", "outputs": [ { "internalType": "bytes32", "name": "", "type": "bytes32" } ], "stateMutability": "view", "type": "function" }, { "inputs": [ { "internalType": "address", "name": "owner", "type": "address" }, { "internalType": "address", "name": "spender", "type": "address" } ], "name": "allowance", "outputs": [ { "internalType": "uint256", "name": "", "type": "uint256" } ], "stateMutability": "view", "type": "function" }, { "inputs": [ { "internalType": "address", "name": "spender", "type": "address" }, { "internalType": "uint256", "name": "value", "type": "uint256" } ], "name": "approve", "outputs": [ { "internalType": "bool", "name": "", "type": "bool" } ], "stateMutability": "nonpayable", "type": "function" }, { "inputs": [ { "internalType": "address", "name": "account", "type": "address" } ], "name": "balanceOf", "outputs": [ { "internalType": "uint256", "name": "", "type": "uint256" } ], "stateMutability": "view", "type": "function" }, { "inputs": [ { "internalType": "uint256", "name": "value", "type": "uint256" } ], "name": "burn", "outputs": [], "stateMutability": "nonpayable", "type": "function" }, { "inputs": [ { "internalType": "address", "name": "account", "type": "address" }, { "internalType": "uint256", "name": "value", "type": "uint256" } ], "name": "burnFrom", "outputs": [], "stateMutability": "nonpayable", "type": "function" }, { "inputs": [], "name": "decimals", "outputs": [ { "internalType": "uint8", "name": "", "type": "uint8" } ], "stateMutability": "view", "type": "function" }, { "inputs": [], "name": "eip712Domain", "outputs": [ { "internalType": "bytes1", "name": "fields", "type": "bytes1" }, { "internalType": "string", "name": "name", "type": "string" }, { "internalType": "string", "name": "version", "type": "string" }, { "internalType": "uint256", "name": "chainId", "type": "uint256" }, { "internalType": "address", "name": "verifyingContract", "type": "address" }, { "internalType": "bytes32", "name": "salt", "type": "bytes32" }, { "internalType": "uint256[]", "name": "extensions", "type": "uint256[]" } ], "stateMutability": "view", "type": "function" }, { "inputs": [ { "internalType": "address", "name": "initialOwner", "type": "address" } ], "name": "initialize", "outputs": [], "stateMutability": "nonpayable", "type": "function" }, { "inputs": [ { "internalType": "address", "name": "to", "type": "address" }, { "internalType": "uint256", "name": "amount", "type": "uint256" } ], "name": "mint", "outputs": [], "stateMutability": "nonpayable", "type": "function" }, { "inputs": [], "name": "name", "outputs": [ { "internalType": "string", "name": "", "type": "string" } ], "stateMutability": "view", "type": "function" }, { "inputs": [ { "internalType": "address", "name": "owner", "type": "address" } ], "name": "nonces", "outputs": [ { "internalType": "uint256", "name": "", "type": "uint256" } ], "stateMutability": "view", "type": "function" }, { "inputs": [], "name": "owner", "outputs": [ { "internalType": "address", "name": "", "type": "address" } ], "stateMutability": "view", "type": "function" }, { "inputs": [], "name": "pause", "outputs": [], "stateMutability": "nonpayable", "type": "function" }, { "inputs": [], "name": "paused", "outputs": [ { "internalType": "bool", "name": "", "type": "bool" } ], "stateMutability": "view", "type": "function" }, { "inputs": [ { "internalType": "address", "name": "owner", "type": "address" }, { "internalType": "address", "name": "spender", "type": "address" }, { "internalType": "uint256", "name": "value", "type": "uint256" }, { "internalType": "uint256", "name": "deadline", "type": "uint256" }, { "internalType": "uint8", "name": "v", "type": "uint8" }, { "internalType": "bytes32", "name": "r", "type": "bytes32" }, { "internalType": "bytes32", "name": "s", "type": "bytes32" } ], "name": "permit", "outputs": [], "stateMutability": "nonpayable", "type": "function" }, { "inputs": [], "name": "renounceOwnership", "outputs": [], "stateMutability": "nonpayable", "type": "function" }, { "inputs": [], "name": "symbol", "outputs": [ { "internalType": "string", "name": "", "type": "string" } ], "stateMutability": "view", "type": "function" }, { "inputs": [], "name": "totalSupply", "outputs": [ { "internalType": "uint256", "name": "", "type": "uint256" } ], "stateMutability": "view", "type": "function" }, { "inputs": [ { "internalType": "address", "name": "to", "type": "address" }, { "internalType": "uint256", "name": "value", "type": "uint256" } ], "name": "transfer", "outputs": [ { "internalType": "bool", "name": "", "type": "bool" } ], "stateMutability": "nonpayable", "type": "function" }, { "inputs": [ { "internalType": "address", "name": "from", "type": "address" }, { "internalType": "address", "name": "to", "type": "address" }, { "internalType": "uint256", "name": "value", "type": "uint256" } ], "name": "transferFrom", "outputs": [ { "internalType": "bool", "name": "", "type": "bool" } ], "stateMutability": "nonpayable", "type": "function" }, { "inputs": [ { "internalType": "address", "name": "newOwner", "type": "address" } ], "name": "transferOwnership", "outputs": [], "stateMutability": "nonpayable", "type": "function" }, { "inputs": [], "name": "unpause", "outputs": [], "stateMutability": "nonpayable", "type": "function" } ]
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