区块链基础
Nodes, clients and RPC providers
An app can use a chain without independently verifying all the data it displays.
研究 · 历史 · 参考
全部条目 A–Z · 10 / 15
438 · 文章与参考资料
加密历史
Nomad trusted-root failure
A 2022 Nomad upgrade left a zero root trusted, allowing copied calls to process messages as valid.
诈骗模式
OAuth-consent phishing
A hostile application asks for access through a real identity-provider screen.
加密历史
OneCoin without a public blockchain
OneCoin sold a cryptocurrency story while criminal cases established a global fraud.
加密历史
OneCoin, 2026: asset recovery is not the same as repaying every victim
The compensation announcement describes recovered assets and a claims process, not a reversal of the original losses.
加密历史
OneCoin: a cryptocurrency story without the promised system
Recruitment commissions, fabricated mining and an operator-controlled price: the evidence behind the OneCoin fraud and Greenwood’s conviction.
市场结构
Opaque insurance funds
A displayed fund balance hides ownership, withdrawals and cross-product liabilities.
公链与网络
Optimism: fault proofs and withdrawal assumptions
A challenge mechanism is one part of a deployed rollup's security model.
区块链基础
Optimistic rollups: claims, challenges and the exit route
The security argument depends on what can be challenged and who can actually submit the challenge.
DeFi 与治理
Oracle freshness: a valid number can still be unusable
Price source, update conditions and failure handling belong in the same review.
市场结构
Oracle override power
An administrator or small signer set can replace the price that drives credit and liquidation.
市场与激励 · DeFi risk mechanics
Oracles and liquidation: when a price becomes an instruction
A number becomes dangerous when a contract uses it to decide borrowing capacity, settlement or liquidation.
DeFi 与治理
Oracles: which price controls the contract?
A price feed has sources, update conditions and failure modes.
DeFi 与治理
Overcollateralised debt positions
A borrower locks assets worth more than debt under protocol valuations.
KOL 与推广
Paid promotion: preserve the incentive trail
A public post and a private allocation can tell different parts of the story.
KOL 与推广
Paid promotion: what the audience needs to know
Payment, token exposure and the presentation of the message all affect how an endorsement is understood.
名称、身份与网络内容
Passkeys and crypto wallets: easier login, a new recovery map
The origin-bound credential, the account’s authority and the backup system need separate inspection.
Web 基础
Password storage: why hashing and encryption serve different jobs
A login service usually needs to verify a password, not recover its original text.
钱包与安全
Permanent delegates: a control the holder cannot revoke
Mint-level authority changes what holding a token actually means.
诈骗模式
Permit phishing
An offchain signature authorises a token allowance without an immediate gas payment.
钱包与安全
Permit2: token approval and downstream signatures are separate permissions
Review the token's allowance to Permit2 and the spender authority granted through Permit2.
市场结构
Perpetual funding: a transfer between position holders
Funding helps align a perpetual contract with its reference market, but it also changes the cost of holding a trade.
加密历史
PlusToken investment scheme
PlusToken marketed a wallet and investment return while authorities described a large pyramid scheme.
KOL 与推广
PnL screenshots without cash reconciliation
A screenshot omits deposits, withdrawals, leverage, open losses and failed wallets.