2026-08-02 Domingo

Notícias de cripto - Página 113

Mantenha-se a par do mercado de cripto. Notícias em tempo real, análises, preços, histórias em alta e análise de especialistas — tudo num só lugar.

Opening Claude's Brain Is Useless; The True Key to the AI Black Box Lies in Ontology Engineering

"Dissecting Claude's Brain Is Futile: The Real Key to the AI Black Box Lies in Ontology Engineering" This article critiques the limitations of Anthropic's "J-Space" research, which attempts to explain AI models by observing their internal neural activation patterns, akin to fMRI brain scans. While this "internalist" approach offers unprecedented visibility into model states, it fundamentally conflates observability with true explainability. The core issue is that understanding a model's output requires more than tracing neural activity; it necessitates examining the meaning of the information it processes—its relationship to the world, semantic norms, and human cognitive frameworks. The author proposes a paradigm shift: moving from a neuroscience-inspired focus on the model itself to an "information ontology" approach centered on the knowledge the model handles. Drawing from Kant's philosophical categories, the argument posits that true explainability lies in structuring and understanding information within a formal conceptual framework, not in peering into the "black box." The practical application of this theory is ontology engineering. Ontologies provide a structured, computable framework for knowledge, serving as a semantic anchor for model outputs. The article details a bidirectional synergy: Large Language Models (LLMs) can automate and scale ontology construction, while ontologies, in turn, enhance AI explainability. They act as a verification framework, allowing model reasoning to be traced back to defined concepts, properties, and relationships. This transforms explainability from the impossible task of making neural networks transparent into the achievable engineering goal of making their outputs and impacts understandable, traceable, and accountable. The future of AI explainability, therefore, lies not in explaining the model's internal mechanics but in explaining and governing the knowledge structures and real-world effects of its outputs.

marsbit07/17 07:39

Opening Claude's Brain Is Useless; The True Key to the AI Black Box Lies in Ontology Engineering

marsbit07/17 07:39

$1.43B in Bitcoin and Ethereum Options Expire: Will Traders Brace for the Next Move?

A significant options expiry on July 17 saw 19,000 Bitcoin contracts (notional value $1.2B) and 123,000 Ethereum contracts ($230M) expire. Bitcoin's put-call ratio was 0.9 with a max pain point of $63,000, while Ethereum's elevated put-call ratio of 1.61 indicated stronger bearish hedging sentiment. BTC has been range-bound between $60K-$65K, with key gamma exposure levels at $64K and $70K. ETH's gamma is more dispersed between $1,825 and $2,000. Current market positioning shows caution, with traders using small, out-of-the-money bets and no clear directional conviction. In short-term price action, Bitcoin, trading near $62,777, faces immediate support around $62,631 and resistance near $62,859. A breakdown could push it below $62.5K. Ethereum, down over 5% to ~$1,825, risks falling toward $1,782 support, with further downside potentially below $1,700. A bullish reversal for ETH would need to break through the $1,867 zone to target above $1,900. Overall, market sentiment remains subdued amid broader equity corrections.

TheNewsCrypto07/17 07:13

$1.43B in Bitcoin and Ethereum Options Expire: Will Traders Brace for the Next Move?

TheNewsCrypto07/17 07:13

Revenue Soars 16%, Restaurant Chain Credits Bitcoin: Real Growth or PR Stunt?

Steak ’n Shake, a U.S. fast-food chain, attributed a 16% year-over-year increase in July same-store sales partly to its adoption of Bitcoin as a payment method. However, the company has not disclosed key data points, such as the actual number of Bitcoin transactions, total sales volume processed in Bitcoin, or the exact amount saved on payment processing fees. This lack of detailed information makes it difficult to isolate Bitcoin's direct impact on sales growth from other contributing factors like marketing campaigns, menu updates, promotional discounts, and operational changes. While the brand highlights the cost advantage of Bitcoin transactions—estimated to be about 50% cheaper per transaction than credit card fees—it has not provided evidence that a significant volume of sales actually uses this payment method. Steak ’n Shake’s parent company, Biglari Holdings, had already reported strong sales growth earlier in the year, driven by factors such as product upgrades and operational improvements, with no mention of Bitcoin in prior shareholder communications. The article questions whether the primary value of Bitcoin for Steak ’n Shake lies more in its public relations and branding benefits—attracting crypto enthusiasts and generating media attention—rather than in tangible business gains. To validate Bitcoin's role as a genuine growth driver and provide a replicable model for other merchants, the company would need to share comprehensive data, including Bitcoin transaction share, customer retention metrics, and detailed cost savings, allowing for a clearer analysis of its true contribution to revenue.

Foresight News07/17 07:01

Revenue Soars 16%, Restaurant Chain Credits Bitcoin: Real Growth or PR Stunt?

Foresight News07/17 07:01

BTC Needs to Soar 92% to Rescue Buyers from Last Year's $120k Entry; First Escape Exit at $72k

Bitcoin's price hovers around $64,000, leaving buyers who entered near the $123,000 peak in July 2025 down nearly 48%. These investors require a 92.2% rally just to break even. On-chain data from Glassnode highlights key resistance levels that will test the market's strength on any potential recovery path. The Short-Term Holder cost basis sits at approximately $72,200, while the Realized Market Mean is around $76,600. These levels represent the first major supply tests, as some holders may look to exit once losses narrow or profits are restored. BTC has traded below these benchmarks for about five months. Glassnode reports that while long-term holder capitulation is cooling and buyers absorbed the June lows, a definitive market bottom remains unconfirmed. Downside risk still exists, with the bear market lower bound near $53,000 identified as residual risk. For a sustainable recovery, stronger demand must first absorb potential selling pressure at the $72,200 and $76,600 levels. Only after reclaiming these cost bases would targets like $100,000 or the $123,000 breakeven for last year's peak buyers become relevant. The market's ability to handle supply at these initial checkpoints will be crucial for any further upward movement.

marsbit07/17 07:00

BTC Needs to Soar 92% to Rescue Buyers from Last Year's $120k Entry; First Escape Exit at $72k

marsbit07/17 07:00

BitMine Purchases Additional $73 Million Worth of ETH, Raising Its Share of Circulating Supply to 4.8%

BitMine Immersion Technologies (NYSE: BMNR), an Ethereum treasury company chaired by Fundstrat's Tom Lee, purchased an additional 42,197 ETH worth approximately $73 million over the past week. This acquisition brings the company's total ETH holdings to 5,742,237, representing 4.8% of Ethereum's circulating supply. The firm's total crypto and other holdings are valued at $11.1 billion, including its ETH (valued at $1,800 per coin), 206 BTC, a $180 million stake in Beast Industries, and a $71 million stake in Eightco Holdings (NASDAQ: ORBS). It also holds $527 million in cash and marketable securities. Notably, the amount of ETH staked by BitMine remained unchanged at 4,879,157 ETH, despite the overall increase in holdings. The company continues its consistent accumulation strategy, aiming to reach its stated goal of controlling 5% of ETH's total supply.

marsbit07/17 06:59

BitMine Purchases Additional $73 Million Worth of ETH, Raising Its Share of Circulating Supply to 4.8%

marsbit07/17 06:59

The Price of DeFi Mass Adoption: Understanding the Profit Distribution and Hidden Risks of Aave Stable Vaults

**Title:** The Price of DeFi Mass Adoption: Understanding Aave Stable Vaults' Profit Distribution and Hidden Risks **Summary:** Aave Labs' new "Stable Vaults" product aims to simplify DeFi for mainstream users by offering fixed yields, a rarity in crypto. The model inserts a middleman layer between users and Aave's underlying lending pools. This layer, often a fintech app or digital bank, absorbs interest rate volatility, guaranteeing users a pre-set stable return while capturing any excess yield from Aave's underlying pools. In exchange for this predictable "peace of mind" and services like customer support and simplified onboarding, users sacrifice potential higher yields and take on new counterparty risks from the operating entity and its infrastructure. The article illustrates this with the example of payroll provider Rise, which transparently passes through most Aave yield, versus the higher profit margins possible through Stable Vaults. While a rational trade-off for many non-expert users prioritizing simplicity and security, the system centralizes risk and obfuscates true market yields. Aave benefits by attracting sticky, non-speculative capital crucial for its long-term economic model, highlighting the industry's shift towards catering to fundamental human preferences for convenience over complex, self-managed financial systems.

Foresight News07/17 06:09

The Price of DeFi Mass Adoption: Understanding the Profit Distribution and Hidden Risks of Aave Stable Vaults

Foresight News07/17 06:09

Stripe's $53.4 Billion Acquisition of PayPal: The Final Piece of the Stablecoin Empire Puzzle

Stripe has reportedly made a $53.4 billion acquisition offer for PayPal, a move that could signal a major shift in the stablecoin landscape from a "technology race" to a "customer war." Over recent years, Stripe has been quietly building nearly every layer of a stablecoin empire: acquiring the issuance platform Bridge, wallet provider Privy, co-incubating the payments-focused Layer 1 network Tempo with Paradigm, and joining the Open USD (OUSD) alliance stablecoin initiative. What it lacks, however, is a massive direct consumer user base. PayPal, with its hundreds of millions of active accounts, the Venmo app, and its own PYUSD stablecoin, would provide exactly that. The acquisition could create a closed-loop system where Stripe handles the merchant side, PayPal/Venmo serve consumers, and transactions are settled via stablecoins on a blockchain like Tempo, potentially bypassing traditional card networks and their fees. While the deal is not yet finalized and may face hurdles—including potential resistance from PayPal's board or a higher bid—the mere offer suggests Stripe's strategic focus may have evolved. It indicates that having superior infrastructure alone may not be enough; distribution and user access are critical battlegrounds. Questions remain about how PYUSD, OUSD, and Venmo would integrate with Stripe's stack, and whether private equity co-investor Advent International would prioritize such crypto experiments. If successful, this acquisition could significantly boost Tempo's position in the competitive public blockchain space and further push crypto-based payments into the mainstream, potentially fulfilling PayPal's original vision of an internet-native currency through a new, crypto-native infrastructure.

marsbit07/17 05:56

Stripe's $53.4 Billion Acquisition of PayPal: The Final Piece of the Stablecoin Empire Puzzle

marsbit07/17 05:56

Hyperliquid's "Stock Price" for ChangXin Memory Tech Hits $8.64: How Was This Price Determined Before the IPO?

Title: Hyperliquid's "Stock Price" for CXMT Hits $8.64: How is This Pre-IPO Price Determined? Summary: On Hyperliquid, a derivative contract tracking the pre-IPO value of Chinese chipmaker Changxin Xinqiao (CXMT) has been trading, with its price reaching $8.64. This price is not a real stock price or a direct IPO valuation, but the result of a specific market mechanism. Trade.xyz deployed this "Pre-IPO Perpetual" (IPOP) contract via Hyperliquid's HIP-3 framework. It tracks the expected USD value of one Changxin A-share post-listing. The contract started with an artificial "discretionary reference price" of $5 set by Trade.xyz. Subsequent trading prices are primarily determined by supply and demand on Hyperliquid's on-chain order book. Since there's no tradable现货 before the IPO, the contract price isn't forced to align with the official IPO price of 8.66 RMB (~$1.28). Key mechanics shape the price: 1. **Order Book-Driven**: The actual成交价 comes from limit orders matched on-chain. 2. **Internal Oracle & Smoothing**: An internal oracle, run by Trade.xyz, calculates a smoothed price based on the order book's "impact price" using a 30-minute exponential moving average (EWMA). This oracle price influences funding rates. 3. **Mark Price for Risk**: A separate Mark Price, derived from the median of the internal oracle and other inputs, is used for calculating profit/loss and liquidation. 4. **Discovery Bound (Price护栏)**: A 20% "Discovery Bound" limits how far the price can move from the current reference point. However, if the price hits the bound, the reference price can be re-anchored upward (or downward) up to 7 times. This explains the阶梯状 jumps to $6, $7.2, and $8.64. 5. **Low Funding Rate**: A minimal funding rate (0.005 multiplier) allows positions to be held with low cost before the IPO, but it provides a weak anchor. Post-IPO, the contract is expected to convert to a standard stock perpetual, with its oracle switching to the actual A-share price converted to USD. This transition could cause price jumps and potential liquidations if there's a significant gap between the pre-IPO contract price and the real market price. In essence, the $8.64 price is a composite of: a人为设定的起点 + on-chain order book supply/demand +内部 oracle 平滑 + low funding rate damping + a moving price护栏. It represents a collective bet by specific market participants on the future public market valuation, not the company's current or official IPO price.

marsbit07/17 05:55

Hyperliquid's "Stock Price" for ChangXin Memory Tech Hits $8.64: How Was This Price Determined Before the IPO?

marsbit07/17 05:55

London Bitcoin Treasury Company at the End of Its Rope, Shareholders Vote to Sell All 668 BTC and Delist

London-based bitcoin treasury company Satsuma Technology faces a critical shareholder vote on July 20th. Shareholders holding over 20% of the company have proposed a plan to sell all of the company's 668.48 BTC and delist from the London Stock Exchange. The proposal requires at least 75% approval for two special resolutions, which are interdependent. If passed, the process would begin in early August, with the aim of returning net cash to shareholders after costs and a £2 million operational reserve. If either resolution fails, the company will continue its treasury strategy. The board is divided, with four directors recommending rejection and two in support. The company's shares have been suspended since July 1st due to delayed audited accounts. As of June 30th, Satsuma's BTC holdings were valued at £29.44 million, with the stock trading at a discount to its net asset value. This situation highlights the pressure on listed treasury companies during bear markets, testing their long-term "hold" strategies against shareholder demands for liquidity when shares trade at a persistent discount.

marsbit07/17 05:36

London Bitcoin Treasury Company at the End of Its Rope, Shareholders Vote to Sell All 668 BTC and Delist

marsbit07/17 05:36

Prices From the Future Fool the Oracle, Ostium Drained of $24 Million in Five Minutes

Ostium, a perpetual trading platform, suffered a security incident on July 15, resulting in significant losses from its public liquidity vault. Initial analyses from Blockaid, Cyvers, and PeckShield estimate losses of up to $24 million. The exploit occurred over a five-minute window. According to security firms, the core issue was not a missing signature, but a data integrity failure: a registered price oracle (PriceUpKeep) submitted authorized price reports with manipulated future timestamps, creating false trading profits. The protocol’s verification process confirmed the signatures as authorized but did not enforce price sanity checks or timestamp boundaries, allowing the manipulated data to be accepted for settlement. This caused the liquidity vault to pay out on these fraudulent profits. Ostium’s co-founder confirmed the team paused trading within an hour and is collaborating with law enforcement and security experts. The extracted funds were reportedly swapped for ETH, with a portion moved to Tornado Cash. The incident highlights risks in DeFi oracle designs where cryptographic signature verification is insufficient without additional safeguards for data validity, timestamp freshness, and price reasonableness. Ostium's response and planned fixes—including stricter timestamp validation, independent price checks, and circuit breakers—will be critical to preventing similar exploits.

marsbit07/17 05:33

Prices From the Future Fool the Oracle, Ostium Drained of $24 Million in Five Minutes

marsbit07/17 05:33

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