TLDR Index
Daily Editions
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  1. Page 1: Today’s IndexTLDR InfoSec, TLDR IT, TLDR Design, TLDR · 9 stories
  2. Page 2: TLDR InfoSecTLDR InfoSec · 8 stories
  3. Page 3: TLDR ITTLDR IT · 11 stories
  4. Page 4: TLDR AITLDR AI · 9 stories
  5. Page 5: TLDR AI — continuedTLDR AI · 9 stories
  6. Page 6: TLDR DesignTLDR Design · 11 stories
  7. Page 7: TLDRTLDR · 14 stories
  8. Page 8: TLDR DevTLDR Dev · 13 stories
  9. Page 9: TLDR CryptoTLDR Crypto · 12 stories
  10. Page 10: TLDR ProductTLDR Product · 10 stories
  11. Page 11: TLDR MarketingTLDR Marketing · 12 stories
  12. Page 12: Resources & ToolsTLDR AI, TLDR Dev, TLDR InfoSec, TLDR Design, TLDR Marketing · 9 stories
  13. Page 13: SponsoredTLDR, TLDR AI, TLDR Dev, TLDR Product, TLDR Marketing · 10 stories
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Daily Edition · Page 9

THE DAILY INDEX

Technology, AI, software, security, crypto and business

MARKETS & BUSINESS

TLDR Crypto

TLDR Crypto

STRATEGY RESUMES BITCOIN BUYING

Strategy bought 4,603 BTC for $369.7M (avg. $80,318/BTC), bringing total holdings to 845,050 BTC (~$66.1B, over 4% of bitcoin's supply cap) at an average cost basis of $75,412/BTC, implying ~$2.34B in paper profits. Funded via at-the-market stock sales, the company also used proceeds to repurchase STRC preferred shares and pay dividends. This marks a resumption of buying after weeks of pausing/trimming. MSTR is still down 63% from its 2025 peak despite gaining 6.3% last week.

links.tldrnewsletter.com · 2 min

TLDR Crypto

ICE PARTNERS WITH TZERO ON TOKENIZED SECURITIES INFRASTRUCTURE

tZERO will serve as design partner for NYSE parent Intercontinental Exchange's upcoming digital transfer agent program for tokenized securities. ICE will also invest in tZERO's latest funding round and license its 103-patent blockchain IP portfolio (covering compliant transfers, smart contracts, and corporate actions), with both firms exploring use of tZERO's tokenized assets as collateral at ICE clearing houses.

links.tldrnewsletter.com · 2 min

TLDR Crypto

POSEIDON2B IS SECURE!

A researcher has published a point-by-point defense of their Poseidon2b hash function implementation for potential use in Ethereum, asserting it holds against the recently published "Skipping Class" algebraic attack. The paper's exploit targets state widths t=12-24 using a tensor MDS construction. The production instance runs t=4 with a complete external MDS layer, placing it outside the attack's scope. The best published cryptanalysis of the specific parameters (GF(2^128), x^7 S-box, 8 external/58 internal rounds) projects attack work at approximately 2^410, well above the 128-bit security target. The researcher backs the claim with pinned source code and executable audits, inviting targeted cryptanalysis of the exact configuration rather than generalized arguments about Poseidon as a family.

ethresear.ch · 4 min

TLDR Crypto

TECHTREE V0.1: CONTROLLED SKILL EVALS WITH VERIFIABLE PROOF BUNDLES

Techtree is a controlled evaluation platform from Regents Labs that isolates a single variable (the Skill) across a fixed model, harness, runtime, tools, and budget to produce evidence of whether an agent improvement is real. Each evaluation run outputs a signed, participant-attested proof bundle verifiable offline, solving the trust problem of accepting another agent's benchmark results without rerunning the eval. The v0.2 roadmap introduces "Environment Forge" to convert source evidence (chat logs, traces, and repositories) into qualified verifier environments, with later versions gating receipt access behind x402 payments and feeding forged environments into RL training via prime-rl. The longer-term plan opens improvement markets for Skill Climbs and Harness Climbs with onchain reputation for authors, building credibility rails for agent skill development and deployment.

links.tldrnewsletter.com · 5 min

TLDR Crypto

B20: THE STANDARD BEHIND TOKENIZED STOCKS ON BASE

Coinbase launched four tokenized equity tokens (NVDAc, METAc, AAPLc, and GOOGLc) on Base for non-US users, built on B20, a Base-native standard for compliant onchain asset issuance. B20's multiplier system handles corporate actions by updating a single onchain value rather than rewriting ERC-20 balances, keeping AMM pool reserves unchanged during stock splits and dividends and preserving DeFi liquidity. A shared Policy Registry propagates compliance updates such as sanctions blocklists to every asset referencing it, and administrators holding the seize role can move tokens from flagged addresses to authorized destinations with onchain memos recorded atomically. The launch generated $10.8M in 24-hour volume and $3.06M in DEX liquidity across ~50 protocols including Aave, Morpho, and Aerodrome, as the tokenized public equities sector reaches $2.48B total with Ondo leading at $872.7M.

links.tldrnewsletter.com · 5 min

TLDR Crypto

STRATEGY'S BITCOIN IS $2.8 BILLION IN PROFIT. IS SAYLOR TEEING UP A BUY?

Strategy holds 840,447 BTC at an average cost basis of $75,653, with Bitcoin trading near $79,007, placing the position roughly $2.8 billion (4.4%) in profit after a two-month acquisition pause. The firm has begun selling modest BTC quantities to fund preferred dividends and share buybacks, a departure from its longstanding "never sell" policy, while also raising $334 million via MSTR stock sales to preserve reserves. Saylor's Sunday post of a chart captioned "We're Back" has renewed speculation about an imminent purchase announcement, consistent with his pattern of social media signals preceding Monday morning buys. Fed Chair Kevin Warsh's inflation-driven rate-hike comments pulled Bitcoin to $76,877 by Friday, keeping Strategy's unrealized gain thin relative to the asset's October peak near $126,000.

decrypt.co · 3 min

TLDR Crypto

AMM YIELD MAXIMIZATION: CONVERGENCE OF THE LP AND ARBITRAGEUR

MEV-X researchers and HSE University collaborators introduce "dislocation value," the total extractable profit when an AMM pool price diverges from the market, and demonstrate that any fee levied on arbitrage trades reduces total value capture across all six tested architectures, including Uniswap V2/V3, Balancer, and Curve. Pools optimizing fee revenue independently capture roughly 50% of maximum dislocation value, with the remainder split between external arbitrageurs and unrealized losses. At the standard 0.30% fee tier, pool capture falls to 42% on a 1% dislocation scenario. The proposed fix is AMM hooks that execute atomic internal arbitrage post-swap, letting pools charge zero on rebalancing operations while retaining normal retail fees and eliminating external searcher profit. This architecture converts liquidity providers into active arbitrageurs at the protocol level, redirecting the value leakage currently flowing to external searchers back to the pool.

ethresear.ch · 6 min

TLDR Crypto

INVESTORS AT LEAST $4.7 BILLION UNDERWATER ACROSS TRUMP CRYPTO VENTURES

A Public Citizen report tallies investor losses across Trump-linked crypto ventures at a minimum of $4.7 billion in 2025, against at least $1.4 billion Trump earned from the same projects. The TRUMP memecoin drives $3.2 billion of those losses. Roughly 1 million of 1.6 million retail buyers on decentralized exchanges remain underwater after the token fell from a $73.43 peak to approximately $2.73, with wallets from the first two trading days capturing nearly 90% of all retail-side gains. World Liberty Financial contributed $1 billion in additional losses, led by AI Financial Corp's $1.46 billion WLFI token purchase in August 2025, which left the Nasdaq-listed firm's stock down 91% to $0.642, while Trump Media's 9,477 BTC position accounts for another $450 million in losses. Trump's tokens were allocated rather than purchased, and his income flowed through licensing fees, meaning he deployed no capital while retail holders absorbed the drawdown.

links.tldrnewsletter.com · 3 min

TLDR IndexPage 9