The Polylog Crypto Intelligence Brief

Morning Edition · Tuesday, September 15, 2026

Crypto

Senate Takes Up Crypto Market-Structure Bill Today With Banks and 17 State Attorneys General Opposed

Republicans need seven Democratic votes to clear the 60-vote threshold, and Senate Democrats sent a counteroffer hours before the 2:15 p.m. Eastern procedural vote.

5 sources
Corroborated

Crypto

Aztec Discloses a Soundness Flaw That Let a Valid Proof Authorize an Invalid Transaction

Core contributors found the defect in the live Alpha V5 privacy network on 27 July using internal artificial-intelligence-assisted auditing, and the fix ships with V6.

3 sources
Corroborated

Crypto

Circle Opens a Public Blockchain on Wednesday With BlackRock, Visa and DTCC Running the Validators

Arc uses USDC as its gas token and settles in under half a second, but the institutional validator set guarantees ledger operation, not user losses.

2 sources
Corroborated

Crypto

Solana Raises Its Transaction Size Limit to 4,096 Bytes on Mainnet

The new transaction format took effect at the start of epoch 1035 early Tuesday and lets a zero-knowledge proof or a large multisignature approval fit in one atomic transaction.

2 sources

Crypto

Ethereum and Base Abandon a Shared Wallet Standard and Will Ship Two Formats

Ethlabs researcher Derek Chiang said the effort to merge Ethereum Improvement Proposal (EIP) 8130 and EIP-8141 ended after Ethereum prioritized censorship resistance and Base prioritized scale and compliance.

2 sources
Corroborated

Geopolitics

US Prosecutors Seek $61 Million Tied to Iranian Oil Sales Laundered Through Binance

The civil forfeiture complaint targets stablecoin proceeds the Department of Justice says funded Iran's military, and it does not require a criminal conviction.

2 sources
Corroborated

Crypto

A Dormant Governance Contract, a Reentrancy Bug and Four Chained Flaws: Three Exploits Documented

An attacker bought and self-delegated 3.3% of Yam Finance's token supply to clear quorum alone, while two BNB Chain token contracts lost funds to classic reentrancy.

4 sources
Corroborated

Crypto

Miden Says It Will Issue a Native Private Dollar Backed Through Circle's Reserve Programme

USDCx would let a Circle-backed stablecoin move with hidden amounts and counterparties, the first case of the largest regulated issuer supplying a confidential chain.

2 sources
Plausible

Crypto

Swiss Bitcoin Pay Takes Servers Offline After Intruder Reaches Customer Bank and Wallet Records

The Neuchâtel processor says no funds were lost because it never held keys, but exposed data includes bank account numbers, Bitcoin addresses and transaction histories.

2 sources
Corroborated

Crypto

House Tax Writers Release a 114-Page Crypto Tax Package Ahead of Wednesday Markup

The bill addresses small-transaction exemptions that the industry has sought for years, though reporting differs on how fully it settles the taxation of mining and staking rewards.

2 sources
Corroborated

Markets

Strategy Skips Another Bitcoin Purchase and Buys Back Its Own Stock as Yields Test 5%

Strive added to reach 25,000 Bitcoin and France's Capital B bought four more coins, while the largest corporate holder redirected cash to its share count before Wednesday's Federal Reserve decision.

5 sources

Crypto

CoinEx Will Close After Nine Years, Citing Thinner Liquidity and Rising Compliance Costs

Spot trading ends 29 September and withdrawals close 22 December, on the same day Binance cut commodity perpetual futures to weekday hours.

2 sources
Plausible