Crypto bounced overnight after the Federal Reserve 25 basis-point hike, while UK perimeter guidance and protocol forums did the real work. The CoinGecko snapshot fetched at 00:15 UTC on September 17, 2026 put Bitcoin at $76,278, up 0.9%. Ether was $2,418.80, up 0.9%. Solana was $98.79, up 2.0%. Global market cap sat near $2.62 trillion, bitcoin dominance about 58.4%, and 24-hour volume about $91.6 billion.
London published how the UK cryptoasset regime applies, with authorisation opening September 30, 2026. HIVE said mining plus GPU-cloud revenue has averaged more than $1 million a day. Researchers simulated 63 EIP-7999 fee-market setups. Compound asked to renew security vendors at a lower spend. Optimism Upgrade 20 would move fault proofs to Super Root games. Aave floated higher ETH and BTC collateral ratios. Kraken delayed MultiversX funding. Uniswap governance was asked to rotate Sentinel wallets on Earn vaults.
FCA tells crypto firms how the UK regime applies before the 2027 start
The Financial Conduct Authority published guidance on September 16, 2026 that explains how the law behind the UK cryptoasset regime applies to firms, and which activities may need FCA authorisation. The regime takes effect on 25 October 2027, and the authorisation gateway opens on 30 September 2026. Covered activities include issuing qualifying stablecoins, operating cryptoasset trading platforms, dealing and arranging deals, safeguarding cryptoassets, and arranging cryptoasset staking. The FCA said it will consult in October on targeted updates after government amendments on UK qualifying stablecoins, proprietary trading and market making, certain technology providers, decentralised protocols, safeguarding with central securities depositories, and financial promotions.
HIVE says daily revenue tops $1 million as BUZZ HPC hires a sales lead
HIVE Digital Technologies furnished a September 10, 2026 press release as Exhibit 99.1 to a Form 8-K accepted at 21:31 UTC on September 15 and filed September 16, naming Mark Volk Senior Vice President, Revenue at BUZZ HPC. Preliminary unaudited estimates say combined hashrate and GPU-cloud revenue exceeded $1 million in a day on August 21, 2026, and since then HIVE produced an average of about 12 bitcoin per day (about 2% of global network production) while GPU cloud averaged about $100,000 a day. Combined average daily revenue stayed above $1 million at prevailing prices and difficulty. Swedish bitcoin mining was less than 5% of global daily revenue in August, and the company intends to wind that mining down as it studies HPC and AI reuse, while CEO Aydin Kilic said Volk helped build a GPU-cloud pipeline of more than $1 billion in total contract value potential and that year to date the firm closed more than $600 million in GPU-cloud TCV.
EIP-7999 sims: bigger execution targets do not always deliver more gas
Fei Wu posted a dynamic simulation of EIP-7999 multidimensional fees on Ethresear.ch on September 16, 2026, work partly done during an Ethereum Foundation internship. The study resampled shocks from 430,605 consecutive blocks in April and May 2026, then tested 63 configurations with execution targets from 150 million to 300 million gas and data targets from 22.5 million to 80 million, each with a one-day burn-in plus 7 measured days (50,400 blocks) across 32 bootstrap paths. A setup that clears in equilibrium can still perform poorly when demand jumps block by block. The highest delivered execution across tested scenarios was about 270 to 272.6 million gas per block, and under a propagation window of 4 seconds or longer the E300/D80 and E300/D90 configs reached that range while still spending substantial time at hard limits and the 1-wei execution floor.
Compound Foundation asks to renew security vendors at a 17% discount
On September 16, 2026 the Compound Foundation posted a one-year renewal for the three providers that secure the protocol today. ChainSecurity and Certora would renew audits, formal verification, advisory, and the vCISO function at $1,324,000 for twelve months, falling to $1,024,000 annualised if the vCISO is later offboarded, while zeroShadow would renew 24/7 monitoring and incident response (now including governance-proposal review) at $335,000 and ChainPatrol would return to the DAO budget at $36,000. Combined spend would fall to $1,695,000 from $2,036,000 today, a $341,000 or 17% saving. The Foundation said it renegotiated rather than exercise two one-year options at $1.75 million, and it intends Snapshot ratification then disbursement under the Treasury Management Committee framework.
Optimism Upgrade 20 would move fault proofs to Super Root games
OP Labs engineer Andrea Federici posted Upgrade 20 on September 9, 2026 as an L1 smart-contract upgrade with no L2 hardfork and no consensus timestamp. Fault proofs would move from Output Root Dispute Games to Super Root Dispute Games, adding SUPER_PERMISSIONED (game type 5) for permissioned chains and SUPER_CANNON_KONA (game type 9) for permissionless chains, while permissionless chains would flip the respected game type from CANNON_KONA (8) to type 9. The upgrade is a prerequisite for interop but does not enable it: no OPCM.migrate() is called, and each game still covers a single chain. SUPER_PERMISSIONED games would resolve immediately as DEFENDER_WINS, still subject to the air-gap and Guardian blacklisting, and the bundle includes OPCM v8.0.0 upgrade-sequence enforcement.
Aave ARFC would lift ETH and BTC collateral ratios on V3 and V4
On September 16, 2026 an ARFC proposed raising loan-to-value and liquidation thresholds for ETH and BTC collateral families on Aave V3 Ethereum Core, Arbitrum, and Base, plus matching collateral factors on the Aave V4 Ethereum Main Spoke. WETH would move to 81% LTV and 84% LT on Ethereum Core, Base, and Arbitrum, wstETH to 79%/82% and weETH to 78%/81% on Ethereum Core, and WBTC to 81%/85% on Ethereum Core and 78%/82% on Arbitrum. The calibration uses the 99.9th percentile of the worst one-hour excursion, spanning the February 2025 and October 2025 stress windows, and cites two-year annualized volatility of 68.8% for ETH versus 44.4% for BTC. Those two stress events produced $0 and $0.39 million of bad debt, with none for the analyzed collateral.
Kraken's status page opened a MultiversX (EGLD) funding-delays incident at 13:58 UTC on September 16, 2026. As of this brief the incident remained identified with minor impact and no resolve timestamp. The update said deposits and withdrawals may be delayed, while all other funding methods were operating normally. Traders waiting on EGLD rails should treat the gateway as slow until Kraken marks the incident resolved.
Uniswap RFC would rotate Sentinel wallets on Earn vaults
An RFC posted September 10, 2026 asks Uniswap governance to rotate Sentinel addresses on the three Gauntlet-curated Morpho Vaults V2 behind Uniswap Earn: uniUSDC at 0x5B453493D2328E7F747eb2e66446eFe707728be7, uniUSDT at 0xb8274eFADB953FE9ae052D481a3FC5B6A3ceD703, and uniETH at 0x98D2b241DA14c5dd848812708Eb8A1F3c5512f9d, all on Ethereum mainnet. DUNI's mainnet Timelock at 0x1a9C8182C09F50C8318d769245beA52c32BE35BC owns the vaults, and Gauntlet upgraded signing infrastructure so the proposal would call setIsSentinel six times to grant new addresses and revoke legacy ones. A forum reply said existing depositors need take no action and the security profile does not change. Performance fees are currently zero on all three vaults, the Curator stays Gauntlet, and the Owner stays the Timelock.
