Daily Crypto Briefing

Good Morning Blocksignal Community,

Executive Summary

Monday gave us three stories pulling in different directions. Bitcoin slipped back under $80,000 as the weekend's altcoin bid faded, with on-chain data showing large holders flipping into net selling for the first time since early June. The macro backdrop hardened, because US strikes on three Iranian oil tankers pushed WTI above $92 and Friday's strong jobs report left traders pricing a 58% chance the Fed raises rates on September 16, a framing crypto has not had to price in years. And the security ledger got worse, with roughly $320 million in bitcoin leaving the Liquid Network's federation wallet through a software bug rather than a stolen key.

Market action

Bitcoin traded around $79,300 through Monday, down about 1.3% since midnight UTC after spending the weekend stuck in a tight range below $81,400. Ether opened at $2,514.80, up 1.4% from Sunday's open and its strongest opening print since August 22, before easing back toward $2,497 during US hours.

The more interesting detail is what bitcoin did not do. Nasdaq 100 futures were up 0.3% over the same window even though US cash equity markets were closed for Labor Day, which extends a divergence that ran through all of last week. When crypto declines while equity futures rise, the driver is usually specific to crypto rather than a broad risk-off move, and Monday fits that pattern.

Altcoins did the heavy lifting over the weekend and spent Monday handing some of it back. Bittensor led the large caps with a 13% advance to $266 on $568 million of volume, though almost all of that landed before midnight UTC. Kaspa climbed 12.75% on the day and 24.8% on the week to 3.418 cents, but on only $17.6 million of volume against a $947 million market capitalization, which makes the move look thin rather than convincing. Internet Computer and Celestia also cleared 12% over 24 hours. Chainlink was one of the few names still holding a bid into the US session, up 1% at $13.37 and 18.6% on the week, while Arbitrum shed double digits to 17.17 cents after nearly doubling over the previous seven days, and Jupiter fell 9% to $0.2514 with no visible catalyst.

The privacy trade unwound unevenly. Zcash eased 1.74% to $1,206 but is still up around 45% on the week, Dash fell 5.3% to $67.56 while keeping a 63% weekly gain, and Monero held roughly flat. That is what a crowded rotation looks like when it starts to tire: the leaders stop leading, but nobody wants to be the first one out.

Derivatives and on-chain

Positioning moved toward caution across the board. The taker buy-sell volume ratio in crypto futures leaned short on Monday, with bearish flow accounting for 51.6% of volume, a reversal from Friday's bullish reading. Open interest in bitcoin futures fell to 670,000 BTC from 709,000 on Friday, the lowest since March 23, according to CoinGlass. Annualized perpetual funding rates dropped toward zero from recent readings in the 8% to 10% range, and open interest in XRP futures cooled to 2.29 billion tokens, the lowest since August 7 and well off the mid-month peak of 2.78 billion.

Falling open interest alongside falling funding is capital leaving rather than capital positioning. It takes leverage out of the system, which reduces the risk of a cascade, but it also removes the fuel that drives a breakout. In options, the two most traded contracts by 24-hour volume on Deribit were the $78,000 and $80,000 bitcoin puts expiring September 25, both of them downside hedges, while ether's top-volume contracts were calls. Implied volatility on both assets sits near recent lows, so nobody is paying up for protection yet.

The on-chain picture points the same way. Glassnode data cited by CoinDesk shows the market entering a period of distribution, meaning net selling, for the first time since early June, with the aggregate accumulation trend score across all wallet cohorts at 0.37. Wallets holding at least 1,000 BTC are leading that selling after roughly three months of aggressive accumulation around $60,000. That is the same cohort that bought the August recovery, and it is now taking profit into the $83,000 resistance that has capped every attempt since the May high.

Macro and geopolitics

The oil story is the one to keep front of mind. US Central Command confirmed on Saturday that it struck three Iranian oil tankers, the M/T Downy near Kharg Island, the M/T Stark 1 near Jask and the M/T Kylo in the Gulf of Oman. "If you shoot at two of our ships, we will impose an even higher economic cost, taking out three of yours," Admiral Brad Cooper said afterward. Centcom also reported that US forces have redirected 92 merchant ships, disabled three and boarded two since operations resumed on July 14.

WTI traded at $92.72 on Monday, up more than 6% in the first seven days of September and well above the early-July low near $70. Higher oil feeds into headline inflation, which makes it harder for central banks to cut, and crypto has spent most of the past two years trading as a liquidity asset. That transmission chain matters more for bitcoin right now than any single headline out of the Gulf.

Which brings us to the Fed. Friday's August jobs report came in strong, and the immediate market reaction was hawkish, with bitcoin falling from $81,300 to $78,700 within a couple of hours while the two-year Treasury yield rose to 4.42% from 4.36%. The chatter since then has been that a September hike is now the base case. The pricing says otherwise. Traders assign a 58% probability that the Fed raises its benchmark by 25 basis points to a 3.75% to 4% range on September 16, according to the CME FedWatch Tool, which is roughly where it sat a week ago in the aftermath of Chair Kevin Warsh's hawkish Jackson Hole remarks. The jobs report moved the commentary, not the money.

President Trump added his own pressure on Friday, posting that the Fed "must get smart" and calling for the lowest rate of any country in the world. That leaves Warsh caught between a strong labor market and a president demanding cuts, and the resulting uncertainty is arguably a bigger drag on risk appetite than the rate decision itself. A hike on September 16 remains a live possibility rather than a settled outcome, and Friday's inflation print is the thing most likely to settle it.

Security

Liquid Network, the Bitcoin sidechain launched by Blockstream in 2018 and overseen by a federation of more than 80 exchanges, infrastructure firms and asset managers, halted all new transactions after purported white-hat hackers removed roughly 4,000 of the 4,200 bitcoin held in its federation wallet, worth about $320 million.

The mechanism is what makes this worth understanding rather than just noting. No password or private key was compromised, which is how most of this year's hacks have worked. Blockstream traced the incident to a software bug in Elements, the codebase underlying Liquid, which allowed some of the bitcoin involved to be created rather than backed. The funds then moved out through SideSwap, an approved trading platform on the network, which said it could not distinguish the bug-created coins from real ones and therefore treated them identically. Security specialists place the flaw at the node level in Liquid's transaction software rather than in keys or hardware modules. Other assets issued on Liquid were not directly affected.

Liquid exists to solve a practical problem, namely that the Bitcoin base layer is slow for exchange settlement, so the network issues L-BTC against bitcoin locked in reserve. A drain of nearly the entire reserve puts a question mark over that model that no amount of "the keys were fine" can fully answer. The party holding the coins has been communicating with maintainers through onchain messages, asking that every node be patched before anything is returned. "Please fix the bug first. The chain is under risk at latest commit right now," one message read.

Separately, the Coldcard attacker moved 97.09 BTC, about $7.7 million and roughly 45% of the bitcoin taken in the third wave of that campaign, routing 20.5 BTC through THORChain on September 2 and 15.48 BTC into a CoinJoin around the same time. The wider exploit, which began on July 30 after a firmware flaw weakened the randomness used to generate wallet seeds, totals roughly 1,806 BTC.

Adoption and industry

The bank-side news was the more consequential of the day. DBS and Citi completed the first cross-border dollar payment using tokenized deposits on Swift's Digital Ledger, executed on September 5 between DBS in Singapore and Citi's New York office and settled in minutes against an industry norm of up to two business days. It is the second confirmed live transaction on Swift's blockchain ledger, following HSBC and Standard Chartered in August. The point is not the technology, which is unremarkable by now, but that the settlement rail banks actually use is starting to process weekend value transfer.

On Ethereum, core developers moved EIP-8141, known as Frame Transactions, to Scheduled for Inclusion at their August 27 call, with the feature landing in the Hegotá upgrade in 2027. It lets a payments application cover the gas fee itself, or take stablecoins from a user and settle the ether bill on their behalf. Ethereum still gets paid in ether, and the user never has to buy any. For anyone building consumer payment flows on Ethereum, the requirement to hold a second asset just to move the first has been the most persistent point of friction, and this removes it. Solana, meanwhile, is tripling its maximum transaction size to give applications room for more complex trades.

Regulation

The UK Financial Conduct Authority is reportedly weighing whether to ease its ban on financial prediction markets, according to The Times, having held talks with trading platforms as British users increasingly route to Polymarket and Kalshi. Its public position still supports the ban, so this is a signal of direction rather than a change in the rules.

In Poland, prosecutors charged a fifth suspect in the long-running investigation connected to the exchange formerly known as BitBay and now Zonda. Roman Ż., described as a former business partner of Suszek and said by his lawyer to have helped manage BitBay before the rebrand, was arrested on Saturday in the Silesian region and faces two charges, one of them fraud, with prosecutors seeking pretrial detention. The probe has been extended into next year, and roughly four million euros sitting in one bank account has been frozen.

Today's Watch

The week is macro-led and shortened. US producer prices land on Thursday, September 10, and the August consumer price index on Friday, September 11, the last major inflation readings before the Fed decides on September 16. The European Central Bank also decides this week, followed by the Bank of Russia. Given that the hike probability did not move on jobs data, Friday's CPI is where the September decision actually gets made, and a print below expectations would take a hike largely off the table.

On the crypto-specific calendar, Coinbase is scheduled to switch the venue powering perpetual futures in its app and on its website from Coinbase International Exchange to Deribit on September 9, the exchange it acquired in August 2025. Two token unlocks fall on September 11, with Aptos releasing 1.32% of circulating supply worth roughly $6.57 million and Pump releasing 1.74% worth about $30.15 million. GameStop and bitcoin miner Canaan report earnings this week, and Blockstream plans to publish the source code behind its Core Lightning 26.06.7 security fixes.

The thing to follow most closely is Liquid. Whether the coins come back, whether Blockstream publishes a root cause for the Elements bug, and how long federation members keep the network paused will tell you more about the security assumptions behind wrapped and federated bitcoin than any audit would. Watch also whether bitcoin futures open interest keeps bleeding, because with funding near zero and large holders distributing into $83,000, the market currently lacks both the leverage and the spot bid it would need to force a breakout.

Sources

CoinDesk — Weekend altcoin rally runs out of road as bitcoin slips

CoinDesk — Bitcoin struggles at $83,000 'wall' as whales flip into net selling

CoinDesk — Oil up, bitcoin down as U.S. strikes Iranian crude carriers

CoinDesk — No, Friday's jobs report hasn't materially boosted Fed rate hike odds

CoinDesk — $320 million bitcoin exploit hits Liquid Network. Hacker makes conditional offer

CoinDesk — Coldcard hacker moves $7.7 million in BTC, 45% of bitcoin stolen in third attack wave

CoinDesk — DBS and Citi execute first weekend cross-border payment on Swift ledger

CoinDesk — Ethereum commits to letting users pay gas fees without holding ether

CoinDesk — Solana to triple transaction size as apps get room for more complex trades

CoinDesk — UK regulator weighs easing financial prediction market ban

CoinDesk — Polish prosecutors charge fifth suspect in a massive crypto probe