Mira Chen

Mira Chen is up&down's Bitcoin and macro lead. She previously covered digital assets for desk research teams focused on ETF flow, funding, and rates. Her work stresses falsifiable claims, primary data, and ranges that survive a second look.

Comic still life of a sealed shipping carton, blank envelope, magnifier on a blank slip, and a glowing hardware-wallet slab. No text or hands.

Bitcoin News

Trezor ShipMonk leak: PII, not a seed drain

Trezor says a ShipMonk breach exposed order data for about 13,689 customers. Devices were not hacked. The live risk is phishing, not a seed drain.

2 months ago Mira Chen

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Bitcoin News

Riot Q2: $9.1B AI lease overshadows mining drag

Riot Platforms Aug 10 SEC 8-K: $174.2M Q2 revenue, 1,587 BTC mined, and a 191 MW Rockdale AI data-center lease expected at $9.1B contract value.

2 months ago Mira Chen

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Bitcoin News

BIP-110 minority fork stalls as Bitcoin stays put

BIP-110 split onto a minority Bitcoin chain that mined only two blocks before stalling. Mainnet Bitcoin held near $64,860 with calm spot depth.

2 months ago Mira Chen

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Bitcoin News

BTCPay LND flaw: patch 2.4.2 after live theft

BTCPay Server says LND macaroon theft is actively exploited; operators on builds before 2.4.2 should patch to 2.4.2 or take nodes offline now.

2 months ago Mira Chen

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Crypto News

MARA Q2: more hashrate, smaller Bitcoin stack

MARA Holdings Q2 2026 grew energized hashrate while cutting its Bitcoin stack 29% after selling most coins mined; CleanSpark printed soft mining revenue beside a $6.6B Sandersville lease.

2 months ago Mira Chen

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Bitcoin News

Strategy sells 1,638 BTC to fund dividends, STRC

Strategy sold 1,638 BTC for about $104.7 million in the week through August 2, using proceeds for preferred dividends and STRC buybacks while the USD Reserve rose to…

2 months ago Mira Chen

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Bitcoin News

Coldcard weak seeds: Bitcoin cold storage under fire

Coinkite’s Coldcard advisories and Block’s engineering write-up detail a seed RNG failure while Galaxy-tracked sweeps near 1,367 BTC. Mira Chen on what cold storage still means.

2 months ago Mira Chen

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Bitcoin News

Strategy Q2: $8.2B loss, Bitcoin treasury shifts

Strategy reported an $8.22 billion Q2 net loss driven by Bitcoin fair-value marks, while growing its stack to 843,795 BTC and building a USD reserve with selective monetization…

2 months ago Mira Chen

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Bitcoin News

Fed holds rates: Bitcoin stays in range

The Federal Reserve held the federal funds rate at 3-1/2 to 3-3/4 percent on July 29, 2026. Bitcoin remains near $64,500 as three FOMC members dissented for a…

2 months ago Mira Chen

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Bitcoin News

Bitcoin Fed day: calm tape, live hike odds

Bitcoin is green into the July 29 Federal Reserve decision, but futures still price a meaningful chance of a hike. Here is how we are reading the calm…

2 months ago Mira Chen