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 vault door, blank gold disc, paper stack, and glowing coin cube. No text.

Crypto News

Treasury GENIUS NPRM: who may issue U.S. stablecoins

Treasury on August 17, 2026 proposed GENIUS Act section 3 rules on who may issue, offer, or sell payment stablecoins in the United States. The draft uses a…

3 weeks ago Mira Chen

Comic still life of a vault door, blank coin, ledgers, and a resting magnifier

Bitcoin News

MSCI names Strategy in simulated index deletions

MSCI August 2026 consultation names Strategy for a simulated ACWI IMI deletion under a non-operating screen. Feedback closes Sept. 30; results due by Oct. 16.

4 weeks ago Mira Chen

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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.

4 weeks ago Mira Chen

Comic illustration of a blank gold coin in a data-center aisle with neon server racks and magenta crystals

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.

4 weeks 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.

1 month 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.

1 month ago Mira Chen

Comic illustration of a mining hall converting toward glowing compute racks with blank coin stacks and a blank ledger

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.

1 month 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…

1 month 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.

1 month ago Mira Chen

Comic illustration of a Bitcoin coin beside a vault, ledger, and chart with no text overlay

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…

1 month ago Mira Chen