Global Crypto Mining News in March: 20 Millionth BTC, $80K Mining Cost, AI GPU Mining
Explore March crypto mining news, from the 20 millionth Bitcoin mined to mining costs above $80,000 and renewed AI-driven GPU mining experiments.
March tightened the story around crypto mining: Bitcoin hit a historic issuance milestone, public miner economics worsened, and the sector’s AI pivot showed up in concrete GPU cloud disclosures rather than any verified return to literal GPU coin mining.
The symbolic supply threshold was crossed when block 939999 was mined on March 9, 2026, at 13:22:32 UTC, pushing Bitcoin issuance through the 20 million BTC mark.
- Block 939999 marked Bitcoin crossing the 20 million BTC threshold in March.
- CoinShares put the weighted average cash cost at US$79,995 per BTC, which is effectively near $80,000 but not clearly above it.
- Bitdeer’s 2,096 deployed GPUs and approximately US$21 million in ARR showed the AI story was about compute monetization, not proven GPU-mining revival.
March’s Biggest Crypto Mining Milestones
CoinShares said the weighted average cash cost to produce one bitcoin among publicly listed miners reached approximately US$79,995 in Q4 2025, which explains why March coverage centered on a margin squeeze across the sector.
That is why the headline claim that mining cost had moved above $80,000 should be treated cautiously: according to a single unconfirmed report, the figure was framed as above that line, but the strongest official number available is still US$79,995.
Cointelegraph described CoinShares’ findings as a mining squeeze that could force weaker operators to shut rigs and slow hashrate growth, which is a direct read-through from the US$79,995 cash-cost metric.
The same CoinShares report said more than US$70 billion in cumulative AI/HPC contracts had been announced across public miners, and that listed operators could derive as much as 70% of revenue from AI by the end of 2026 versus roughly 30% at the time of the report.
That AI angle is better understood as compute diversification than as “AI attempts GPU mining.” The verified evidence points to miners reallocating power, capital, and data-center capacity toward AI/HPC workloads, a shift that lines up with AICryptoCore’s recent look at agent-focused infrastructure on Solana.
Bitdeer said it mined 705 BTC in February 2026 and that its self-mining hashrate reached 68 EH/s, showing that miners were still scaling core Bitcoin production even while AI businesses expanded alongside it.
In the same update, Bitdeer listed 2,096 deployed GPUs, 64% utilization, 1,240 units under external subscription, and approximately US$21 million in ARR for its GPU cloud segment, which is the clearest verified company-level datapoint behind the March GPU-compute narrative.
That operating split also sits beside the balance-sheet story covered in Public Companies Added 47K BTC in March 2026 as Strategy Bought 44.4K, where listed entities were influencing Bitcoin supply from the treasury side while miners fought tighter production economics.
What These March Mining Signals Mean
The combination of the 20 million BTC milestone and the US$79,995 mining cash cost sharpens the post-halving message: issuance keeps getting scarcer even as production stays expensive, leaving smaller operators with less room to absorb weak market conditions.
That supply-and-cost backdrop also helps explain why mining stories now overlap with infrastructure coverage such as Bitcoin mempool upgrades and BIP-360 progress; when block subsidies are thinner, fee dynamics and operational efficiency matter more to who can stay online.
The Bitdeer GPU figures matter because CoinShares’ over-US$70 billion AI/HPC contract tally is a sector-wide claim, while Bitdeer’s 2,096 deployed GPUs and approximately US$21 million ARR show how that shift is being monetized at the company level.
For investors, miner stress also needs to be read next to AICryptoCore’s coverage of spot Bitcoin ETF inflows on April 6: if demand through regulated wrappers improves while the cost curve stays near US$79,995 per BTC, the strongest operators gain more breathing room than the weakest ones.
No direct regulatory catalyst appears in the sourced record for this March roundup. The better-supported explanation is a mix of post-halving economics, rising network difficulty and hashrate, and a capital reallocation into AI/HPC services, which is why the evidence favors miner diversification over any verified return to GPU-based crypto mining.
Disclaimer: This article is for informational purposes only and does not constitute financial or investment advice. Cryptocurrency markets remain volatile, and readers should do their own research before making decisions.
Disclaimer: This article is for informational purposes only and does not constitute financial or investment advice. Cryptocurrency and digital asset markets carry significant risk. Always do your own research before making decisions.
