Four months after Bitcoin’s second halving event slashed block rewards from 25 BTC to 12.5 BTC, the mining landscape in late November 2016 tells a story of resilience and rapid industrialization. Despite the reward cut, which theoretically should have squeezed miner margins, the network has continued to grow at a remarkable pace.
TL;DR
- Bitcoin’s second halving occurred on July 9, 2016, reducing block rewards from 25 BTC to 12.5 BTC
- By November 21, BTC price stood at approximately $739, making mining highly profitable despite the reward cut
- Network hash rate continued climbing steadily four months post-halving
- China maintained dominance over global Bitcoin mining, controlling an estimated 70% or more of hash rate
- ASIC mining hardware, particularly Bitmain’s Antminer series, solidified its dominance over GPU mining
The Post-Halving Mining Economics
When Bitcoin’s second halving activated at block 420,000 on July 9, 2016, the immediate effect was a 50% reduction in block rewards. Miners who had been earning 25 BTC per block suddenly received just 12.5 BTC. In raw terms, daily new Bitcoin issuance dropped from approximately 3,600 BTC to 1,800 BTC.
However, timing was on the miners’ side. Bitcoin’s price had been climbing throughout 2016, rising from roughly $430 at the start of the year to around $650 by the halving date. By November 21, BTC had pushed even higher, trading at approximately $739 according to CoinMarketCap data. This meant miners were earning roughly $9,244 per block in BTC rewards alone — a figure that, while lower than pre-halving dollar revenues at peak prices, remained comfortably profitable for efficient operations.
Hash Rate Defies Expectations
One of the most significant developments post-halving was the continued growth in network hash rate. Historically, halving events carry the risk of miner capitulation — when the reward drop makes mining unprofitable for some participants, forcing them offline and reducing network security. Instead, the opposite occurred.
By late November 2016, the Bitcoin network hash rate had been climbing steadily, reflecting growing investment in mining infrastructure. The difficulty adjustment mechanism, which recalibrates every 2,016 blocks (approximately two weeks), kept pace with this growth, ensuring that blocks continued to be found roughly every ten minutes.
Block 440,000 was mined around November 21, 2016, putting the network roughly 20,000 blocks past the halving — a testament to the sustained pace of block production despite the reduced incentive structure.
The ASIC Era Solidifies
Late 2016 marked a critical transition in Bitcoin mining hardware. While GPU mining had been the norm in Bitcoin’s earlier years, by November 2016, Application-Specific Integrated Circuit (ASIC) miners had become the undisputed standard. Bitmain’s Antminer S7 and the newly released Antminer S9 represented the cutting edge of mining efficiency.
The Antminer S9, which began shipping in mid-2016, offered approximately 14 TH/s at around 1,375 watts — a dramatic improvement in efficiency over previous generations. This hardware arms race meant that individual miners with older or less efficient equipment found it increasingly difficult to compete, accelerating the trend toward industrial-scale mining operations.
China’s Mining Monopoly
The geographic concentration of Bitcoin mining became increasingly pronounced in late 2016. China controlled an estimated 70% or more of the global Bitcoin hash rate, leveraging cheap electricity in regions like Sichuan, Xinjiang, and Inner Mongolia. Chinese mining pools — including AntPool, F2Pool, BTCC, and BW Pool — dominated the block discovery charts.
This concentration raised ongoing concerns about network centralization and regulatory risk. If Chinese authorities were to crack down on mining operations, the impact on Bitcoin’s network security could be significant. However, at this point in November 2016, there were no signs of imminent regulatory action, and Chinese miners continued to expand aggressively.
Altcoin Mining Landscape
While Bitcoin mining required specialized ASIC hardware, GPU mining remained viable for alternative cryptocurrencies. Ethereum, trading at approximately $9.62 on November 21, was increasingly attracting GPU miners who found Bitcoin’s ASIC-dominated landscape inaccessible. Monero, priced at around $6.80, offered another GPU-friendly option with its CryptoNight algorithm designed to resist ASIC mining.
Litecoin, trading at $3.94, used the Scrypt algorithm and had its own ecosystem of ASIC miners, though the market was considerably smaller than Bitcoin’s. Dash, at $8.58, employed a unique X11 algorithm and two-tier network with masternodes alongside traditional proof-of-work mining.
Why This Matters
The post-halving mining landscape of late 2016 set the stage for Bitcoin’s extraordinary 2017 bull run. The fact that hash rate continued to grow despite the reward cut demonstrated the fundamental strength of Bitcoin’s incentive model. Miners who invested in efficient hardware and cheap electricity were rewarded handsomely as Bitcoin’s price continued its upward trajectory through the end of 2016 and into the historic rally of 2017.
The industrialization of mining during this period — particularly the shift toward ASIC hardware and large-scale Chinese operations — established patterns that would define Bitcoin mining for years to come. Understanding this era is essential for grasping how Bitcoin evolved from a niche experiment into a globally significant financial network with billions of dollars in daily mining revenue at stake.
Disclaimer: This article is for informational and historical purposes only. It does not constitute financial advice. Cryptocurrency mining involves significant risk and technical complexity. Always conduct your own research before making any investment decisions.
price went from ~$650 to $739 within months of the halving and people were still calling crypto dead. the miner capitulation narrative never gets old
the price recovery from $650 to $739 proved that market forces adjust faster than people think. halving fears were overblown.
market forces adjusted because btc was still massively underpriced at $739. the halving just forced weak hands out. totally different situation from the 2024 halving where price was already at ATH levels
asic_tears BTC at 739 made 12.5 rewards massively profitable. the real squeeze hit operations running outdated hardware on thin margins. efficiency was everything
asic_tears BTC at 739 with 12.5 rewards was still massively profitable. the real squeeze hit GPU miners who refused to adapt. same story every halving cycle
gpu miners didnt refuse to adapt, the S9 made adaptation impossible. a 14nm ASIC at 0.1 j per gh versus a radeon drawing 10x that was a hardware cliff. no amount of mindset fixes physics
0.1 J per GH ended GPU mining overnight, no mindset survives physics. the S9 was a generational leap the way the S21 is now
China controlling 70% of hash rate and nobody batted an eye back then. different times
The second halving in 2016 was the turning point from hobbyist mining to professional operations. We’re seeing the same pattern — the miners who invested in next-gen ASICs before the halving are the ones increasing their hashrate now while others capitulate.
Hashrate climbing four months post-halving is textbook miner economics. The miners with the best energy contracts and newest ASICs survive the margin compression and actually increase their hashrate because their competitors are shutting down. Network effect of efficiency.
china’s 70% hash rate dominance in 2016 is shocking compared to today’s more distributed mining landscape.
and people today complain about US mining dominance. china had literal mining cities dedicated to btc. the concentration risk was way worse back then
Lena S. people worried about US mining dominance now. china had literal warehouse cities full of miners in 2016. the concentration was on another level
BitmainVictim china’s 70% hash rate dominance in 2016 was wild compared to today’s distributed mining
BitmainVictim 70% hash rate in china and bitmain basically controlled the hardware supply too. total monopoly on both mining and manufacturing
What nobody mentions is that mining difficulty follows hashrate with a two-week lag. If hashrate keeps climbing post-halving, difficulty adjusts up, and margins compress further. The miners pushing hashrate higher are essentially in an arms race that only the most efficient can win.
fee_market_watch hit it. two week difficulty lag after halving means the most efficient miners actually increase share while weak hands bleed out. natural selection at the protocol level
Bitmain controlling both hardware supply and manufacturing while China had 70 percent of hash rate. absolute monopoly that makes todays mining pool concentration look decentralized
739 four months after rewards halved and everyone was shocked price rose. daily issuance dropped from 3600 to 1800 coins while exchange demand held. the 2017 run started right here and almost nobody connected the dots at the time
hindsight makes it look obvious but at 739 half the timeline was calling a top. the supply shock thesis only becomes consensus after it pays
issuance cut in half and price doubled within a year, and 2016 was somehow the cycle everyone called boring
china at 70 percent of hash rate with bitmain selling the shovels. the concentration debates we have now are tame by comparison