Secure Digital Markets sent $1 million to Kraken via Bitcoin’s Lightning Network on January 28, 2026, settling the transaction almost instantly with minimal fees – the first publicly disclosed seven-figure payment on the protocol.
Lightning Network was designed to handle small daily transactions, typically less than $100. The protocol functions as a second layer on top of Bitcoin
BTC
$69,179
24h volatility:
1.9%
Market capitalization:
$1.39T
Flight. 24h:
$53.15 billion
blockchain, using pre-funded payment channels to speed transfers and reduce costs compared to the slow pace of on-chain settlements. This layer was designed before 2017 and is constantly tested to know its limits.
But this new pilot with Kraken shows that it can also handle institutional-sized payments, thanks to Voltage’s managed node infrastructure, which provides the availability and liquidity guarantees that large players need, according to the announcement.
Mostafa Al-Mashita, co-founder of SDM and head of sales and commerce there, described the test as a turning point. “The transfer of $1 million to Kraken via Lightning Network marks a definitive shift in global settlement architecture,” he said. “We are past the era of questioning Bitcoin’s institutional capacity. Now the only variable remaining is how quickly lagging institutions will abandon existing systems.”
Lightning Network capacity and usage show growth
Lightning’s total capacity reached an all-time high of over 5,600 BTC last December, up from around 4,200 BTC earlier in 2025, according to data from Bitcoin Visuals. The network currently operates with approximately 17,300 nodes and 40,900 active channels, according to memory space data, down from the maximum number of nodes in previous years, but with consolidated channels of greater capacity.
Graph of Lightning Network capacity over time | Source: Bitcoin Visuals
This behavior appears to be linked to the acceleration of merchant adoption in recent years. Lightning now handles about 15% of Bitcoin payments for merchants, nearly double the 2023 rate, according to the Coinlaw report. Major exchanges like Binance have added substantial liquidity to their Lightning channels, driving much of the capacity growth. Even large merchant payment companies, like Square, have authorized its use at the end of 2025.
An infrastructure provider, LQWD Technologies, reported moving more than 2,012 BTC across 2 million transactions in December, with daily volumes reaching 7,500.
If SDM’s pilot signals broader institutional interest, Lightning could evolve from a micropayments tool to a legitimate settlement network for high-value transfers. The infrastructure appears ready; the question is whether traditional finance will follow these innovations.
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