Blockchain data can predict drug overdoses, says Chinalysis
Blockchain transaction data linked to cryptocurrency payments could provide an early signal of drug crises, according to a new report from blockchain analytics firm Chinalysis.
The study, which examines illicit market activity around the darknet drug and fraud ecosystems, estimates that crypto flows linked to darknet markets will reach nearly $2.6 billion by 2025, with online drug markets continuing to thrive despite frequent law enforcement activity. Sellers typically receive payments from private wallets and centralized exchanges.
Beyond measuring criminal activity, Chinalysis argues that the data can track real-world health outcomes. Crypto payments to suppliers of fentanyl precursor chemicals have been reduced from mid-2023. Months later, overdose deaths dropped in the United States and Canada after reaching record highs in 2023.
According to the report, tracking transactions linked to early adopters can provide three to six months' advance warning of overdose trends before they show up in official public-health statistics.
Crypto drug purchases linked to high hospitalizations
The analysis compared transaction data with Canadian hospital records. Small payments of less than $500 have not shown any clear association with emergency visits or death. Large transfers were associated with increases in stimulant-related hospitalizations and deaths, suggesting that the transactions reflected bulk purchases or redistribution rather than private consumption.
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“Money moves before the crisis happens. People buy drugs before they redistribute them, and users use them before they overdose and seek medical care,” the report says.
Following the closure of the Abacus market in July 2025, the activity quickly migrated to alternative platforms such as Torzone, the report revealed. He said that vendors routinely re-offer on platforms and relocate after an outage.
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The amount of the fraud shop has dropped to $87.5 million.
Fraudulent marketplaces have shown a different trend. Onchain's volume has fallen from about $205 million to $87.5 million over the past year, but activity has shifted to wholesale operations, particularly on Telegram's Chinese-language networks that handle large sales of stolen payment data.
Chainalysis reported on Friday that crypto transactions linked to suspected human trafficking networks will increase by 85% by 2025, reaching hundreds of millions of dollars. The activity was mostly associated with Southeast Asia and was closely linked to fraud syndicates, online casinos and Chinese-language counterfeiting groups, according to the report.
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