“Fentanyl Availability on Darknet Markets”, 2020-02 (; similar):
A snapshot of the sale of fentanyl and its analogues across several popular darknet markets between 2 January and 2019-03-27 reveals the amount, types and physical forms available.
Of the 127,541 unique drug listings identified, 13,135 were opioids (10.3% of all drugs), of which 1,118 (0.876% of all drugs) were fentanyl or its analogues. Between 27.3 and 39.3 kilograms of fentanyl and its derivatives were available over the period. The average price of fentanyl was A$99 per gram, while carfentanil was A$26.8 per gram. The shipping methods, cross-market operations and product specialization of the 303 active fentanyl vendors on these darknet markets are also described.
…Method: Data were collected from several Tor websites with a focus on fentanyl products. Data were collected over 84 days (2019-01-02–3m2019-03-27) from 64 ‘scrapes’ of 6 omnibus darknet markets: Berlusconi, Dream Market, Empire, Tochka, Valhalla (‘Silkkitie’) and Wall Street. Each of these markets posted at least 1,000 products across different contraband categories. We report only unique products listed daily by each vendor, excluding repeat listings of the same product where this occurs on each market.
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