PANews reported on December 17 that according to Grayscale's official news, Horizen ($ZEN) has completed its final block reward halving, marking a significant transformation in the project's token economic model. The new model will no longer undergo halving but will adopt a gradually decreasing token issuance rate. Meanwhile, Grayscale Horizen Trust provides qualified accredited investors with an investment channel for $ZEN without the need to directly purchase or store tokens.