Difficulty Adjustment

The POW and Recycle difficulties are adaptively adjusted every 100 blocks based on the following 4 cases.

  1. Registrations exceed the target and there were more recycle registrations than pow registrations?
    burn_cost = burn_cost * ( burn_regs_this_interval + target_regs ) / 2 * target_regs

  2. Registrations exceed the target and there were not more recycle registrations than pow registrations?
    pow_difficulty = pow_difficulty * ( pow_regs_this_interval + target_regs ) / 2 * target_regs

  3. Registrations do not exceed the target and there were more recycle registrations than pow registrations?
    burn_difficulty = pow_difficulty * ( regs_this_interval + target_regs ) / 2 * target_regs

  4. Registrations do not exceed the target and there were not more recycle registrations than pow registrations?
    pow_difficulty = pow_difficulty * ( regs_this_interval + target_regs ) / 2 * target_regs

Viewing current difficulty

Using the cli

1btcli list_subnets
2NETUID  NEURONS  MAX_N   DIFFICULTY  TEMPO  CON_REQ  EMISSION  BURN(τ)
31       691    1.02 K   198.08 T    99     None     28.44%   τ4.75710
43      4096    4.10 K   320.81 T    99     None     71.56%   τ1.00000
5    DIFFICULTY: Current proof of work difficulty
6    BURN: Current cost to register a key via recycle registration.
btcli
Testnet