Bitcoin's mining difficulty recently adjusted downward to 83.68 T, a decrease of 0.05%, at block height 848,736 on June 20. This adjustment aims to maintain a consistent time frame for adding new blocks to the blockchain, ensuring the network's stability. The average network hashrate, which measures the computing power of the Bitcoin network, currently stands at 598.97 EH/s, indicating a secure network.

The decrease in mining difficulty suggests a reduction in competition among miners vying to solve the mathematical problem required to add the next block and claim the block reward. This decrease may be attributed to various factors, including market conditions, electricity costs, and the availability of mining hardware. The adjustment in mining difficulty is a self-regulating mechanism that occurs every two weeks or after 2,016 blocks are added to the blockchain.

A higher average network hashrate indicates a more secure network, requiring significant computational power to launch a successful attack. The current hashrate of 598.97 EH/s demonstrates the robustness and security of the Bitcoin network. This adjustment ensures that the network remains stable, with new blocks being added consistently, maintaining the integrity of the blockchain.

The Bitcoin network's self-regulating mechanism is designed to adapt to changes in the network, ensuring stability and security. The adjustment in mining difficulty and the average network hashrate work together to maintain a consistent and secure network. This balance is crucial for the network's longevity and ability to withstand potential attacks.

In conclusion, the downward adjustment in Bitcoin's mining difficulty and the current average network hashrate demonstrate the network's ability to adapt and maintain stability. This self-regulating mechanism ensures the consistent addition of new blocks to the blockchain, upholding the security and integrity of the network.