$BTC

To answer your question about whether Node number 4 that you purchased has been "unlocked", I assume you are referring to the distribution of the associated tokens (like $CARV if you are talking about the CARV project) or its release from the vesting period. Since you did not specify the project explicitly, I will assume you are talking about the CARV project based on the context of your previous question, and I will explain the situation accordingly. If you are referring to another project, please clarify that.

For the CARV project:

Purchase Date: If you bought Node number 4 a year ago (around April 2024), it means you participated in the node sales that started in May 2024 (the public launch was in June 2024, with an early sale for whitelisted participants on June 3, 2024).

Vesting and Release Schedule: According to the CARV project information, the node gives you rewards in the form of $CARV or veCARV (a non-transferable token used in governance that can later be exchanged for $CARV).

The portion allocated to node operators is 25% of the total supply (1 billion $CARV), and it is distributed over 4 years after the Token Generation Event (TGE).

Approximately half (50%) of these tokens are released in the first year, with a reduction of 25% every 6 months.