This is UUID. The issues you are concerned about are here: Universal Unique Identification Code, algorithm reference java.util.UUID.java, standard RFC4122 for UUID
The total number of UUIDs has reached 2^128 (3.4×10^38). The possibility of randomly generating two identical UUIDs is very small, but there is still the possibility of repetition, so the generation algorithm usually adds non-random parameters. such as time, to further reduce the likelihood of duplication.
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This is UUID. The issues you are concerned about are here: Universal Unique Identification Code, algorithm reference java.util.UUID.java, standard RFC4122 for UUID
The total number of UUIDs has reached 2^128 (3.4×10^38). The possibility of randomly generating two identical UUIDs is very small, but there is still the possibility of repetition, so the generation algorithm usually adds non-random parameters. such as time, to further reduce the likelihood of duplication.
uuid: https://www.uuidgenerator.net/
guid: https://guidgenerator.com/onl...
Examples of available libraries: https://packagist.org/package...
Use uuid