FYI I have a project that has been running for a few years now that injects that NIST Randomness Beacons into the Bitcoin chain, along with a few other random b

FYI I have a project that has been running for a few years now that injects that NIST Randomness Beacons into the Bitcoin chain, along with a few other random beacons: https://github.com/opentimestamps/nist-inject https://github.com/opentimestamps/nist-inject Bitcoin itself is a good randomness beacon, depending on your requirements for timing. But injecting the NIST beacon into Bitcoin improves the security of various statements you can make about Bitcoin blocks, such as knowing that a particular block was created after a point in time. This is relevant to applications using Bitcoin for timestamping, as it prevents undetected back-dating of Bitcoin blocks. It's fair to say this is a real world use-case for the NIST Randomness Beacon. Though AFAIK no-one has ever had to actually use it in anger to validate a contested timestamp.