blockchain should have been called timechain, it’s a timestamping service To know who was first, you can just record timetables with git and have various mirro

blockchain should have been called timechain, it’s a timestamping service To know who was first, you can just record timetables with git and have various mirrors - if you can trust them to be adversarial such that if one alters its history that mirror gets flagged and rejected, then you have a distributed timestamp you can trust - but at some level of distribution and automation you reinvent blockchain