Part 4: Upgrades
Upgrade History
Phase 0
For historical reasons, the initial configuration of the beacon chain at its genesis was called Phase 0.
Beacon chain genesis took place at 12:00:23 UTC on the 1st of December 2020. The extra 23 seconds comes from the timestamp of the first Eth1 block to meet the genesis criteria, block 11320899. It is a little remnant of proof of work forever embedded in the beacon chain's history.
MIN_GENESIS_TIME |
uint64(1606824000) (Dec 1, 2020, 12pm UTC) |
GENESIS_FORK_VERSION |
Version('0x00000000') |
See the Phase 0 specs for the full description. These specs still apply to the beacon chain today, except where they were superseded by the Altair or Bellatrix upgrades.