Universe from Bitcoin block #421,340
Unstable orbits无稳定轨道 / 无稳定原子的宇宙
Grade B · no observers

In this universe the number of spatial dimensions is not three. Gravitational orbits and the ground states of atoms are both unstable, so matter cannot settle: it either collapses inward or disperses. Nothing lasting can be built from it.
| Bitcoin block | #421,340 | |
|---|---|---|
| Block hash | 0x000000000000000000de500ef7f3b443a48c63e867ccd7d3ba3f0e60c116c6a3 | mempool.space |
| Block time | 2016-07-18 22:23 UTC | |
| Leading zeros | 18 hex digits | |
| Dimension D | 2.000 (integer) | ours 3 |
| Fine-structure constant α | 1/137.34 | 0.998× ours (1/137.04) |
| Speed of light c | 307,454 km/s | 1.026× ours |
| Planck constant h | 6.490×10⁻³⁴ J·s | 0.979× ours |
| Elementary charge e | 1.604×10⁻¹⁹ C | 1.001× ours |
| Gravitational constant G | 8.919×10⁻¹¹ m³kg⁻¹s⁻² | 1.336× ours |
| Gravitational coupling αG | 1.332× ours |
Constants are reported in an external frame. Only α and αG are observable from inside the universe; c, h, e and G can be rescaled without changing what its inhabitants could measure.
Not minted yet — the first confirmed transaction owns it.
On-chain, this universe lives in the same MirrorUniverse contract on BNB Chain as every BNBBANG universe, with blockHash = the Bitcoin block hash and blockNumber = its Bitcoin height (421,340). The contract’s verified flag is false for every Bitcoin-origin universe: BNB Chain cannot look up a Bitcoin hash, so the flag simply does not apply — that is the expected state, not an error. Anyone can confirm the origin by fetching this height from any Bitcoin node or explorer and comparing the hash.