Universe from Bitcoin block #208,645
Big Crunch大挤压
Grade A · no observers

The expansion of this universe does not last. Gravity wins, the expansion halts and reverses, and everything is compressed back toward a single point. Whatever structure formed on the way out is destroyed on the way back.
| Bitcoin block | #208,645 | |
|---|---|---|
| Block hash | 0x00000000000003c1a605e9a51d24969b13f09fe1d676f8d926dbbfaa5af14612 | mempool.space |
| Block time | 2012-11-19 20:39 UTC | |
| Leading zeros | 13 hex digits | |
| Dimension D | 3.000 (integer) | ours 3 |
| Fine-structure constant α | 1/138.65 | 0.988× ours (1/137.04) |
| Speed of light c | 257,101 km/s | 0.858× ours |
| Planck constant h | 8.773×10⁻³⁴ J·s | 1.324× ours |
| Elementary charge e | 1.697×10⁻¹⁹ C | 1.059× ours |
| Gravitational constant G | 2.240×10⁻¹¹ m³kg⁻¹s⁻² | 0.336× ours |
| Gravitational coupling αG | 0.297× 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 (208,645). 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.