Universe from Bitcoin block #881
Observers possible可能诞生观察者
Grade S · observers possible

Galaxies, stars, planets and chemistry all exist, and stars live long enough for complex processes to unfold. Under this model the conditions for observers are met. Only a few percent of blocks get this far.
| Bitcoin block | #881 | |
|---|---|---|
| Block hash | 0x00000000b715b0c5b5812ff95850038bf5af4e00112511d9d673d9043f26fbe2 | mempool.space |
| Block time | 2009-01-18 06:11 UTC | |
| Leading zeros | 8 hex digits | |
| Dimension D | 3.000 (integer) | ours 3 |
| Fine-structure constant α | 1/137.45 | 0.997× ours (1/137.04) |
| Speed of light c | 303,953 km/s | 1.014× ours |
| Planck constant h | 6.719×10⁻³⁴ J·s | 1.014× ours |
| Elementary charge e | 1.622×10⁻¹⁹ C | 1.012× ours |
| Gravitational constant G | 8.608×10⁻¹¹ m³kg⁻¹s⁻² | 1.290× ours |
| Gravitational coupling αG | 1.253× 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.
Mint status unavailable.
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 (881). 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.