[ANN] BNBBANG [BANG] — every BNB block hash is a universe. Almost all of them are dead.
Every BNB block hash is a different universe.Free to detonate and look around. Mint as an NFT if you like — first 1,000,000, 10 per address, gas only.Almost all of them are dead. That is the point.https://bnbbang.com/assets/btt/home-hero.jpg Every three seconds, BNB Chain closes a block. The hash is thirty-two bytes. Nobody picked them.
Those bytes get read as physics — gravity, the speed of light, Planck's constant, the fine-structure constant, the number of spatial dimensions — and the resulting universe is run from the first second to heat death.
Most fail early: no atoms, no stars, or space comes out four-dimensional and nothing can orbit anything. About 2% grow something. A thinner slice could, in principle, grow an observer.
The rest are dead.
Free to look, cheap to keepThe technical details and the open-source checks are further down; if you just want to play, the site link is at the top.
Detonating is free and off-chain. No wallet is needed to look around.
The first 1,000,000 mints cost no mint fee: 10 per address, gas only. On-chain gas is still paid by you. Two gates, both apply: the first 1,000,000 mints globally, and 10 per address. Each free mint also issues 50 BANG — 500 BANG if all ten are used. After the free phase: 0.01 BNB per mint, 600 BANG each, same for every grade, not scaled by rarity. Hard cap 1,707,000 (read 17/07; BNB launched in July 2017). When the cap is hit, minting stops.
A dead universe already owned can be Rescued: BANG is burned to nudge the constants toward the observer-possible side. Current skim is 0, so 100% is burned; the contract cap on skim is 20%. The amount actually burned is stamped on the NFT as burnedOn.
A universe intervened on in the sandbox can be minted as a second collection, MirrorCrafted. Fee: 20% burned / 80% to the treasury. Parameters = derive(originHash) + ops; a third party can recompute them. Naming burns BANG too: base price 2,000 BANG, doubled by name length, doubled again on each rename, 100% burned. Native and Crafted registries are independent — the same name can be claimed once on each. Homoglyph squatting is blocked.
There is a built-in market, priced in BNB or BANG. Fees: 1% on BNB orders, 5% on BANG orders (contract hard cap 10%).
One block, one universe, one ownerThe same hash always produces the same universe. That is determinism. Exclusivity is the other half, and it is enforced on-chain.
A hash can be minted only once. MirrorUniverse stores mapping(bytes32 => uint256) tokenOfHash. A second mint of the same block hash reverts with AlreadyBanged. The first confirmed transaction owns it; after that the hash cannot be minted again. This is a contract-level check, not a frontend filter. Source:
contracts/src/MirrorUniverse.sol.
BNB mainnet has ~117.4 million blocks as of writing, and the height keeps rising. The NFT hard cap is 1,707,000. Under 1.5% of current blocks will be minted. The rest stay free to detonate: universes anyone can look at, with no owner.
The 23 constants are expanded from the hash, so different hashes give different constants and different endings. Which block is picked is not a serial number — it is the entire content of that NFT. Genesis, the block of a first transaction, a height from a date that matters: the site takes latest / genesis / random / a height / a pasted hash. It does not search by date. Look up that day's block height on BscScan, then paste the height.
The token is fuel, not a claimBANG is a BEP-20. Cap 1,000,000,000.
Zero premine — totalSupply is 0 at deployment.
Of that cap, 600,000,000 is mint rewards: only the NFT contract can issue it, and the owner has no function that touches it. Another 200,000,000 is referral rebate — tier-1 10% / tier-2 5% of the invitee's mint reward, paid after manual review, each on-chain grant carrying a reason. Sybil (self-invite, bulk alts, farming) is not paid. That path is centralized, not auto-settled by the contract.
The last two pools are 100,000,000 each. Team sits in BangVesting: linear per-second unlock over 24 months from deployment, no revoke, no owner backdoor. Exchange listing fees sit in BangPromo: every grant carries a reason on-chain. A spend bucket, not a listing date.
Expected actual issuance is about 474 million. After 1,707,000 NFTs have been minted, anyone can call sealRewards() and permanently void the remaining ~126 million. No permission is required; the owner cannot stall it.
What the hash decidesA BNB block is pointed at — latest, genesis, random, a height, or a pasted hash — and the engine expands those 32 bytes into 23 constants: speed of light, Planck's constant, elementary charge, gravitational constant, fine-structure constant, spatial dimension, and the rest. From the singularity the cosmology runs through inflation, nucleosynthesis, recombination, galaxy formation, and heat death. What comes back is one of twelve endings and a grade, S / A / B / C / D. Anyone holding the hash can recompute the parameters, the ending, the grade, and the cardHash.
Twelve engine verdicts:
- No stable orbits or atoms
- Big Crunch
- Big Rip
- Heat death, no structure
- Black-hole dominated
- No atoms
- No chemistry
- No stars
- Stars but no life
- Observers possible
- No carbon-water chemistry
- Beyond the model's range (D≠3)
About 98% grow nothing. "Observers possible" is rare.
Check it yourself, do not take my wordClone the engine. Point it at a hash.
Derivation engine, AGPL-3.0:
https://github.com/q3579338/bnbbang-enginenode tools/recompute.js <blockhash>
node tools/verify-onchain.js <tokenId>
recompute.js rebuilds parameters, ending, grade, and cardHash from any block hash. verify-onchain.js diffs that local result against the on-chain NFT, byte for byte. The repo ships 292 engine self-checks and 118 on-chain comparison tests.
Contracts, economy, and tests, AGPL-3.0:
https://github.com/q3579338/bnbbang-economyTests, all running real bytecode on a local EVM:
