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NumberBlocks

Fully on-chain. No IPFS, no API server.

Numbered blocks, polished by Ethereum.

10,000 NumberBlocks, each backed by 1,000 uniBlocks. Every block transforms through six stages — RAW to PRISM — one tick every six Ethereum blocks. Seal one to freeze it into a specimen card.

Backing
1,000 UB / NB
Swap fee
1.0% total
Stages
6, on-chain

#144SANDED 17/100

Now showing NumberBlock 144

How it works

Backed, always

Every NumberBlock needs 1,000 uniBlocks behind it, minted fresh the moment the block is. Spend the backing and the protocols cleanup burns the highest unsealed block in the wallet. Sealed blocks are protected — actions that would under-back them revert.

Transformed by time

Unsealed blocks earn one transformation point every six Ethereum blocks, moving through RAW, SANDED, POLISHED, GLOSSY, MIRROR, and PRISM. Sealing freezes the current state into a specimen card; unsealing resumes exactly where it stopped.

Mint Paths

Genesis blocks #1–5,000 mint from official pool buys — one per 1,000 UB of swap output, each pair-minting its own fresh backing. Sale blocks #5,001–10,000 mint through the five-phase BlocksSale. When a block burns via backing cleanup, a Reborn id (#10,001+) can mint later from the pool — new seed, new look.

Eight ways a number is special

Read the full guide

Every token id is classified on-chain. Each property stamps a badge on the art and a trait in the metadata.

  • Prime

    id has no divisors other than 1 and itself

  • Palindrome

    id reads the same left-to-right and right-to-left

  • Perfect Square

    id is n times n for some integer n

  • Power of Two

    id is 2 to the k for some k

  • Fibonacci

    id appears in the Fibonacci sequence

  • Triangular

    id is n(n+1)/2 for some integer n

  • Repdigit

    every digit of the id is identical

  • Round

    id is a multiple of a power of ten