As seen on Decrypt
Move money at scale —at a radically low cost.
Nume is the first flat-fee payments rollup on Ethereum. Deployed on Polygon zkEVM.
AUDITED BY: PASHOV AUDIT GROUP
Built to hyper scale efficiently
HORIZONTALLY SCALABLE
Our protocol is built to support massive scale. If existing rails have not met your scaling needs, look no further.
Instant Confirmation
No blockchain delays, payments are confirmed instantly on Nume. Close the loop for your customers.
FLAT FEES
Nume eliminates gas price as a concept and instead offers flat fees priced in DAI for each supported operation type
Fast on-chain settlement
Settlements have instant finality - which means settled funds are available to be withdrawn on Polygon zkEVM immediately post settlement.
FIRST FLAT-FEE LAYER-3 ON POLYGON ZKEVM
Inheriting Ethereum's security trustlessly
TOKEN TRANSFERS
0.05 DAI
NFT MINTS
0.10 DAI
NFT TRANSFERS
0.05 DAI
NFT TRADES
0.30 DAI
WITHDRAWALS
0.10 DAI
FIRST FLAT-FEE LAYER-3 ON POLYGON ZKEVM
Inheriting Ethereum's security trustlessly
TOKEN TRANSFERS
0.05 DAI
NFT MINTS
0.10 DAI
NFT TRANSFERS
0.05 DAI
NFT TRADES
0.30 DAI
WITHDRAWALS
0.10 DAI
EVM addressability
The Nume Payments Rollup is fully EVM-addressable and sits behind an EVM wrapper, which means you can transact on Nume with your favourite Web3 wallets!
Nume premium- THE FIRST ROLLUP SUBSCRIPTION MODEL
UNLOCK UNLIMITED OPERATIONS
NO PER TRANSACTION FEES
JUST
1.99 DAI PER MONTH
(Introductory offer)
UNLOCK UNLIMITED OPERATIONS
NO PER TRANSACTION FEES
JUST
1.99 DAI PER MONTH
(Introductory offer)
Designed From First Principles
The Nume Payments rollup utilizes hardware enclaves to prove the provenance of a state update to the contract. Rather than proving the validity of the individual transactions on-chain (which requires zero-knowledge proofs and on-chain data), the Nume protocol instead proves that a new state update (to users' balances) is the result of executing the correct code. This turns out to be a vastly more economical approach to trustless scaling, with other desirable consequences too.
INSTANT SETTLEMENT FINALITY
Nume posts state updates to Polygon zkEVM periodically. Settlements are either immediately accepted or rejected by the contract. Users can hence initiate a withdrawal of their funds immediately after a settlement.
Data Availability
The transaction data for every settlement is cryptographically guaranteed to be made available on IPFS and the IPFS location is guaranteed to be made available on-chain.
Non-custodial
The Nume protocol is non-custodial. Settlements with unauthorized changes to users’ balances will not succeed on-chain.
Decentralized Governance
(coming soon)
Nume's on-chain as well off-chain code (that executes inside the hardware enclave) will both be governed by a decentralized committee.
Frequently asked questions
How do I get started?
To see Nume’s capabilities in action, get started at bridge.numecrypto.com!
Other helpful links:
Tech docs: docs.numecrypto.com
Nume’s Block Explorer: explorer.numecrypto.com
Setup guides: Get started here
Need support? Join our Discord community.
What is Nume?
Nume is the first flat-fee payments scaling rollup on Ethereum, deployed on Polygon zkEVM. You can avail of Nume’s features such as flat fees, instant confirmation and horizontal scalability for supported operations: token transfers, NFT transfers, NFT trades, NFT mints and network withdrawals.
Get started at bridge.numecrypto.com
How does Nume provide flat fees?
The Nume payments rollup can batch an unlimited number of transactions at fixed and low on-chain costs, while trustlessly inheriting Ethereum’s security. This means that the marginal cost of a transaction is zero, enabling the protocol to offer entirely gas-abstracted business models.
How does Nume's rollup work?
The Nume protocol utilizes hardware enclaves to run the offchain algorithm that computes an updated state root from a set of transactions; the enclave signs the new root with a private key known and accessible only to the enclave itself. When a settlement is made to the contract, the contract simply verifies if the public address corresponding to enclave’s private key signed the new root. Hence settlement finality is instant. The rollup is also unique in how it provides its data availability guarantee. Most scaling solutions have to choose between posting transaction data on-chain at higher processing costs (like zk-rollups) vs putting it off-chain with weaker security guarantees (e.g. using a Data Availability Committee). Nume keeps transaction data off-chain *while* proving its irrefutable availability as well as correctness of the resulting balance updates (to users’ funds) on-chain. Transactions are posted to IPFS and the enclave first downloads them before computing the state update, hence verifying that the data has been made available in the specified IPFS location.
To learn more about how the contract establishes provenance of an enclave’s address and the source code the enclave runs, please see the medium blog on nume secutity model.
Is Nume EVM Compatible?
No. While Nume is not EVM compatible currently, it is already EVM addressable and compatible with most EVM wallets. Users can add Nume Mainnet as a network in their EVM wallet and start transacting on the network today! EVM Compatability is coming in 2024.
Can I add the Nume network to my wallet?
You can access the Nume network with most EVM compatible wallets. Network settings:
Network Name: Nume
New RPC URL: https://rpc.numecrypto.com
Chain ID: 7100
Currency symbol: DAI
Block explorer URL: https://explorer.numecrypto.com/
View instructions for adding Nume Mainnet to the most popular EVM wallets here.
Does Nume have a native token?
No. Nume’s network token is DAI. All network fees are deducted in DAI.
Which tokens are currently supported on Nume?
Nume supports ETH, WBTC, DAI, USDC, USDT and MATIC. Keen to see another ERC-20 token? Let us know on Discord or get in touch with us on X. Note:Token onboarding will eventually be permissionless.
What is Nume Premium?
Nume Premium is a trustless subscription service that the Nume protocol offers. For 1.99 DAI per month, subscribers can unlock unlimited operation on the Nume network which currently include: token Transfers, NFT transfers, NFT mints, NFT trades and network withdrawals. Cancel anytime. Learn more about how Nume Premium works here
How do I get in touch with the team?
Is Nume open-source?
Partially. Nume’s contracts are open-source, audited and verified on block explorer. Nume’s off-chain software that executes inside the hardware enclave is not yet open source.
