Web3 terms in ESPL

Blockchain, wallets, and tokens

A short guide to the terms shown in the app

Some ESPL challenges may use blockchain transactions, smart contracts, wallets, or JPYC.

Use the current in-app instructions for setup and transactions. Confirm the asset, network, amount, recipient, and fee before approving anything.

01 / What is Web3

Three basic terms

These terms help explain screens related to blockchain transactions. The exact options depend on the current app version and challenge.

Distributed ledger

A shared record maintained by multiple computers. Public blockchains allow transaction records to be checked with a block explorer.
Smart contract

A program that runs on a blockchain. In ESPL, a challenge may use one for sponsorship and result conditions.
Wallet

A tool for viewing an address and approving supported blockchain transactions. Follow the current in-app setup and recovery guidance.

03 / Token & NFT

These are common token standards. Availability and use depend on the current app version, challenge, asset, and network.

01 / ERC-20

Fungible token

Currency-like tokens — including JPYC — that represent an “amount”. One coin is interchangeable with another. Sponsorship and distribution use this standard.
02 / ERC-721

Non-fungible token (NFT)

Tokens that are unique one-by-one. Used for things like walking achievement certificates or serialized commemorative badges where uniqueness matters.
03 / ERC-1155

Multi-token

A hybrid standard that can mint many tokens against a single ID. Suited to efficient distribution, such as a season-limited badge handed out at scale.

A challenge may use JPYC for sponsorship. Check the asset and network shown in the app, then see the JPYC page.