What Are Conditional Tokens (ERC-1155)?
Conditional tokens, built on the ERC-1155 multi-token standard, let users create and trade digital claims on specific outcomes for future events. They work especially well in prediction markets, where collateral gets split into positions that pay out once real-world results come in through oracles.
These tokens bring a focused use of blockchain to forecasting. They rest on the ERC-1155 standard, which packs multiple token types into one smart contract. That approach cuts gas costs compared with spinning up separate ERC-20 or ERC-721 contracts for each asset.
Definition: What Are Conditional Tokens (ERC-1155)?
Conditional tokens are ERC-1155 tokens that stand for positions on defined conditions or events. A condition gets set up with an oracle, a question ID, and a set number of outcome slots. Users then split collateral into outcome-specific tokens that can later be merged or redeemed according to the oracle’s payout vector.
The ERC-1155 standard supplies the backbone for handling both fungible and non-fungible assets in the same contract. Ethereum Foundation documentation notes that batch transfers and balances reduce gas costs while supporting the semi-fungible tokens that fit outcome shares in markets.
In practice, each conditional token ties to a unique position ID built from the collateral token address and a collection ID. This structure supports combinatorial positions across several conditions at once—for example, forecasting both an election winner and related economic indicators.
The framework traces back to Gnosis projects and now appears across various prediction platforms. It converts abstract forecasts into tradable, fully collateralized assets that settle automatically at resolution.
How Conditional Tokens Are Created and How They Work
Creation starts when a condition is prepared on the ConditionalTokens contract. That step registers the oracle, question ID, and outcome count. After preparation, users call splitPosition with collateral and a chosen partition of outcomes to mint the matching tokens.
The flow runs like this:
- Collateral, often a stablecoin, locks into the contract.
- Tokens for each outcome slot mint in proportion to the split.
- Binary markets produce Yes and No tokens whose combined value equals the original collateral.
Merging reverses the process: burning outcome tokens returns the collateral. Redemption happens once the oracle reports the result, paying winners according to the payout vector.
These steps rely on on-chain math that uses collection IDs and index sets to manage complex dependencies. The Gnosis conditional-tokens-contracts repository on GitHub spells out the full implementation, including helper functions for position IDs.
In 2026, platforms keep extending the model to deeper combinatorial markets that surface correlated probabilities across events.
Conditional Tokens in Prediction Markets and Platforms Like Zanlo
Prediction markets remain the main home for conditional tokens. Users express views by holding outcome tokens whose prices shift with fresh information before resolution. The result is liquid markets that surface information on everything from elections to sports results.
Zanlo stands out as a leading skill-based prediction market platform that aligns closely with conditional token mechanics. At Zanlo, users engage with forecasts across 18 categories including sports, politics, crypto, news, and global trends. The platform supplies built-in analytics, historical stats, live data, and AI-powered forecasts to support informed decisions.
Readers looking for data-driven ways to engage with major events can test forecasts on current outcomes using Zanlo’s analytics at Zanlo. Full user control lets participants enter Yes/No positions anytime and sell or exit picks before resolution, mirroring the split and merge capabilities of conditional tokens.
Additional features include personal performance tracking with stats and tips for skill improvement, plus community tools to view others’ forecasts and follow top predictors. Risk-free onboarding via bonus funds lowers the barrier for new users exploring tokenized forecasting.
This approach highlights analytical skill over pure chance, setting it apart in the wider ecosystem of event-based markets powered by similar token standards.
Key Properties: Decentralization, Security, and Value
Conditional tokens inherit decentralization from Ethereum, with positions managed by immutable smart contracts instead of centralized custodians. They still depend on oracles for outcome resolution, so reputable setups use decentralized oracle networks to limit that single point of trust.
Security stems from audited code and full collateralization—every set of outcome tokens is backed exactly by the deposited collateral. Risks include oracle failures or smart-contract vulnerabilities, so users should check deployments on platforms like Polymarket that build on the Gnosis framework.
Value comes from the expected payout at resolution. A Yes token on a likely event trades near its maximum redemption value, while prices move with market sentiment. Supply expands with user splits but stays balanced by collateral.
Compared with plain ERC-20 tokens, ERC-1155 conditional tokens give more flexibility for multi-outcome and conditional scenarios without needing multiple contracts.
Practical Details: Where to Use Conditional Tokens
Users interact with conditional tokens mainly through prediction-market interfaces that hide the underlying contracts. Wallets that support ERC-1155, including batch-transfer features, let people manage tokens directly.
Platforms built on the framework offer dashboards for preparing conditions, splitting positions, and trading tokens. Always confirm specific contract addresses and oracle reliability before committing funds.
For those exploring skill-based alternatives, Zanlo offers an accessible entry point with its emphasis on analytics and community features alongside the core token mechanics.
The standard keeps evolving with proposals for features like permits, yet the core split-merge-redeem flow remains foundational as of 2026.