OPN Checkin Ledger
A simple on-chain check-in ledger with native OPN stake records.
by gugovchik · submitted Jun 2, 2026
Community votes
0
Voting opens when this submission reaches the Top 10 stage.
Overall score
—/ 100
Weighted average across the 5 judging criteria.
Description
01/03
What the builder said.
Written by the team, rendered as the markdown they typed in the submission wizard.
Project snapshot
OPN Checkin Ledger is an on-chain activity ledger deployed on OPN Chain. It lets a user make a check-in with a small native OPN stake, and the contract stores that check-in as a transparent wallet-based record.
The build is intentionally simple: one action creates a check-in entry, and the chain keeps the timestamp, amount, and reclaim status.
Why this matters
A lot of Web3 communities use check-ins, quests, streaks, builder logs, and participation records. Many of those actions are off-chain or handled by centralized dashboards.
This contract explores a minimal on-chain version of that idea: a user proves activity by creating a timestamped check-in record with native OPN.
How the contract works
- The user calls
checkInWithStake()and sends native OPN. - The contract creates a check-in record for that wallet.
- Each record stores the stake amount, check-in time, and reclaim status.
- The contract tracks total check-ins and total staked amount.
- The user can read their check-in count and individual check-in details.
OPN Chain usage
The contract was deployed during the Season 1 window on OPN Chain. A live checkInWithStake() transaction was executed, so the submission includes both deployment proof and interaction proof.
Roadmap
02/03
What ships next.
The builder's own next-quarter plan. Use it to gauge follow-through and ambition.
Current version
The first version of OPN Checkin Ledger is focused on a minimal on-chain activity record:
- Deploy the check-in ledger contract on OPN Chain.
- Test the
checkInWithStake()function with native OPN. - Store check-in amount, timestamp, and reclaim status on-chain.
- Track total check-ins and total staked amount.
- Submit the build for Season 1 review.
Next step
The next stage is to make the check-in flow easier for users:
- Build a simple wallet-connected check-in page.
- Show the connected wallet's check-in history.
- Display total check-ins and total amount staked.
- Add explorer links for every check-in transaction.
- Add clearer UI states for active and reclaimed check-ins.
Feature expansion
After the basic interface is ready, the contract can grow into a broader activity tool:
- Add named check-in campaigns.
- Add daily or weekly check-in windows.
- Add streak tracking.
- Add ERC-20 stake support.
- Improve event indexing for analytics.
Long-term idea
The long-term direction is to turn this into a lightweight participation layer for OPN Chain communities, where builders, users, or campaigns can create transparent on-chain records of activity and engagement.
On-chain proof
03/03
1 contract on OPN Chain.
The chain itself confirmed every deployment is valid, signed by the builder's wallet, and inside the season's window.