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Season 1 · DeFi & Open Finance

OPN Proof Deposit

A native OPN proof-deposit contract for transparent activity verification records.

Stage 1, ReviewDeFi & Open Finance

by nakubodya · submitted Jun 8, 2026

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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.

Verification-oriented deposit

OPN Proof Deposit is a small proof-record primitive deployed on OPN Chain. It lets a wallet create a native OPN deposit that acts as a visible proof of activity, participation, or intent.

The contract is not meant to be a large protocol in this version. It is a compact verification layer: a wallet sends value, the contract records the action, and the record stays readable on-chain.

Why this approach

A lot of builder and campaign activity needs basic proof before anything more complex is added. Users may need to prove that they tested, participated, funded, supported, or interacted with a flow.

Instead of relying only on screenshots or off-chain forms, this contract creates a timestamped on-chain record backed by native OPN.

Contract behavior

  • createProofDeposit() creates a proof deposit with native OPN.
  • Each proof stores amount, proof time, and archive status.
  • The contract tracks proof value by user.
  • It also tracks total proof value and proof event count.
  • archiveProofDeposit() can close a proof record later.
  • Read functions expose proof records by wallet.

OPN Chain proof

The contract was deployed on OPN Chain during the Season 1 submission window. A live createProofDeposit() transaction was executed with native OPN, so this submission includes both deployment proof and real interaction proof.

Roadmap

02/03

What ships next.

The builder's own next-quarter plan. Use it to gauge follow-through and ambition.

Current submission

The submitted version of OPN Proof Deposit focuses on a simple verification deposit record:

  • Deploy the proof deposit contract on OPN Chain.
  • Test the createProofDeposit() function with native OPN.
  • Store proof amount, proof time, and archive status on-chain.
  • Track proof value by user.
  • Track total proof value and proof event count.
  • Submit the build for Season 1 review.

Next step

The next step is to build a small proof dashboard:

  • Add wallet connection.
  • Let users create proof deposits from a web page.
  • Show proof records for the connected wallet.
  • Display active and archived proofs separately.
  • Add explorer links for proof transactions.

Product expansion

After the basic interface, the proof layer can support more verification use cases:

  • Add named proof records.
  • Add proof categories for testing, grants, builder activity, campaigns, or community support.
  • Add optional notes for each proof.
  • Add ERC-20 proof deposit support.
  • Add public proof pages for transparent verification.

Long-term direction

The long-term goal is to make OPN Proof Deposit a lightweight verification layer for OPN Chain, useful for proving testnet activity, builder participation, campaign support, and transparent on-chain 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.

  • 01OPNProofDepositPrimary

    0xEaCb2910663ca75B06D05d7ab91ACe166b10845A

    tx 0xd4c2d86fbe3679b5c4ddf30430be27c40e7c74651e5fe093b00de26116732eff

    deployed Jun 8, 2026 · block 18154671