Implement On-Chain Group Ownership

[SudiptaPaul-31]

Issue: Implement On-Chain Group Ownership

Description

Group ownership should be tied directly to a wallet address on the Stellar blockchain.
Before any updates to group data are allowed, ownership must be validated against this wallet.

Acceptance Criteria

• Assign group ownership to a specific wallet address at creation.
• On update requests, verify that the transaction is signed by the owner’s wallet.
• Deny updates if ownership validation fails.

Benefits

• Ensures only the rightful owner can modify group data.
• Provides transparent, on-chain proof of ownership.
• Strengthens security and trust in group management.

[drips-wave]

This issue has been added to the Stellar Wave Program and is worth 200 Points.

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[teethaking]

@teethaking has applied to work on this issue as part of the Stellar Wave Program's 2nd wave.

Hey, I'll like to work on this issue please.

ℹ️ Repo Maintainers: To accept this application, review their application or assign @teethaking to this issue.

[Arome8240]

@Arome8240 has applied to work on this issue as part of the Stellar Wave Program's 2nd wave.

Hello, I'm a smart contract and full stack developer, open for contributions. contributed to over 20 project on OnlyDust and Drips , with expertise in Solidity, Cairo, JavaScript, TypeScript, and RUST. I am passionate about building secure and scalable blockchain solutions, and I would love the opportunity to contribute my skills toward solving this issue

ℹ️ Repo Maintainers: To accept this application, review their application or assign @Arome8240 to this issue.

[bigvictoh]

@bigvictoh has applied to work on this issue as part of the Stellar Wave Program's 2nd wave.

I’m interested in tackling this issue. Moving group ownership on-chain is a great move for transparency, and I have experience working with the Stellar SDK and managing transaction-based authentication.

My Implementation Plan:
On-Chain Mapping: I will ensure that upon group creation, the owner_address is stored as a required field, mapped directly to a valid Stellar public key (G-address).

Signature Verification: For all update requests, I will implement a middleware layer that:

Fetches the transaction XDR or signature from the request.

Uses the Stellar SDK to verify that the signature matches the stored owner_address.

Validates that the transaction is current (checking sequence numbers or timebounds) to prevent replay attacks.

Security Fail-safes: I will implement strict "Deny-by-Default" logic. If the signature is missing, invalid, or belongs to a different account, the update will be rejected with a 403 Forbidden error before any database changes occur.

Transparency: I'll ensure the verification process is logged correctly so that users can view the on-chain proof of the modification if needed.

Technical Expertise:
Proficient with Stellar Horizon API and the JavaScript/Python Stellar SDK.

Deep understanding of Ed25519 signatures and transaction envelopes (XDR).

Experience building secure API endpoints that require cryptographic proof for state changes.

I'm ready to ensure that group management is both secure and decentralized.

ℹ️ Repo Maintainers: To accept this application, review their application or assign @bigvictoh to this issue.

[robertocarlous]

@robertocarlous has applied to work on this issue as part of the Stellar Wave Program's 2nd wave.

Hi Maintainer, I’m a blockchain developer with 4 years of experience building secure, wallet-authenticated systems on Stellar and other chains. I’d like to work on this issue.

I’ll implement on-chain group ownership by binding each group to a specific wallet address at creation and enforcing signature-based verification before any updates are allowed. All modification requests will be validated against the owner’s wallet, and unauthorized attempts will be rejected with clear feedback.

eta:10hrs

ℹ️ Repo Maintainers: To accept this application, review their application or assign @robertocarlous to this issue.

[drips-wave]

Congratulations, @bigvictoh! 🎉 Your application was accepted by the repo's maintainers, and the issue is due on February 26, 2026.

🧑‍💻 @bigvictoh: Please resolve the issue such that the repo's maintainers have enough time to review your contribution before the due date. You'll earn Points for completing the issue on-time, which will make you eligible for a share of the Stellar Wave Program's reward pool.

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