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Storage + Chain Integration

Upload off-chain data to 0G Storage and record root hashes on 0G Chain.

Updated Jun 18, 2026
Search Tags:#registry#smart contracts#nft metadata#0g storage#0g chain#merkle verification
One-click install
npx skills add https://github.com/srijan399/imsy --skill storage-chain-integration-srijan399
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: Storage + Chain Integration
Source: https://github.com/srijan399/imsy/tree/main/.0g-skills/skills/cross-layer/storage-plus-chain
Command: npx skills add https://github.com/srijan399/imsy --skill storage-chain-integration-srijan399

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill requires @0glabs/0g-ts-sdk, ethers.

What problem does it solve?

This Skill helps you connect large off-chain files in 0G Storage with compact on-chain references, so you can register, verify, and retrieve verifiable data without putting full content on-chain.

Core Features & Use Cases

  • Store Then Register: Upload data to 0G Storage first, then write the resulting root hash into a smart contract.
  • Verifiable Retrieval: Read the on-chain hash back and download the matching file from storage with verification enabled.
  • NFT and Registry Patterns: Support NFT metadata, content registries, document proofs, and other workflows that need a trustworthy chain-to-storage link.

Quick Start

Use this skill to upload your file to 0G Storage, register the returned root hash in your contract, and then verify that the stored data can be recovered from the chain reference.

Frequently Asked Questions about Storage + Chain Integration

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I link 0G Storage files to smart contracts on 0G Chain?▼

Upload off-chain data to 0G Storage first, then record the returned root hash into your smart contract on 0G Chain to establish verifiable references between the stored file and the contract.

What is Merkle verification for NFT metadata in 0G Storage?▼

Merkle verification for NFT metadata confirms that the file retrieved from 0G Storage matches the root hash recorded on 0G Chain. It ensures the stored NFT metadata can be verifiably recovered from the on-chain reference.

Do I need ethers v6 to write 0G Storage root hashes on-chain?▼

Yes, writing 0G Storage root hashes on-chain requires ethers v6 for contract interaction. The workflow also depends on the 0G TS SDK for uploads and requires Cancun-compatible Solidity compilation for contracts.

Can I use 0G Storage for document proofs without putting full content on-chain?▼

Yes, you can use 0G Storage for document proofs without putting full content on-chain. Upload the document to 0G Storage, then register only the resulting root hash in your smart contract for later verification.

Why does my 0G Storage to 0G Chain integration require upload-first sequencing?▼

Upload-first sequencing is required because you must obtain the root hash from 0G Storage before you can write it to 0G Chain. Recording the hash on-chain before uploading the file would break the verifiable retrieval link.

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