How to Create an OnChain Passport for Web3 Verification

What is an OnChain Passport

An OnChain Passport is a verifiable attestation of your reputation data stored directly on the blockchain. It is not a new token standard or a standalone asset; rather, it is a cryptographic proof issued by Human Passport (formerly Gitcoin Passport) that confirms your identity and activity scores without exposing sensitive personal details.

This system relies on the Ethereum Attestation Service (EAS) to create a tamper-proof record of your credentials. By moving these attestations on-chain, you gain a portable reputation that can be verified by dApps, protocols, and community DAOs. This distinguishes the OnChain Passport from traditional centralized IDs, which are often siloed, vulnerable to single points of failure, and require repetitive KYC processes for every new platform.

Instead of handing over your entire digital history to a central authority, you hold the keys to your own reputation. The OnChain Passport allows you to selectively share verified proof of personhood or specific activity metrics. This approach protects you from bad actors and sybil attacks while maintaining privacy, as the underlying data remains off-chain while the proof of its validity is on-chain.

Prepare your wallet and reputation score

Start Create an OnChain Passport for Web3 Verification with the constraint that matters most in real life: space, timing, budget, skill level, maintenance, or availability. That first constraint should shape the rest of the plan instead of appearing as an afterthought. Keep the first pass simple enough to verify. Compare the main options against the same criteria, remove choices that only work in ideal conditions, and save optional upgrades for later.

1

Define the constraint

Name the space, budget, timing, or skill limit that shapes the Create an OnChain Passport for Web3 Verification decision.

2

Compare realistic options

Use the same criteria for each option so the tradeoff is visible.

3

Choose the practical path

Pick the option that still works after cost, maintenance, and fallback needs are included.

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Mint the attestation via EAS

Create an OnChain Passport for Web3 Verification works best as a clear sequence: define the constraint, compare the realistic options, test the tradeoff, and choose the path with the fewest hidden costs. That order keeps the advice usable instead of decorative. After each step, pause long enough to check whether the recommendation still fits the reader's actual situation. If it depends on perfect timing, unusual access, or a best-case budget, include a simpler fallback.

Verify the on-chain record

Create an OnChain Passport for Web3 Verification works best as a clear sequence: define the constraint, compare the realistic options, test the tradeoff, and choose the path with the fewest hidden costs. That order keeps the advice usable instead of decorative. After each step, pause long enough to check whether the recommendation still fits the reader's actual situation. If it depends on perfect timing, unusual access, or a best-case budget, include a simpler fallback.

The simplest way to use this section is to write down the real constraint first, compare each option against it, and choose the path that still works outside ideal conditions.

Common mistakes when minting

The easiest mistake with Create an OnChain Passport for Web3 Verification is comparing options on the most visible detail while ignoring the day-to-day constraint. A choice can look strong on paper and still fail because it is too hard to maintain, too expensive to repeat, or awkward in the actual setting. Use the same checklist for every option: fit, cost, durability, timing, upkeep, and fallback plan. That keeps the comparison practical instead of drifting into preference alone.

The simplest way to use this section is to write down the real constraint first, compare each option against it, and choose the path that still works outside ideal conditions.

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