A Pre-Mint Collection Verification Checklist
Mainnet mints are expensive to unwind in reputation if metadata is wrong. Run these twelve checks on devnet first — they take an afternoon and prevent most public embarrassment.
Metadata and media
- Fetch ten random JSON files from your metadata base URI and validate structure.
- Confirm every image URL returns HTTP 200 without authentication cookies.
- Verify trait counts match your rarity documentation.
- Check for duplicate token IDs or gaps in numbering sequence.
On-chain configuration
- Confirm collection authority is set if you want verified badges.
- Verify creator shares sum to 100 with correct wallet addresses.
- Test that update authority matches your intended mutability plan.
- Mint one token to a test wallet and view it in two different wallets.
Operational readiness
- Document the candy machine or mint program address for your community.
- Prepare a plain-language FAQ for royalty behavior on your chosen marketplaces.
- Schedule support coverage for the first 24 hours after mint.
- Archive a snapshot of all metadata files with a dated checksum.
After devnet passes
Repeat checks 1–4 and 8 on your first three mainnet mints before opening public mint. Small batch verification catches upload script bugs that random sampling on devnet missed.
For hands-on review, book an NFT metadata review session with your devnet mint addresses ready.