Question 1

What is Certifium?

Accepted Answer

Certifium is the premier marketplace for tokenized, certified collectibles. We combine the security of blockchain technology with the trust of professional grading to create a seamless experience for collectors.

**Key Features:**
- **Vault Custody**: All physical assets are stored in insured, climate-controlled vaults
- **NFT Tokenization**: Each item is represented by an NFT on the Base blockchain
- **Certified Only**: We only accept items graded by NGC, PCGS, PSA, CGC, and other recognized authorities
- **USDC Payments**: Fast, stable cryptocurrency payments with no volatility risk

**How It Works:**
1. Browse our marketplace of certified collectibles
2. Connect your wallet (Coinbase Wallet recommended)
3. Purchase with USDC - instant settlement
4. Your NFT appears in your wallet immediately
5. Request physical delivery anytime, or keep it vaulted

Question 2

How do I connect my wallet?

Accepted Answer

Connecting your wallet is easy and takes less than a minute.

**Recommended: Coinbase Wallet**
1. Download Coinbase Wallet from the App Store or Google Play
2. Create a new wallet or import an existing one
3. On Certifium, click "Connect Wallet" in the top right
4. Select "Coinbase Wallet"
5. Approve the connection in your wallet app

**Alternative Wallets:**
- MetaMask (add Base network manually)
- Rainbow Wallet
- WalletConnect compatible wallets

**Important Notes:**
- Make sure you're on the Base network
- Keep your recovery phrase safe and never share it
- Certifium will never ask for your private keys

Question 3

Making your first purchase

Accepted Answer

Ready to add a certified collectible to your collection? Here's how:

**Before You Start:**
- Connect your wallet
- Have USDC in your wallet on Base network
- Verify you're on certifium.com (check the URL)

**Purchase Steps:**
1. Browse the marketplace and find an item you love
2. Click on the item to view full details
3. Verify the certification (NGC, PCGS, etc.)
4. Click "Buy Now" or place a bid (for auctions)
5. Review the order summary
6. Approve USDC spending (first time only)
7. Confirm the transaction
8. Done! Your NFT is now in your wallet

**After Purchase:**
- View your NFT in your wallet or on OpenSea
- Track your collection in "My Vault"
- Request physical delivery anytime

Question 4

What is USDC and how do I get it?

Accepted Answer

USDC (USD Coin) is a stablecoin pegged 1:1 to the US Dollar. It combines the stability of traditional currency with the speed of blockchain.

**Why USDC?**
- **Stable Value**: 1 USDC = $1 USD always
- **Fast Settlement**: Transactions confirm in seconds
- **Low Fees**: Base network has minimal gas fees
- **No Bank Delays**: Available 24/7, no wire transfers

**How to Get USDC:**
1. **Coinbase**: Buy USDC directly, transfer to Coinbase Wallet on Base
2. **Bridge from Ethereum**: Use the Base Bridge to move USDC from Ethereum
3. **DEX Swap**: Swap other tokens for USDC on Base

**Recommended Method (Coinbase):**
1. Open Coinbase app
2. Buy USDC with your bank account
3. Send to your Coinbase Wallet
4. Make sure to select "Base" network when sending

Question 5

What are gas fees on Base?

Accepted Answer

Gas fees are small costs paid to process transactions on the blockchain.

**Good News: Base Has Very Low Fees**
- Typical transaction: $0.01 - $0.05
- Much cheaper than Ethereum mainnet
- Fees paid in ETH (keep a small amount in your wallet)

**Why Gas Fees Exist:**
- Pay network validators for processing
- Prevent spam transactions
- Secure the network

**Tips to Save on Gas:**
- Certifium uses Coinbase Paymaster for many transactions (free gas!)
- Batch operations when possible
- Gas prices are generally stable on Base

**Gasless Transactions:**
Many Certifium transactions are gasless thanks to our Coinbase Paymaster integration. Look for the "Gasless" badge on supported actions.

Question 6

How does escrow protection work?

Accepted Answer

Every purchase on Certifium is protected by our escrow system.

**How Escrow Works:**
1. You pay with USDC
2. Funds are held in escrow (not released to seller)
3. Seller ships the item (for delivery orders)
4. You confirm receipt
5. Funds are released to seller

**Protection Period:**
- 14-day auto-release after shipping confirmation
- Dispute window: 14 days from delivery
- Full refund if item not as described

**For Vaulted Items:**
- Physical items remain in secure vault custody
- NFT transfer is immediate
- You can verify vault status anytime

**Dispute Resolution:**
If something goes wrong:
1. Open a dispute within 14 days
2. Provide evidence (photos, messages)
3. Our team reviews and mediates
4. Fair resolution for both parties

Question 7

When does my NFT appear in my wallet?

Accepted Answer

Your tokenized asset appears in your Base wallet immediately after the minting transaction is confirmed on-chain. This happens at the moment of purchase - when you complete payment, the NFT is minted to your connected wallet address.

**Where to View Your NFT:**
- **Coinbase Wallet**: Automatically appears in NFT tab
- **MetaMask**: Add Base network, view in NFT section
- **Rainbow Wallet**: Shows under collectibles
- **OpenSea.io**: Select Base network, view your profile
- **BaseScan.org**: Search your wallet address

**Transaction Confirmation:**
- Typical confirmation time: 2-5 seconds on Base
- You'll see a success message on Certifium
- NFT appears in your wallet within moments

**Troubleshooting:**
If you don't see your NFT:
1. Make sure you're viewing the Base network
2. Refresh your wallet
3. On OpenSea, click "Refresh Metadata"
4. Check BaseScan to verify the transaction

Question 8

Can I sell my NFT on OpenSea?

Accepted Answer

Yes! Your Certifium NFTs are standard ERC-721 tokens and can be sold on any compatible marketplace.

**Selling on OpenSea:**
1. Go to opensea.io and connect your wallet
2. Select Base network
3. Find your Certifium NFT in your profile
4. Click "Sell" and set your price
5. Sign the listing transaction
6. Your item is now listed!

**Important Considerations:**
- OpenSea charges a 2.5% fee on sales
- Certifium may have creator royalties (supports the platform)
- Buyer receives the NFT, not the physical item
- Physical item remains in Certifium vault until claimed

**Certifium Marketplace:**
For the best experience, we recommend selling on Certifium:
- Direct access to serious collectors
- Verified grading information displayed
- Seamless vault custody transfer
- Lower fees

Question 9

What does the NFT represent?

Accepted Answer

Your Certifium NFT represents ownership of a specific, certified physical collectible stored in our vault.

**NFT Contains:**
- Certification number (NGC, PCGS, PSA, CGC)
- Grade information
- High-resolution images
- Provenance history
- Vault custody status

**Ownership Rights:**
- Full ownership of the physical asset
- Right to request delivery anytime
- Right to sell or transfer
- Voting rights in future governance (planned)

**Physical vs. Digital:**
- NFT = proof of ownership on blockchain
- Physical item = stored in insured vault
- Both are connected via certification number

**Custody Options:**
1. **Keep Vaulted**: Secure storage, instant trading
2. **Request Delivery**: Ship to your address
3. **Transfer Custody**: Send to another vault

**Verification:**
- Verify ownership on BaseScan
- Check vault status in "My Vault"
- Cross-reference with grading company database

Question 10

How are items stored and insured?

Accepted Answer

All Certifium assets are stored in professional, insured vault facilities.

**Vault Features:**
- Climate-controlled environment
- 24/7 security monitoring
- Biometric access controls
- Fire and flood protection
- Regular audits

**Insurance Coverage:**
- Full replacement value coverage
- Lloyd's of London underwritten
- Covers theft, damage, natural disasters
- Automatic coverage for all vaulted items

**Vault Locations:**
- Primary: Delaware Depository (USA)
- Expansion: UK and EU vaults planned

**Verification:**
- Proof of reserve audits quarterly
- On-chain attestations
- Third-party verification available

**Your Responsibilities:**
- Keep your wallet secure
- Update delivery address as needed
- Notify us of any concerns immediately

Question 11

How do I request physical delivery?

Accepted Answer

You can request delivery of your vaulted items anytime.

**Delivery Process:**
1. Go to "My Vault" in your account
2. Select the item you want delivered
3. Click "Request Delivery"
4. Confirm or update your shipping address
5. Pay shipping and handling fee
6. Track your shipment

**Shipping Options:**
- Standard: 5-7 business days (insured)
- Express: 2-3 business days (insured)
- International: 7-14 business days (varies)

**Fees:**
- Based on item value and destination
- Includes full insurance during transit
- Signature required on delivery

**After Delivery:**
- NFT is burned (removed from blockchain)
- You now hold the physical item directly
- Re-vault option available if you change your mind

**Important:**
- Verify your address carefully
- Someone must sign for delivery
- Inspect item immediately upon receipt

Question 12

What is a Mystery Coin Strike?

Accepted Answer

Mystery Coin Strikes are our exciting way to discover certified coins.

**How Strikes Work:**
1. Choose a Strike tier (price point)
2. Pay the strike price in USDC
3. Blockchain randomness selects your coin
4. Reveal animation shows your prize
5. NFT is minted to your wallet instantly

**Fairness Guarantee:**
- True randomness via EMSE 8-layer system
- Odds are transparent and on-chain
- Every coin in the pool is certified and valued

**Value Distribution:**
- Minimum value always exceeds strike price
- Chance to win coins worth 2-10x+ strike price
- Every strike is a guaranteed certified coin

**Tiers Available:**
- Starter: Entry-level certified coins
- Premium: Higher-grade coins
- Elite: MS65+ and rare dates
- Legendary: Ultra-rare specimens

Question 13

How are Strike odds calculated?

Accepted Answer

Strike odds are completely transparent and verifiable on-chain.

**Odds Calculation:**
- Each coin's odds = (Coin Value) / (Total Pool Value)
- Higher value coins have lower odds
- All odds sum to 100%

**Example:**
Pool contains:
- 10 coins at $50 each (total $500)
- 5 coins at $100 each (total $500)
- 1 coin at $500

Total pool: $1,500

Odds:
- $50 coins: 3.33% each (33.3% total)
- $100 coins: 6.67% each (33.3% total)
- $500 coin: 33.3%

**On-Chain Verification:**
- Pool composition viewable on BaseScan
- Random selection uses EMSE protocol
- Results are immutable and auditable

**No House Edge:**
Every strike returns a certified coin worth at least the strike price. We make money on volume, not by shortchanging collectors.

Question 14

How do I verify an item's authenticity?

Accepted Answer

Every item on Certifium is certified by a recognized grading authority. Here's how to verify:

**Verification Steps:**
1. Find the certification number on the item listing
2. Visit the grading company's website
3. Enter the cert number in their lookup tool
4. Compare details (grade, description, images)

**Grading Company Websites:**
- **NGC**: ngccoin.com/certlookup
- **PCGS**: pcgs.com/cert
- **PSA**: psacard.com/cert
- **CGC**: cgccomics.com/certlookup

**What to Verify:**
- Certification number matches
- Grade matches listing
- Description matches
- Images match (if available)

**Red Flags:**
- Cert number doesn't exist
- Grade doesn't match
- Description inconsistent
- Seller avoids verification questions

**Certifium Verification:**
We verify all items before listing. Look for the "Verified" badge on listings.

Question 15

Understanding coin grades (MS, PF, etc.)

Accepted Answer

Coin grading uses a 1-70 scale developed by Dr. William Sheldon.

**Grade Prefixes:**
- **MS** (Mint State): Uncirculated coins
- **PF/PR** (Proof): Special collector strikes
- **AU** (About Uncirculated): 50-58
- **XF/EF** (Extremely Fine): 40-45
- **VF** (Very Fine): 20-35
- **F** (Fine): 12-15
- **VG** (Very Good): 8-10
- **G** (Good): 4-6

**Common Grades:**
- **MS70/PF70**: Perfect, no flaws under 5x magnification
- **MS69/PF69**: Near perfect, tiny imperfections
- **MS67-68**: Superb gem quality
- **MS65-66**: Gem quality
- **MS63-64**: Choice uncirculated
- **MS60-62**: Uncirculated with visible marks

**Designations:**
- **CAM**: Cameo (light frost on devices)
- **DCAM/UCAM**: Deep/Ultra Cameo (heavy frost)
- **+**: Plus grades (above average for grade)
- **★**: Star designation (exceptional eye appeal)

**Price Impact:**
Each grade point can significantly affect value. An MS67 might be worth 2-3x an MS66.

Question 16

How do I keep my wallet secure?

Accepted Answer

Your wallet security is crucial for protecting your collectibles.

**Essential Security Practices:**

**1. Recovery Phrase:**
- Write it down on paper (never digital)
- Store in multiple secure locations
- Never share with anyone
- Certifium will NEVER ask for it

**2. Device Security:**
- Use a strong device passcode
- Enable biometric authentication
- Keep your device updated
- Avoid public WiFi for transactions

**3. Transaction Safety:**
- Always verify the website URL
- Double-check recipient addresses
- Review transaction details carefully
- Be wary of "too good to be true" offers

**4. Phishing Prevention:**
- Bookmark certifium.com
- Don't click links in unsolicited messages
- Verify social media accounts are official
- Report suspicious activity immediately

**Hardware Wallets (Advanced):**
For high-value collections, consider:
- Ledger Nano
- Trezor
Connect via WalletConnect for extra security

Question 17

What if I have a dispute with a seller?

Accepted Answer

We have a fair dispute resolution process to protect both buyers and sellers.

**When to Open a Dispute:**
- Item not as described
- Item not received
- Damage during shipping
- Authenticity concerns

**Dispute Process:**
1. **Contact Seller First**
   - Use in-app messaging
   - Allow 48 hours for response
   - Document all communication

2. **Open Formal Dispute**
   - Go to order details
   - Click "Open Dispute"
   - Select reason and provide evidence
   - Upload photos if applicable

3. **Review Period**
   - Both parties submit evidence
   - Our team reviews within 3-5 days
   - Additional information may be requested

4. **Resolution**
   - Full refund if buyer is right
   - Payment released if seller is right
   - Partial refund in some cases

**Evidence to Provide:**
- Photos/videos of item received
- Screenshots of listing
- Communication records
- Grading company verification

**Prevention Tips:**
- Read listings carefully
- Ask questions before buying
- Verify certification

Learn Center

Featured Guide

What is Certifium?

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What is Certifium?

How do I connect my wallet?

Making your first purchase

What is USDC and how do I get it?

How does escrow protection work?

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Getting Started

Wallet & Payments

NFTs & Ownership

Vault & Storage

Strikes & Mystery

Grading & Authentication

Account & Security

Getting Started

What is Certifium?

How do I connect my wallet?

Making your first purchase

Wallet & Payments

What is USDC and how do I get it?

What are gas fees on Base?

How does escrow protection work?

NFTs & Ownership

When does my NFT appear in my wallet?

Can I sell my NFT on OpenSea?

What does the NFT represent?

Vault & Storage

How are items stored and insured?

How do I request physical delivery?

Strikes & Mystery

What is a Mystery Coin Strike?

How are Strike odds calculated?

Grading & Authentication

How do I verify an item's authenticity?

Understanding coin grades (MS, PF, etc.)

Account & Security

How do I keep my wallet secure?

What if I have a dispute with a seller?

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