Pocket Card Ledger - Frequently Asked Questions

Pocket Card Ledger is a web-based collection tracking and verification platform built for trading card collectors.

It allows you to:

• Track your collection
• Monitor value
• Organize by set or binder
• Lock records with cryptographic verification
• Transfer ownership securely
• Create tamper-evident collection snapshots

It is designed to add structure, integrity, and long-term trust to collectible ownership.

Hash Locking is a cryptographic fingerprint system.

When you hash lock a card, the system generates a unique digital fingerprint based on that card's stored data. That fingerprint is time-stamped and recorded. If the data changes, the fingerprint changes.

This makes the record tamper-evident.

It does not change the physical card. It protects the integrity of the digital record.

Think of it as a digital seal that proves:

• What the card data was
• When it was recorded
• Who owned it at that time
• That it has not been altered since locking

When you lock a card, the system generates a hash using:

• Card name
• Set
• Card number
• Condition (raw or graded)
• Serial number (if graded)
• Owner ID
• Timestamp
• Internal record ID

If any of that information changes, the hash changes.

This ensures that the locked record cannot be modified without detection.

No.

Hashes are mathematically generated using cryptographic functions. They cannot be reverse engineered, duplicated with altered data, or manually recreated to match different information.

If a record is changed, the system will detect it immediately because the fingerprint will no longer match.

No.

Public verification pages display:

• Card details
• Hash ID
• Lock timestamp
• Verification status

They do not display:

• Email address
• Physical address
• Account login information
• Private profile data

You control what information is publicly visible.

First, add your card to your collection by entering:

• Card name
• Set
• Condition
• Optional purchase price
• Serial number (if graded)

Save the card.

Then open the card record and select "Hash Lock."

The system will:

• Generate a cryptographic fingerprint
• Timestamp the record
• Mark the card as locked

Once locked, the record becomes immutable unless unlocked.

No.

To edit a locked card:

• You must unlock it
• Unlocking invalidates the existing hash
• After editing, you must create a new hash

This ensures that locked records remain tamper-evident.

Multi-Card Hashing allows you to lock multiple cards together into a single verified set.

This is useful for:

• Selling bundles
• Auction lots
• Tournament decks
• Slab groups
• Trade packages

When you create a set hash, the system generates a master hash that links all included cards together.

If any card in the group changes, the set hash changes.

This provides integrity protection for bundled assets.

Go to your collection and select multiple cards.

Choose "Create Set Hash."

The system will:

• Generate a master hash
• Link each individual card hash
• Create a unified verification record

You can then share a single verification link for the entire group.

Binder Hashing allows you to create a snapshot of an entire:

• Binder
• Page
• Collection segment
• Store inventory
• Vault inventory

It captures a frozen version of all included cards at a specific moment in time.

This is ideal for:

• Insurance documentation
• Estate planning
• Store inventory verification
• Card show inventory proof
• High-value collection snapshots

If cards are later added or removed, you must create a new binder hash to reflect the updated state.

Binder hashing is essentially a time-stamped inventory snapshot.

Ownership transfers create a secure digital handoff of a locked card.

To transfer a card:

• Open the locked card
• Select "Transfer Ownership"
• Enter the buyer's username or email
• Confirm

The buyer receives a notification. Once accepted:

• Ownership updates
• A new timestamp is recorded
• Original hash history is preserved

The system maintains a permanent chain of custody.

The original hash remains recorded.

Ownership history is layered onto the record.

This creates a documented chain of custody that shows:

• Original owner
• Transfer events
• Current owner

Nothing is erased.

Yes.

You may transfer:

• Individual cards
• Entire hashed sets

If transferring an entire set, the master hash remains intact and ownership updates.

If splitting a set, the set hash becomes invalid and a new hash must be created.

Hash Locking and professional grading serve different purposes.

Grading companies such as Professional Sports Authenticator, Beckett Grading Services, and Certified Guaranty Company physically inspect cards.

They evaluate:

• Centering
• Corners
• Surface
• Edges
• Authenticity

They assign a numeric condition grade and encapsulate the card in a protective slab.

Grading answers the question:
"What condition is this physical card in?"

Hash Locking does not evaluate condition.

It verifies:

• The integrity of the digital record
• Ownership
• Timestamp
• Chain of custody

Hash Locking answers the question:
"Has this record been altered, and who owned it at what time?"

Many collectors use both systems together.

Grading protects the physical card.
Hash Locking protects the ownership record.

No.

Pocket Card Ledger is not NFT-based.

It does not:

• Mint tokens
• Use cryptocurrency
• Require a crypto wallet
• Operate on a public blockchain
• Create tradable digital coins
• Involve gas fees

NFTs are blockchain-based digital tokens often associated with cryptocurrency markets.

Pocket Card Ledger does not create tokens.

It uses cryptographic hashing strictly for:

• Data integrity
• Tamper detection
• Ownership tracking
• Timestamp verification

Hashing is a standard cybersecurity tool used in:

• Banking systems
• Medical record systems
• Password storage
• Software authentication
• Legal document verification

NFTs are one use case of hashing.

Pocket Card Ledger uses hashing for record verification, not speculation.

There is no coin.
There is no marketplace.
There is no tokenization.

It is a verification platform.

Yes.

Shops can:

• Hash inventory batches
• Create verified auction lots
• Lock incoming purchase groups
• Create public verification links
• Document show inventory

This adds transparency and buyer confidence.

Hashing does not change the condition of a card.

It increases:

• Transparency
• Documentation
• Ownership clarity
• Buyer confidence

Over time, documented chain-of-custody systems tend to improve trust in transactions.

Hash records are securely stored.

Temporary service interruptions do not erase or invalidate existing hashes.

Records remain intact and verifiable once service resumes.

Credits are usage units for advanced verification actions in Pocket Card Ledger.

Credits are used for actions such as:

• Hash locking individual cards
• Creating multi-card set hashes
• Creating binder or inventory snapshot hashes
• Processing ownership transfers
• Generating batch verification records

Basic collection tracking does not require credits.

Hashing operations require secure compute and durable verification infrastructure.

Credits support:

• Secure record generation
• Timestamp processing
• Verification indexing
• Storage of immutable records

This keeps verification reliable and sustainable at scale.

Purchased credits do not expire.

Subscription plans can include recurring credit allocations based on billing cycles.

Your dashboard shows available credits and usage history.

Credits are consumed for verification-level actions (lock, snapshot, transfer, batch verification).

These actions do not consume credits:

• Adding cards
• Editing unlocked cards
• Viewing your collection

A subscription provides ongoing access to enhanced features.

Depending on plan tier, this may include:

• Recurring credit allocations
• Bulk operations
• Advanced analytics
• Shop tools
• Expanded limits

Subscriptions are useful for active collectors, high-volume sellers, and shops.

No. Basic collection tracking is free.

A subscription is recommended if you hash frequently, sell regularly, or need consistent chain-of-custody workflows.

Existing locked records remain valid and previously generated hashes remain intact.

Ownership history is preserved.

You stop receiving new subscription allocations and subscription-only capabilities.

Your core data is not deleted by cancellation alone.

Yes. Shop accounts can purchase credits and move between supported plan tiers.

This is useful during high-volume periods such as card shows or large inventory turns.

Unbounded verification usage creates abuse risk and unsustainable infrastructure load.

Credit accounting helps maintain fair usage, system reliability, and long-term record storage.

Use the dashboard/billing area to track:

• Total available credits
• Credits consumed
• Recent credit-affecting actions and purchase events

Credit usage is surfaced directly in account UI for transparency.

Basic collection tracking is free.

Advanced features may include:

• Bulk operations
• Advanced analytics
• Shop tools
• Expanded storage
• Batch verification tools

Pocket Card Ledger was built by a father-and-son team focused on improving infrastructure for collectors.

The platform is actively developed and continuously improved based on community feedback.