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BCRank Coin (BCRC) Whitepaper

The Play-to-Earn Token of BC Ranking Game

Version 1.0 — July 2026

Website: https://bc-rankinggame.com


Table of Contents

  1. Executive Summary
  2. Introduction
  3. BC Ranking Game Overview
  4. Credits Economy
  5. BCRC Token Overview
  6. Tokenomics
  7. Treasury & Distribution
  8. Credits ↔ BCRC Exchange
  9. Token Sale
  10. Smart Contracts
  11. Economic Flywheel
  12. Security & Transparency
  13. Roadmap & Vision
  14. Disclaimer

1. Executive Summary

BCRank Coin (BCRC) is the official ERC-20 utility and reward token of BC Ranking Game, a competitive strategy ranking game hosted at bc-rankinggame.com.

Players climb the global leaderboard by winning battles, earning Credits through performance-based distribution. Credits power the in-game economy and can be exchanged 1:1 for BCRC tokens by active players.

BCRC is deployed on Polygon Mainnet (Chain ID: 137) with a fixed initial supply of 1 billion tokens, a transparent allocation model, and a controlled monthly emission of 31,000 BCRC to the on-chain Treasury. Token distribution to players is fully automated through smart contracts — even the project owner cannot freely withdraw Treasury funds.

Key properties:

PropertyValue
Token NameBCRank Coin
SymbolBCRC
NetworkPolygon (MATIC)
StandardERC-20 (18 decimals)
Initial Supply1,000,000,000 BCRC
Monthly Emission31,000 BCRC every 30 days
Credits Exchange1 BCRC = 1 Credit (active players only)

2. Introduction

Traditional gaming economies keep all value inside closed platforms. BC Ranking Game takes a different approach: skill, strategy, and consistent activity are rewarded with Credits that have a direct on-chain counterpart in BCRC.

BCRC connects three layers:

  1. Gameplay — ranking, battles, HQ upgrades, and resource management
  2. In-game economy — Credits and Gold with deflationary mechanics
  3. Blockchain layer — verifiable token ownership, Treasury contracts, and public supply data on PolygonScan

This whitepaper explains how the game works, how Credits are earned, how BCRC is created and distributed, and how the smart contracts enforce fairness and transparency.


3. BC Ranking Game Overview

BC Ranking Game is a competitive multiplayer strategy game where players fight for position on a global ranking leaderboard.

3.1 Objective

Climb the ranking by earning Ranking Points through successful attacks and strategic play. Higher ranks receive a larger share of the daily Credits pool.

3.2 Ranking System

Your position is determined by Ranking Points. When two players have the same number of points, the player who registered earlier receives the higher rank.

3.3 Active Players

Only active players can earn Credits and exchange them for BCRC tokens.

StatusConditionCreditsBCRC Exchange
Active≤ 200 Battle Turns✅ Yes✅ Yes
Inactive≥ 201 Battle Turns❌ No❌ No

Battle Turns regenerate automatically (+1 every 30 minutes, maximum 200). Players can also purchase extra turns in the Headquarters (HQ) using Gold from their vault.

3.4 Core Game Actions

Every action costs one Battle Turn:

Win probability formula:
Win Chance (%) = (Your Attack / (Your Attack + Target Defense)) × 100
Ranking points on attack:
ScenarioFormulaExample
Attack upward (lower rank vs higher rank)10 + rank differenceRank 10 vs Rank 5 → 15 points
Attack downward (higher rank vs lower rank)11 − rank difference (min. 1)Rank 5 vs Rank 10 → 6 points
Same rank10 points

After a successful attack, a temporary cooldown prevents repeated farming of the same target.

3.5 Gold Economy

Gold fuels military strength. There are three gold types:

TypeDescription
Vault Gold (GoldInSave)Safe gold; cannot be stolen; used for HQ upgrades
Owned Gold (Gold)Gold you hold directly
Stealable Gold (GoldToSteal)Minimum 25% of Owned Gold; vulnerable to attacks

Credits can be converted to Gold at a 1:1 ratio with the following split:

DestinationShare
Vault Gold50%
Owned Gold37.5%
Stealable Gold12.5%

3.6 Headquarters (HQ) & Deflation

In the HQ, players invest Vault Gold to upgrade:

Gold spent on HQ upgrades is permanently removed from the game (burned). This creates scarcity and strengthens the in-game economy over time.

4. Credits Economy

Credits are the central in-game currency that links gameplay performance to BCRC token access.

4.1 Daily Generation

The system generates approximately 999.36 Credits per day, distributed across all active players.

ParameterValue
Distribution intervalEvery 30 minutes
Credits per interval20.82 Credits (shared among active players)
Daily total~999.36 Credits

4.2 Distribution Formula

Credits are distributed using a power curve, rewarding higher ranks disproportionately while keeping lower ranks fairly compensated:

Credits for player at rank R = (Score(R) / Total Score) × 20.82

Where:

Score(R) = 1 / (R^0.6)

Total Score = Sum of all active players' scores

The exponent 0.6 creates a dampened curve: top players earn significantly more, but every active player still receives a meaningful share.

Example (100 active players):
RankApprox. Credits/Day
1~263
10~22
50~9
100~6

4.3 Treasury-Eligible Credits

Not all Credits can be exchanged for BCRC. Only Treasury-eligible Credits — earned through ranking distribution while active — qualify for token claims. This prevents inactive accounts and non-game sources from draining the Treasury.

4.4 Deflationary Mechanics

ActionEffect
Exchange Credits → BCRCCredits are burned (removed permanently)
HQ upgrades with GoldGold is burned
Exchange Credits → GoldCredits remain in circulation
Exchange Gold → CreditsGold is removed

This creates a natural economic balance: fewer Credits in circulation over time increases the value of remaining Credits and strengthens the incentive to participate actively.


5. BCRC Token Overview

PropertyDetail
Full NameBCRank Coin
SymbolBCRC
BlockchainPolygon Mainnet
Chain ID137
Token StandardERC-20
Decimals18
Contract0xA64657D89dD444Ec8aAc8dAD055d2a93CaE2bBBA

BCRC is a utility token within the BC Ranking Game ecosystem. It represents on-chain value earned through gameplay and can be used to re-enter the Credits economy or held independently in any Polygon-compatible wallet.


6. Tokenomics

6.1 Initial Supply

At launch, 1,000,000,000 BCRC (1 billion) tokens were minted.

6.2 Initial Allocation

AllocationAmountPercentagePurpose
Development500,000,000 BCRC50.0%Project development & operations
Public Sale499,000,000 BCRC49.9%USDT token sale (first 60 days)
Treasury (initial)1,000,000 BCRC0.1%Player reward pool seed
Total1,000,000,000 BCRC100%

6.3 Monthly Emission

Every 30 days, the BCRC smart contract mints 31,000 new tokens directly to the Treasury contract.

ParameterValue
Mint amount31,000 BCRC
Interval30 days
RecipientBCRankCoinTreasury
Callable byAnyone (when interval has passed)
Catch-upMissed periods are minted in full (no cap)
Annual emission from minting: 31,000 × 12 = 372,000 BCRC per year

This controlled emission ensures a steady supply for active player rewards without unlimited inflation.

6.4 Supply Over Time (Illustrative)

TimeframeCumulative Minted (Treasury)
Launch1,000,000 BCRC (initial)
After 1 year1,000,000 + 372,000 = 1,372,000 BCRC in Treasury
After 5 years1,000,000 + 1,860,000 = 2,860,000 BCRC in Treasury

*Note: Total circulating supply also depends on sale activity, player claims, burns, and dev allocation usage.*


7. Treasury & Distribution

The BCRankCoinTreasury contract holds BCRC tokens allocated for player rewards.

PropertyDetail
Contract0xAC2781295D0dE8624FF4E1C6E71Ce6D43C45843F

7.1 How Claims Work

When an active player exchanges Credits for BCRC:

  1. Player requests a token claim on bc-rankinggame.com
  2. Server verifies: active status, sufficient Treasury-eligible Credits, valid wallet
  3. Server generates a cryptographic signature authorizing the claim
  4. Player submits an on-chain transaction calling claimWithCredits() on the Treasury contract
  5. Treasury contract verifies the signature and transfers BCRC to the player's wallet
  6. Equivalent Credits are burned in the game database

7.2 Security Properties

FeatureDescription
No owner withdrawThe Treasury owner cannot freely drain player reward funds
Server-signed claimsEach payout requires a valid, time-limited server signature
Nonce protectionEach claim uses a unique nonce — signatures cannot be replayed
Pause capabilityClaims can be paused in emergencies without affecting token contract
On-chain transparencyAll claims are visible on PolygonScan

7.3 Monthly Mint Flow

BCRC Token Contract

│ mintMonthlyToTreasury() — 31,000 BCRC every 30 days

BCRankCoinTreasury

│ claimWithCredits() — server-signed player claims

Player Wallet


8. Credits ↔ BCRC Exchange

8.1 Credits → BCRC (Claim)

ParameterValue
Ratio1 Credit = 1 BCRC
EligibilityActive players with Treasury-eligible Credits
MethodclaimWithCredits() on Treasury contract
Credits effectBurned (permanently removed)

8.2 BCRC → Credits (Redeem)

ParameterValue
Ratio1 BCRC = 1 Credit
MethodBurn via BCRCBurnBridge contract
Token effectSent to burn address (0x000…dEaD)
Credits effectCredited to player account

The BCRCBurnBridge exists because mobile wallets (e.g. MetaMask) often block direct transfers to the burn address. The bridge contract provides a standard burnForCredits() function that routes tokens to the dead address.

ContractAddress
BCRCBurnBridge0x487C1388Af10E26BDd6c960442e6DBe7dB5C59a3

8.3 Why 1:1?

The 1:1 peg between Credits and BCRC keeps the in-game economy and on-chain token layer aligned. Credits earned through skill retain equal value when converted to BCRC, and BCRC can re-enter the game economy at the same rate.


9. Token Sale

During the first 60 days after deployment, BCRC could be purchased directly with USDT through the BCRankCoinSale contract.

ParameterValue
Contract0x998458565B81443222e86010Bac84D14add5d3CB
Price0.001 USDT per 1 BCRC
Duration60 days from sale start
AllocationUp to 499,000,000 BCRC
After saleUnsold tokens moved to Treasury via finalizeSale()

After the sale period ends, the USDT purchase route closes permanently. Remaining unsold tokens are transferred to the Treasury to support future player rewards.


10. Smart Contracts

All BCRC ecosystem contracts are deployed on Polygon Mainnet and verified on PolygonScan.

ContractAddressPolygonScan
BCRankCoin (BCRC Token)0xA64657D89dD444Ec8aAc8dAD055d2a93CaE2bBBAView Code
BCRankCoinTreasury0xAC2781295D0dE8624FF4E1C6E71Ce6D43C45843FView Code
BCRankCoinSale0x998458565B81443222e86010Bac84D14add5d3CBView Code
BCRCBurnBridge0x487C1388Af10E26BDd6c960442e6DBe7dB5C59a3View Code
BCRankCoinBundleVault (USDC)0x19AC02f2f856AB88E9946c6c6d11d7943Ad7db08View Code
BCRankCoinUsdtBundleVault (USDT)0x8E3F30A708070fD20aC47e81502e5677210E816CView Code

10.1 Contract Roles

BCRankCoin (Token) BCRankCoinTreasury BCRankCoinSale BCRCBurnBridge Bundle Vaults (USDC / USDT)

11. Economic Flywheel

The BCRC ecosystem creates a self-reinforcing economic loop:

┌─────────────────────────────────────────────────────────┐

│ BC RANKING GAME │

│ │

│ Play → Earn Ranking Points → Receive Credits │

│ │ │

│ ┌──────────┴──────────┐ │

│ ▼ ▼ │

│ Buy Gold (1:1) Claim BCRC (1:1) │

│ │ │ │

│ HQ Upgrades Hold / Trade │

│ (Gold burned) │ │

│ │ ▼ │

│ │ Redeem BCRC → Credits │

│ │ (BCRC burned) │

│ ▼ │ │

│ Stronger Army │ │

│ │ │ │

│ └──────────┬──────────┘ │

│ ▼ │

│ Climb Ranking → More Credits │

└─────────────────────────────────────────────────────────┘

Monthly +31,000 BCRC → Treasury

Active Players Claim BCRC

Key dynamics:
  1. Skill-based rewards — better players earn more Credits
  2. Activity gate — only active players (≤200 turns) participate in the token economy
  3. Deflationary pressure — Credits and Gold are burned through upgrades and BCRC claims
  4. Steady emission — 31,000 BCRC/month replenishes the Treasury for ongoing rewards
  5. Two-way bridge — BCRC can flow in and out of the game at 1:1

12. Security & Transparency

PrincipleImplementation
On-chain verificationAll contracts verified on PolygonScan
No Treasury backdoorOwner cannot freely withdraw player reward funds
Signature-based claimsServer authorizes each payout with cryptographic proof
Replay protectionPer-wallet nonces prevent duplicate claims
Public supply dataTotal supply and mint events visible on-chain
Emergency controlsClaims can be paused without locking player wallets
Low feesPolygon network keeps transaction costs minimal

Players can independently verify:


13. Roadmap & Vision

BCRC is designed as a long-term utility token tied to an actively maintained competitive game.

Current status (July 2026): Future direction:

The core vision remains unchanged: reward skillful, active gameplay with a transparent, on-chain token that players truly earn.


14. Disclaimer

This whitepaper is for informational purposes only. It does not constitute financial, investment, legal, or tax advice.

BC-RankingGame.com accepts no liability for damage, disruptions, loss of value, or other problems arising from or related to the BCRC cryptocurrency, wallet issues, blockchain transactions, third parties such as MetaMask, or the use of the website.

Only use funds you can afford to lose.
BCRank Coin (BCRC) — Play. Rank. Earn. bc-rankinggame.com

© 2026 BC Ranking Game. All rights reserved.