BCRank Coin (BCRC) Whitepaper
The Play-to-Earn Token of BC Ranking GameVersion 1.0 — July 2026
Website: https://bc-rankinggame.com
Table of Contents
- Executive Summary
- Introduction
- BC Ranking Game Overview
- Credits Economy
- BCRC Token Overview
- Tokenomics
- Treasury & Distribution
- Credits ↔ BCRC Exchange
- Token Sale
- Smart Contracts
- Economic Flywheel
- Security & Transparency
- Roadmap & Vision
- 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:
| Property | Value |
|---|---|
| Token Name | BCRank Coin |
| Symbol | BCRC |
| Network | Polygon (MATIC) |
| Standard | ERC-20 (18 decimals) |
| Initial Supply | 1,000,000,000 BCRC |
| Monthly Emission | 31,000 BCRC every 30 days |
| Credits Exchange | 1 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:
- Gameplay — ranking, battles, HQ upgrades, and resource management
- In-game economy — Credits and Gold with deflationary mechanics
- 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.
| Status | Condition | Credits | BCRC 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:
- Spy — Reveal attack odds, stealable gold, and ranking point potential
- Attack — Battle other players to steal gold and gain ranking points
Win Chance (%) = (Your Attack / (Your Attack + Target Defense)) × 100
Ranking points on attack:
| Scenario | Formula | Example |
|---|---|---|
| Attack upward (lower rank vs higher rank) | 10 + rank difference | Rank 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 rank | 10 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:
| Type | Description |
|---|---|
| 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:
| Destination | Share |
|---|---|
| Vault Gold | 50% |
| Owned Gold | 37.5% |
| Stealable Gold | 12.5% |
3.6 Headquarters (HQ) & Deflation
In the HQ, players invest Vault Gold to upgrade:
- Attack Points
- Defense Points
- Spy Points
- Anti-Spy Points
- Extra Battle Turns (1 Gold per turn)
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.
| Parameter | Value |
|---|---|
| Distribution interval | Every 30 minutes |
| Credits per interval | 20.82 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):| Rank | Approx. 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
| Action | Effect |
|---|---|
| Exchange Credits → BCRC | Credits are burned (removed permanently) |
| HQ upgrades with Gold | Gold is burned |
| Exchange Credits → Gold | Credits remain in circulation |
| Exchange Gold → Credits | Gold 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
| Property | Detail |
|---|---|
| Full Name | BCRank Coin |
| Symbol | BCRC |
| Blockchain | Polygon Mainnet |
| Chain ID | 137 |
| Token Standard | ERC-20 |
| Decimals | 18 |
| Contract | 0xA64657D89dD444Ec8aAc8dAD055d2a93CaE2bBBA |
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
| Allocation | Amount | Percentage | Purpose |
|---|---|---|---|
| Development | 500,000,000 BCRC | 50.0% | Project development & operations |
| Public Sale | 499,000,000 BCRC | 49.9% | USDT token sale (first 60 days) |
| Treasury (initial) | 1,000,000 BCRC | 0.1% | Player reward pool seed |
| Total | 1,000,000,000 BCRC | 100% |
6.3 Monthly Emission
Every 30 days, the BCRC smart contract mints 31,000 new tokens directly to the Treasury contract.
| Parameter | Value |
|---|---|
| Mint amount | 31,000 BCRC |
| Interval | 30 days |
| Recipient | BCRankCoinTreasury |
| Callable by | Anyone (when interval has passed) |
| Catch-up | Missed periods are minted in full (no cap) |
This controlled emission ensures a steady supply for active player rewards without unlimited inflation.
6.4 Supply Over Time (Illustrative)
| Timeframe | Cumulative Minted (Treasury) |
|---|---|
| Launch | 1,000,000 BCRC (initial) |
| After 1 year | 1,000,000 + 372,000 = 1,372,000 BCRC in Treasury |
| After 5 years | 1,000,000 + 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.
| Property | Detail |
|---|---|
| Contract | 0xAC2781295D0dE8624FF4E1C6E71Ce6D43C45843F |
7.1 How Claims Work
When an active player exchanges Credits for BCRC:
- Player requests a token claim on bc-rankinggame.com
- Server verifies: active status, sufficient Treasury-eligible Credits, valid wallet
- Server generates a cryptographic signature authorizing the claim
- Player submits an on-chain transaction calling
claimWithCredits()on the Treasury contract - Treasury contract verifies the signature and transfers BCRC to the player's wallet
- Equivalent Credits are burned in the game database
7.2 Security Properties
| Feature | Description |
|---|---|
| No owner withdraw | The Treasury owner cannot freely drain player reward funds |
| Server-signed claims | Each payout requires a valid, time-limited server signature |
| Nonce protection | Each claim uses a unique nonce — signatures cannot be replayed |
| Pause capability | Claims can be paused in emergencies without affecting token contract |
| On-chain transparency | All 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)
| Parameter | Value |
|---|---|
| Ratio | 1 Credit = 1 BCRC |
| Eligibility | Active players with Treasury-eligible Credits |
| Method | claimWithCredits() on Treasury contract |
| Credits effect | Burned (permanently removed) |
8.2 BCRC → Credits (Redeem)
| Parameter | Value |
|---|---|
| Ratio | 1 BCRC = 1 Credit |
| Method | Burn via BCRCBurnBridge contract |
| Token effect | Sent to burn address (0x000…dEaD) |
| Credits effect | Credited 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.
| Contract | Address |
|---|---|
| BCRCBurnBridge | 0x487C1388Af10E26BDd6c960442e6DBe7dB5C59a3 |
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.
| Parameter | Value |
|---|---|
| Contract | 0x998458565B81443222e86010Bac84D14add5d3CB |
| Price | 0.001 USDT per 1 BCRC |
| Duration | 60 days from sale start |
| Allocation | Up to 499,000,000 BCRC |
| After sale | Unsold 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.
| Contract | Address | PolygonScan |
|---|---|---|
| BCRankCoin (BCRC Token) | 0xA64657D89dD444Ec8aAc8dAD055d2a93CaE2bBBA | View Code |
| BCRankCoinTreasury | 0xAC2781295D0dE8624FF4E1C6E71Ce6D43C45843F | View Code |
| BCRankCoinSale | 0x998458565B81443222e86010Bac84D14add5d3CB | View Code |
| BCRCBurnBridge | 0x487C1388Af10E26BDd6c960442e6DBe7dB5C59a3 | View Code |
| BCRankCoinBundleVault (USDC) | 0x19AC02f2f856AB88E9946c6c6d11d7943Ad7db08 | View Code |
| BCRankCoinUsdtBundleVault (USDT) | 0x8E3F30A708070fD20aC47e81502e5677210E816C | View Code |
10.1 Contract Roles
BCRankCoin (Token)- Mints initial supply and monthly Treasury allocation
mintMonthlyToTreasury()— permissionless, interval-gated
- Holds player reward BCRC
claimWithCredits()— server-signed player withdrawals- No unrestricted owner withdrawal function
buyWithUSDT()— public purchase during 60-day windowfinalizeSale()— moves unsold tokens to Treasury
burnForCredits()— burns BCRC for off-chain Credits
- Receive stablecoin payments for in-game bundles (Battlepoints, PowerPlay, combos)
- Separate from BCRC token sale — dedicated payment infrastructure for premium game items
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:
- Skill-based rewards — better players earn more Credits
- Activity gate — only active players (≤200 turns) participate in the token economy
- Deflationary pressure — Credits and Gold are burned through upgrades and BCRC claims
- Steady emission — 31,000 BCRC/month replenishes the Treasury for ongoing rewards
- Two-way bridge — BCRC can flow in and out of the game at 1:1
12. Security & Transparency
| Principle | Implementation |
|---|---|
| On-chain verification | All contracts verified on PolygonScan |
| No Treasury backdoor | Owner cannot freely withdraw player reward funds |
| Signature-based claims | Server authorizes each payout with cryptographic proof |
| Replay protection | Per-wallet nonces prevent duplicate claims |
| Public supply data | Total supply and mint events visible on-chain |
| Emergency controls | Claims can be paused without locking player wallets |
| Low fees | Polygon network keeps transaction costs minimal |
Players can independently verify:
- Token total supply on PolygonScan
- Treasury balance
- Monthly mint transactions
- Their own claim and burn history
13. Roadmap & Vision
BCRC is designed as a long-term utility token tied to an actively maintained competitive game.
Current status (July 2026):- ✅ BCRC live on Polygon Mainnet
- ✅ Treasury, Sale, Burn Bridge, and Bundle Vaults deployed
- ✅ Credits ↔ BCRC exchange operational
- ✅ Monthly mint mechanism active
- Expand player base and ranking competition
- Additional in-game utility for BCRC holders
- Community features and seasonal events
- Continued smart contract audits and transparency reporting
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.
- BCRC is a utility token within the BC Ranking Game ecosystem, not a security or investment product.
- Cryptocurrency and blockchain transactions involve significant risk, including total loss of value.
- Past in-game performance or token distribution does not guarantee future results.
- Smart contracts are deployed on a public blockchain; while audited and tested, no system is without risk.
- Always Do Your Own Research (DYOR) before interacting with any cryptocurrency.
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.© 2026 BC Ranking Game. All rights reserved.