The JIL Liquidity Bootstrapping Pool uses dynamic weight-shifting to ensure fair price discovery. No front-running, no bots, no whales - just transparent, market-driven pricing on our native L1.
The JIL Liquidity Bootstrapping Pool (LBP) is the primary distribution mechanism for the JIL token on the native JIL settlement protocol. Through a weighted constant-product automated market maker, the LBP enables transparent, market-driven price discovery for 100,000,000 JIL tokens (20% of the 500M total supply) over a 72-hour window.
Unlike traditional token sales with fixed prices or Dutch auctions with predetermined floors, the LBP uses dynamic weight shifting to create natural downward price pressure. The token weight begins at 96% and linearly decreases to 50% over the sale duration. This mechanism inherently discourages front-running, bot activity, and whale accumulation, producing a final price that genuinely reflects market demand.
Weight shifting creates natural price decline, ensuring early premium diminishes over time and final price reflects true demand.
$500K per-wallet cap and KYC verification ensure broad distribution across verified participants.
Runs natively on JIL L1 with 1.5-second finality, eliminating Ethereum gas wars and MEV extraction.
The JIL LBP employs a weighted constant-product automated market maker. Unlike standard AMMs (where both assets have equal 50/50 weight), the LBP dynamically adjusts the weights of the token and reserve asset over time. This weight adjustment is the core mechanism that drives fair price discovery.
The invariant maintained by the pool is:
R_token^W_token * R_reserve^W_reserve = k (constant)Where R_token and R_reserve are the pool balances, and W_token and W_reserve are the respective weights that sum to 1.0.
The instantaneous price of JIL in USDC at any given moment is derived from:
price = (R_reserve / W_reserve) / (R_token / W_token)
= (R_reserve * W_token) / (R_token * W_reserve)R_reserve = $500,000 USDC W_token = 0.96 (96%)
R_token = 100,000,000 JIL W_reserve = 0.04 (4%)
price = ($500,000 * 0.96) / (100,000,000 * 0.04)
= $480,000 / $4,000,000
= $0.12 per JILW_token decreases from 0.96 to 0.50 (and W_reserve increases from 0.04 to 0.50), the denominator grows relative to the numerator, creating natural downward price pressure even without any selling. This is what makes LBPs fundamentally different from standard AMM pools.
When a buyer contributes amount_in USDC (after the 2% fee), the JIL tokens received are:
fee = amount_in * 0.02
amount_after_fee = amount_in - fee
tokens_out = R_token * amount_after_fee * W_token
/ (R_reserve * W_reserve + amount_after_fee * W_token)After each swap, the pool reserves update: R_reserve increases by amount_after_fee and R_token decreases by tokens_out.
The JIL LBP uses a linear weight curve. At any point during the 72-hour period:
progress = elapsed_time / total_duration (0.0 to 1.0)
W_token = start_weight - (start_weight - end_weight) * progress
= 0.96 - (0.96 - 0.50) * progress
= 0.96 - 0.46 * progress
W_reserve = 1.0 - W_token| Time | Progress | Token Weight | Reserve Weight | Price (no trades) |
|---|---|---|---|---|
| 0h (Start) | 0% | 96.0% | 4.0% | $0.1200 |
| 12h | 16.7% | 88.3% | 11.7% | $0.0378 |
| 24h | 33.3% | 80.7% | 19.3% | $0.0209 |
| 36h | 50.0% | 73.0% | 27.0% | $0.0135 |
| 48h | 66.7% | 65.3% | 34.7% | $0.0094 |
| 60h | 83.3% | 57.7% | 42.3% | $0.0068 |
| 72h (End) | 100% | 50.0% | 50.0% | $0.0050 |
Note: These prices assume zero purchases. Actual buying pressure will counteract the weight-driven price decline, establishing a market equilibrium.
The JIL AMM v5 engine supports four weight curve types. Each produces a different price trajectory over the sale period. The JIL token LBP uses the Linear curve for predictable, steady price decline.
progress = t - Weight decreases at a constant rate. Most predictable and intuitive for participants. Used by the JIL LBP.
progress = t² - Weight decreases slowly at first, then accelerates. Favors early buyers with a longer premium window.
progress = log(1 + 9t) / log(10) - Fast initial decline that slows over time. Quickly reaches fair value then stabilizes.
progress = floor(t × 4) / 4 - Weight changes in discrete 25% steps. Creates four distinct pricing tiers during the sale.
The JIL LBP incorporates multiple layers of protection against common token sale attack vectors. These protections are enforced at the smart contract level and cannot be circumvented.
| Protection | Mechanism | Parameter |
|---|---|---|
| Anti-Bot Blocks | Purchases are rejected during the first N blocks after LBP start, preventing automated sniping bots from front-running human participants. | 10 blocks (~15 seconds) |
| Per-Wallet Cap | Each verified wallet address has a maximum cumulative purchase limit, preventing whale accumulation. | $500,000 USDC |
| Total Raise Hard Cap | The LBP automatically closes when total raised reaches the cap, protecting against over-subscription. | $10,000,000 USDC |
| KYC Verification | All participants must complete Know Your Customer verification before purchasing, ensuring regulatory compliance and preventing Sybil attacks. | Required |
| Weight Bounds | Pool weights are clamped to [0.01, 0.99] to prevent mathematical edge cases and price manipulation at extremes. | 1% - 99% |
| Native L1 Execution | Running on JIL L1 eliminates Ethereum MEV extraction, sandwich attacks, and gas auction manipulation. | 1.5s finality |
The JIL LBP runs as a native application on the JIL settlement protocol, with the core pricing engine implemented in Rust and the API layer in TypeScript.
Core pricing engine implementing weighted constant-product math, curve calculations, swap execution, and anti-manipulation enforcement. Located in crates/ammv5-core/src/weighted_pool.rs.
REST API serving real-time price quotes, pool statistics, purchase execution, and 200-point price history charts. Endpoints at /v1/lbp/auctions/:id/*.
All LBP events (purchases, price updates, pool creation/completion) are published to the jil.events Kafka topic for downstream analytics and auditing.
Pool configuration and purchase history persisted in lbp_weighted_pools and lbp_purchases tables with full audit trail.
| Method | Endpoint | Description |
|---|---|---|
| GET | /v1/lbp/auctions/:id/price | Current price, token/reserve weights, pool progress |
| GET | /v1/lbp/auctions/:id/stats | Total raised, tokens sold, participants, average price |
| GET | /v1/lbp/auctions/:id/chart | 200-point price history time series |
| POST | /v1/lbp/auctions/:id/participate | Execute purchase at current LBP price |
Participation in the JIL LBP involves risk. Prospective participants should carefully consider the following factors before purchasing.
The LBP price fluctuates continuously based on weight changes and participant activity. The price you see at quote time may differ from the executed price if other transactions are processed first.
Unlike fixed-price sales, there is no predetermined minimum price. If demand is insufficient, the price will continue to decline as weights shift.
Buying too early means paying a higher premium. Buying too late risks the hard cap being reached or the sale ending. There is no universally optimal entry point.
Cryptocurrency tokens are subject to evolving regulatory frameworks. JIL tokens may be classified differently across jurisdictions. KYC verification is required for all participants.
Connect your JIL L1 wallet to begin
The JIL LBP uses dynamic weight-shifting: the token weight starts high and decreases over 72 hours, creating natural downward price pressure that rewards patient buyers and prevents front-running.
Connect your JIL L1 wallet. If you don't have one yet, create one instantly through the JIL Wallet app with MPC 2-of-3 self-custody.
→Specify how much USDC you want to contribute. You'll see a live quote of JIL tokens you'll receive at the current price. Max $50K per wallet.
→Confirm your transaction. JIL tokens are transferred to your wallet instantly on JIL L1 with 1.5-second finality. No vesting, no lockups.
Real-time metrics from the JIL LBP smart contract on JIL L1.
100M JIL (20% of total supply) allocated to the LBP for fair, transparent distribution.
LBP allocation highlighted below
Everything you need to know about the JIL Token LBP.
Your LBP launches into the full JIL ecosystem. Tokens instantly tradable on the DEX.
MPC 2-of-3 self-custody with $250K+ protection coverage. Participate in LBP launches.
Post-LBP trading on the dual-lane DEX. Batch auctions + RFQ for institutions.
Full launch setup tool. IDO, Dutch auction, fixed price - all compliant.
Create your token before launching the LBP. Zero code, fully compliant.
The following table contains every configurable parameter for the JIL token LBP. All parameters are enforced at the smart contract level.
| Parameter | Value | Notes |
|---|---|---|
| Pool ID | jil_usdc_lbp_100m | Unique identifier |
| Trading Pair | JIL / USDC | Native L1 assets |
| Token Supply | 100,000,000 JIL | 20% of 500M total |
| Initial Reserve | $500,000 USDC | Seed liquidity |
| Start Weight (Token) | 96% | High initial token weight |
| End Weight (Token) | 50% | Equal weights at conclusion |
| Duration | 72 hours | 3 calendar days |
| Curve Type | Linear | Constant rate of weight change |
| Swap Fee | 200 bps (2%) | Standard JIL DEX fee |
| Per-Wallet Cap | $500,000 USDC | Anti-whale protection |
| Total Raise Cap | $10,000,000 USDC | Hard cap, auto-closes |
| Anti-Bot Blocks | 10 blocks | ~15 seconds grace period |
| KYC Required | Yes | Regulatory compliance |
| Block Time | 1.5 seconds | JIL L1 native |
| Finality | Instant (single-slot) | No confirmation wait |