Protocol Guide

Everything you need to understand STABLEGOLD in one page.

Plain-language rules for fees, daily state, rebalance logic, and how to participate.

What is STABLEGOLD?

STABLEGOLD (STBLG) is a Solana token that mints and redeems directly against a USDC reserve vault — there is no AMM or liquidity pool. Price is calculated on-chain:

Price = USDC Reserve ÷ Circulating Supply

The protocol targets +0.25% daily growth. Fees collected before that target is met build the reserve; fees after go into a reserve support vault. All trades are direct on-chain calls signed from your own wallet — we never hold your funds.

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Fee Structure

Simple fee paths with visible routing.

Every fee has two parts: a fixed 0.1% dev cut and a protocol portion whose destination depends on whether the daily target has been cleared yet.

Action Total Fee Dev Cut Before Target After Target
Buy 3% 0.1% 2.9% deepens USDC backing vault 2.9% minted into reserve support vault
Sell 2% 0.1% 1.9% burned (STBLG destroyed) 1.9% routed to reserve support vault

Daily State

Two deterministic modes — reset at 12:15 AM ET.

Each day the protocol starts in Phase A. Once cumulative buys push the price to the +0.25% target, it flips to Phase B for the remainder of that day. It cannot flip back. At 12:01 AM ET, the protocol checks whether the day closed at +0.25% and burns from the reserve-for-burn vault if needed. The clock resets at 12:15 AM ET.

Price is monotonically non-decreasing within a day — a sell never lowers the implied price. A buy that would cross the target is split automatically: just enough processes at Phase A rates to land exactly on the target, the rest at Phase B rates, all in a single transaction.

Phase A · Before Target

Reserve-building mode

  • Buy: 2.9% deepens the USDC backing vault
  • Sell: 1.9% burned (STBLG destroyed)
  • Buys and sells also take a 0.1% dev fee

Phase B · After Target

Reserve-support accumulation mode

  • Buy: 2.9% minted into reserve support vault
  • Sell: 1.9% routed to reserve support vault
  • Buys and sells also take a 0.1% dev fee

Rebalance Engine

Adaptive, but bounded.

Market signals (gold price move, DXY, US 2Y yield, geo risk, inflation, news sentiment) are mapped to a stress score from −1.0 to +1.0. That score sets the Gold/USDC target ratio, clamped to 30%–70% rails. Rebalance only fires on material drift from target (7.5% effective drift). Realized upside is tracked separately from the base layer.

  • Trigger: 7.5% effective drift from target ratio
  • Gold/USDC target range: 30% – 70%
  • Signal inputs: gold move, DXY, 2Y yield, geo risk, inflation, sentiment
  • Upside tracked separately — base layer accounting stays clean

Layer Separation

Base utility and treasury upside are not mixed.

  • Base layer: daily fee-supported progression toward the +0.25% target
  • Upside layer: rebalance gains and hedge wins tracked separately
  • Clear accounting keeps protocol behavior easy to audit
  • Community can verify both layers independently on-chain at any time

Community

Usefulness over hype.

  • Focus on wallet flow clarity and merchant adoption
  • Raise blockers and UX issues early and clearly
  • Promote practical education for new users
  • Keep discussion constructive, specific, and evidence-based

Participation

One place to understand and contribute.

Use the Live Dashboard for current state and the trade desk for execution. This guide is the single reference for protocol behavior and community direction.

Mint Addresses & Program IDs

Core on-chain references for Solana mainnet.

Verify independently at any time on Solscan or any Solana explorer.

Token Mints

STBLG Mint?
STBLG Mint
The official SPL token mint address for STBLG on Solana. This is the canonical identifier for the token — used by wallets, explorers, and DeFi protocols to recognize STBLG. All tokens are minted from this address by the program's mint authority.
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USDC Mint?
USDC Mint
The official USDC token mint address on Solana, issued by Circle. STABLEGOLD uses USDC as its primary backing asset — buyers pay USDC in, sellers receive USDC out from the backing vault.
EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v
Gold Mint (XAUM · Matrixdock)?
Gold Mint (XAUM)
The on-chain mint for XAUM — a tokenized gold asset issued by Matrixdock on Solana. STABLEGOLD holds XAUM in its Gold Backing Vault to provide real gold price exposure as part of the 30–70% gold band target.
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Token Standard?
Token Standard
STBLG is a standard Solana SPL Token with 9 decimal places of precision — the same format used by USDC, SOL, and most major Solana assets. This ensures full compatibility with wallets, explorers, and DeFi infrastructure.
SPL Token · 9 decimals

Program & PDAs

Program ID?
STABLEGOLD Program ID
The on-chain address of the deployed Anchor smart contract that powers all STBLG operations. Every buy, sell, transfer, burn, and rebalance action calls this program. You can inspect all instructions and accounts on-chain via any Solana explorer.
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Token Program?
Solana Token Program
Solana's native SPL Token Program — the foundational program that handles all token account creation, transfers, and minting. STBLG is built on this standard program, ensuring compatibility with every Solana wallet and protocol.
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Mint Authority PDA?
Mint Authority PDA
A Program Derived Address (PDA) that holds exclusive authority to mint new STBLG tokens. Because it's a PDA, it has no private key — it can only be controlled by the STABLEGOLD program itself, ensuring tokens are only minted through legitimate buy transactions.
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Vault Authority PDA?
Vault Authority PDA
A keyless Program Derived Address with signing authority over the backing vaults. This PDA enables the program to move USDC and XAUM during buys, sells, and rebalancing — without any human custody or private key exposure.
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Program Config PDA?
Program Config PDA
Stores the protocol's configuration parameters on-chain — including fee rates (buy 3%, sell 2%, transfer 1%), vault addresses, rebalance thresholds, and admin settings. Set at deployment and only updatable by the program authority.
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Program State PDA?
Program State PDA
Holds the live runtime state of the protocol — current circulating supply, cumulative burns, whether the +0.25% daily target has been hit, active fee mode (burn vs. reserve support), and other values updated on every transaction.
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Reserve Vaults

USDC Backing Vault?
USDC Backing Vault
The primary reserve vault that holds USDC backing STBLG's value. Buyers send USDC here; sellers receive USDC from here. Its balance divided by circulating supply determines the STBLG price floor — fully verifiable on-chain at any time.
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Gold Backing Vault?
Gold Backing Vault
Holds XAUM (tokenized gold) to provide the gold exposure component of STBLG's backing. The protocol rebalances between this vault and the USDC vault based on live market signals to maintain the 30–70% gold band target.
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Reserve Support Vault?
Reserve Support Vault
Accumulates a portion of sell and transfer fees once the +0.25% daily price target is reached. Serves as a secondary reserve buffer — deepening backing over time and strengthening the peg for all holders without minting new supply.
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Tax Reserve Vault?
Tax Reserve Vault
Collects the 0.1% developer fee from every transaction — buys and sells. These funds support ongoing protocol development, infrastructure costs (RPC, oracle, workers), and maintenance of the STABLEGOLD ecosystem.
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Price Feed

Switchboard Feed (Quote Account)?
Switchboard Oracle Feed
A decentralized Switchboard oracle on Solana providing real-time XAU/USD (gold price) data to the STABLEGOLD program. Used during rebalancing decisions to ensure fair, manipulation-resistant gold pricing without relying on any centralized source.
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Feed Hash?
Feed Hash
The unique cryptographic hash that identifies and verifies the specific Switchboard price feed configuration used by STABLEGOLD. This hash ensures the program always reads from the exact oracle feed it was configured with, preventing feed substitution attacks.
0xd746a1baa9e262fd4fdf0ae41e3501b0a1b01e9fbdc8b5aec8d50f45fcd2dea0
Price Worker?
Price Worker
A Cloudflare Worker endpoint that aggregates real-time price data for the STABLEGOLD UI — including STBLG/USDC price, SOL price, and gold (XAU) price. Provides fast, cached price feeds to power the live market signals and protocol state display. Each response is Ed25519-signed so consumers can verify authenticity.
stablegold-price-feed.stablegold.workers.dev/price
Signed Feed Public Key?
Signed Feed Public Key
The Ed25519 public key used to sign the /price payload. Anyone can use this key to cryptographically verify that a price response genuinely came from the STABLEGOLD feed and was not tampered with in transit.
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