PoTT Principle (Proof of Token Transfer)
PoTT is an innovative RWA payment middleware that connects crypto holders to precious metal dealers via the Comptoir partner network. SLV tokens serve as payment utility only (no backing, no reserve, no convertibility). An immutable proof of payment is recorded on-chain. Merchants receive standard bank transfers (T+1), never handling crypto.
5-Step Process
Select Silver Bar
You select a silver bar (50g, 100g, or 200g). The price is calculated automatically based on the silver spot price and converted into SLV tokens.
Automatic Conversion
The system calculates the exact SLV amount required. For example: 100g × €1.36/g = €136 → 27,200 SLV (at €0.005/token).
PoTT Transaction (instant on-chain validation)
Your wallet executes the burnWithPoTT() function on the smart contract.
Tokens are burned according to a progressive rate (0.1% to 1%), and a 1% platform fee
is charged. The PoTT proof is recorded instantly on the blockchain
– your purchase is validated immediately by SOLVIRA.
T+1 Bank Transfer to Merchant
On the next business day (T+1), the merchant receives a standard bank transfer in fiat currency. They never need to handle cryptocurrencies. For them, it's a standard payment credited on the next business day.
Public Proof
The transaction is recorded on the Ethereum blockchain with a unique identifier (e.g., BAR-100G-1234). This proof is permanent, verifiable, and tamper-proof. Publicly viewable on Etherscan by anyone.
Real-World Example
Fees Applied
The merchant receives €136 via T+1 bank transfer (credited next business day). The blockchain transaction contains the reference BAR-100G-XXXX as immutable proof.
PoTT Advantages
Maximum Security
All transactions are recorded on the Ethereum blockchain. Immutability and transparency guaranteed.
Instant Validation + T+1 Transfer
Instant customer-side validation on the blockchain, then T+1 bank transfer to the merchant's account (credited next business day).
Deflationary Burn
Each transaction burns tokens, reducing supply and supporting SLV's long-term value.
Zero Complexity
The merchant never handles crypto. For them, it's like a card payment.