Blockchain confirmations represent the number of blocks that have been added to the blockchain after a transaction was included. More confirmations mean higher security and lower risk of reversal.Transaction is broadcast to the network
A miner/validator includes it in a block (1 confirmation)
Each new block added increases the count
Higher counts mean greater finality Confirmations Risk Level Use Case 0 (unconfirmed) High Not recommended 1-5 Medium Small transactions 6-19 Low Standard payments 20+ Very Low High-value transactions Network Block Time Typical Requirement TRON ~3 seconds 19 confirmations Ethereum ~12 seconds 12-35 confirmations Bitcoin ~10 minutes 6 confirmations BNB Chain ~3 seconds 15 confirmations Send a transaction
Create an alternate chain that doesn't include it
If their chain becomes longest, the transaction is reversed Too few: Risk of payment reversal
Too many: Unnecessary delay for customers
Just right: Balance of speed and security ~1 minute total confirmation time
Extremely low reversal risk
Fast customer experience USDT (TRC-20)
Crypto Payment Gateway
Settlement Crypto Checkout Flow Guide
How It Works
How Confirmations Work
Confirmation Requirements by Risk Level
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Network Comparison
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Why Confirmations Matter
Double-Spend Prevention
Without confirmations, a malicious actor could:
Merchant Protection
Pulse2Pay Default
Pulse2Pay uses 19 confirmations for TRON USDT: