Content par jayen

Internet Money · Crypto financial services

One wallet interface across five blockchains

A multi-chain crypto platform where every chain hides behind one interface, with a tamper-evident audit trail underneath it. $10M+ moves through it monthly.

$10M+monthly transaction volume

Aik nazar mein

Muddat
61 hafte
Team ka hajm
6 afraad
Muahide ki naueeyat
Nayi tameer
Project ki qism
Web application
Shoba
Fintech

Soorat-e-haal

Challenge kya tha

Multi-chain integration is a compatibility problem disguised as a feature. Every blockchain brings its own RPC protocol, transaction format, fee model, confirmation semantics and failure modes — and regulation on top of that demanded a complete, tamper-evident audit trail for every transaction and balance query.

Hum ne kya kiya

We put an adapter behind every chain and one interface in front of them all, then built the audit trail as a hash chain rather than a log anyone could quietly edit.

Wo faisle jo aham the

  • A chain-agnostic wallet abstraction

    One adapter per chain — bitcoinjs-lib, ethers.js, web3.js, binance-chain-js — behind a single interface: getBalance, buildTransaction, signTransaction, broadcastTransaction, getTransactionStatus. Chain-specific data lives in opaque JSONB on a unified Transaction type, so adding a chain stopped being a refactor and became an adapter.

  • Price consensus rather than a price source

    CoinGecko, Binance WebSocket and Chainlink aggregated to a median, with outliers beyond 2% rejected and a circuit breaker per source. A single feed is a single point of failure that reports confidently right up until it is wrong.

  • An audit log that cannot be edited quietly

    Row-level hash chaining in PostgreSQL, so tampering breaks the chain and shows up. A separate compliance service generates regulatory reports from those records rather than from live tables.

Kya badla

monthly volume
$10M+monthly volume
uptime
99.99%uptime
to integrate a new chain
2-3 daysto integrate a new chain
price feed consensus latency
<200msprice feed consensus latency
  • $10M+ — across five chains
  • 99.99% — 52 minutes of downtime over 14 months
  • 2-3 days — down from weeks

Zero gaps and zero tamper events across security audits, 99.99% uptime over fourteen months, and a new chain integration measured in days instead of weeks.

Istemal shuda khidmaat

  • Chain-agnostic wallet abstraction with five chain adapters
  • Real-time multi-source price pipeline with consensus and failover
  • Tamper-evident audit log and compliance reporting service
  • Operational runbooks and alerting

Hum kya mukhtalif karte

Har mansoobe mein aisi aik baat hoti hai. Ise shaya karna hi asal nukta hai — jis case study mein koi pachhtawa na ho wo saboot nahi, tashheer hai.

In fintech, correctness is non-negotiable but so is resilience. A system that silently drops a transaction because a downstream RPC node timed out is worse than one that fails loudly. Every external call ended up with explicit retry logic, a timeout budget, a circuit breaker and an alert — built on the assumption of failure rather than the hope of success.

Istemal shuda khidmaat

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