that's not how bitcoin works. the blockchain (the ledger) can fork into competing chains. if your client and my client disagree about which is the live chain we

that's not how bitcoin works. the blockchain (the ledger) can fork into competing chains. if your client and my client disagree about which is the live chain we can't transact. the core bitcoin team can only suggest which chain to consider the live chain. anyone who disagrees is free to use different chains.