Dispute resolution cryptocurrency sidechain system

A method, comprising:

• detecting, by a computer system, that a transaction amount for a transaction has been received at a receiver public ledger address on a public ledger from a sender public ledger address;
• automatically allocating, by the computer system in response to the detecting, a sidechain dispute address on a dispute resolution sidechain ledger that corresponds to the receiver public ledger address;
• transmitting the sidechain dispute address through a network to a sender device and a receiver device, the sender device associated with a sender involved in the transaction and the receiver device associated with a recipient involved in the transaction;
• monitoring the sidechain address for dispute communications for a specified period of time;
• detecting a first dispute communication that is received at the sidechain address and that is signed using a private key that identifies the sender;
• and
• causing, based at least in part on detecting the first dispute communication, at least a portion of the transaction amount that was received at the receiver public ledger address to be sent back to the sender public ledger address.

A non-transitory computer readable medium having instructions stored thereon that are executable by a computer system to cause the computer system to perform operations comprising:

• detecting that a transaction amount for a transaction has been received at a receiver public ledger address on a public ledger from a sender public ledger address;
• automatically allocating, in response to the detecting, a sidechain dispute address on a dispute resolution sidechain ledger that corresponds to the receiver public ledger address;
• transmitting the sidechain dispute address through a network to a sender device and a receiver device, the sender device associated with a sender involved in the transaction and the receiver device associated with a recipient involved in the transaction;
• monitoring the sidechain address for dispute communications for a specified period of time;
• detecting a first dispute communication that is received at the sidechain address and that is signed using a private key that identifies the sender;
• and
• causing, based at least in part on detecting the first dispute communication, at least a portion of the transaction amount that was received at the receiver public ledger address to be sent back to the sender public ledger address.