Legal analysis: You don't need the following evidence to prove that you owe money:

1. Creditor's rights certificates such as IOU receipts and IOUs.

second, call recording and other reminders to return the recorded materials.

third, electronic data such as chat records prove that the other party owes money and does not pay it back.

iv. proof that the other party has the ability to repay the money.

Legal basis: Article 63 of the Civil Procedure Law includes

(1) statements of the parties;

(2) documentary evidence;

(3) physical evidence;

(4) audio-visual materials;

(5) electronic data;

(6) witness testimony;

(7) appraisal opinions;

(8) record of inspection.

evidence must be verified before it can be used as a basis for ascertaining facts.

Article 116 of the Judicial Interpretation of the Civil Procedure Law includes audio-visual materials and video materials.

electronic data refers to information formed or stored in electronic media through e-mail, electronic data exchange, online chat records, blogs, micro-blogs, short messages on mobile phones, electronic signatures, domain names, etc.

the provisions of electronic data shall apply to the recorded data and video data stored in electronic media.