Every release or compromise agreement shall be in writing and duly executed, and the signature of the employee or other beneficiary shall be attested by two disinterested witnesses or acknowledged before a notary public. The document shall specify:
(a) The date of the accident.
(b) The average weekly wages of the employee, determined according to Chapter 1 of Part 2 of this division.
(c) The nature of the disability, whether total or partial, permanent or temporary.
(d) The amount paid, or due and unpaid, to the employee up to the date of the release or agreement or death, and the amount of the payment or benefits then or thereafter to be made.
(e) The length of time such payment or benefit is to continue.
(f) In the event a claim of lien under subdivision (f) or (g) of Section 4903 has been filed, the number of days and the amount of temporary disability indemnity which should be allowed to the lien claimant.