A registered birth to be recorded and witnessed by the informant (parent) and registrar in a parish and then into The Gazette.
The registration of the birth name gives the child its title (legal name).
The registration of a thing gives its title to a register, roll or estate. A legal person is therefore an estate.
The thing can then be conveyed lawfully and in commercial agreements between parties.
The legal title means the child is the property of the state and not the parent.
This is why on the birth certificate it states the name of the informant and not parent. (or first witness if illegitimate)
Because the registration is by consent this means that the property (child) was given to the state willingly.
Statutory law requires consent. Is a birth certificate a death certificate?