For a coastal authority
Nothing here asks a ministry to join a market.
The counterparty is the program operator, on whatever terms your office already sets for work in your waters. No account to open, no onboarding, no payment relationship, no software to accept. If a program in your jurisdiction is being sponsored, the sponsorship happens somewhere else entirely and the permission conversation stays with you.
One point is worth stating plainly, because it is the failure mode that would embarrass everybody at once. Showing publicly who has contributed most to a particular place, at the finest resolution the map holds, over another state's territorial sea, is a publication act. It runs only where the responsible authority has permitted exactly that. Otherwise the display steps back to the whole program zone, which says who is helping without pointing anyone at a specific patch of somebody's water.
Where such a standing does appear, it carries the date it was last certified. Contributions are counted on a cycle rather than the instant money moves, so a figure can be up to a month behind the money without either number being wrong. Hiding that gap would misrepresent how the figure was built, so it is printed beside it.
None of this is theoretical courtesy. Sponsorship opening over water whose maritime status is contested is the single most avoidable diplomatic incident in the design, which is why it is closed by a check that runs every time rather than by a policy somebody is asked to remember.