gno.land/r/moul/x/social/patron/v0

Recurring support for a builder, on chain. A creator opens a plan with a price per period and a period measured in blocks; a supporter attaches ugnot to Subscribe and buys whole periods of it; anyone can ask at any height whether a given address is still active.

Open(title, description, pricePerPeriod, periodBlocks) -> planID
Subscribe(planID)            payable, returns the new paid-through height
Close(planID) / Reopen(planID)   creator only
Withdraw()                   earnings and change leave the same way
IsActive(planID, who)        the one question a tip jar cannot answer

There is no cron on chain, so a renewal is a pull and not a push. Nothing here can charge anybody: a renewal happens because the supporter sends another payment, never because a timer fired, and a native coin cannot be pulled at all. A reader arriving from web2 expects a standing mandate on a card; there is nothing of the kind anywhere on this chain, and that is the single most important sentence on this page.

r/moul/x/daily/tipjar is the one-shot version and is already live. The recurrence is the whole difference, and it makes this the one app in the x/social family that produces a recurring write rather than a one-off.

Renewing early never discards time already paid for: an extension runs from whichever is later, now or the current paid-through. Renewing after lapsing runs from now. A payment short of one period is refused rather than partially credited, and the remainder under a whole period is credited back to the supporter, because keeping it would be a silent fee and a subscription realm is exactly where a silent fee must not be.

Earnings are credited at payment time, not streamed. The creator can withdraw the full price the instant it is paid, and a supporter who stops being active is not refunded. That is a deliberate v0 limitation: escrowed streaming, where the creator claims only what has elapsed and the supporter reclaims the rest, needs a claim schedule and a refund path, which is a larger realm rather than a flag on this one.

Both halves of what the realm owes, a creator's earnings and a supporter's change, land in one credit ledger and leave through Withdraw, which zeroes the credit before any coin moves. EarnedBy and CreditOf are deliberately different numbers: lifetime credited against withdrawable now.

Subscribe is payable and therefore has to be called directly by a user. A realm called by another realm cannot forward the envelope and maketx run cannot reach a payable function at all, so there is no path where another contract subscribes on somebody's behalf.

The token question

v0 ships none, and the condition for yes is written down in the engine's README: a creator coin is easy to mint and has no sink, because what a supporter would redeem it for is a promise made off chain. What would change the answer is a redeem the chain can enforce. The slot it would drop into is p/moul/x/social/coin, a GRC20 that refuses to exist until its mint rule, its sink and its buyer are declared.

Part of moul/gno-contracts — moul's versioned gno.land contracts. See the repository for the full catalog, build/test tooling, and usage.

On mainnet:

Dependency graph:

🧪 Highly experimental — potentially vibe-coded. Not audited; may break, change, or be removed at any time. Do not use with anything of value. Full disclaimer: DISCLAIMER.