Lock multipliers

Three lock terms, three weights. That is the entire choice a staker makes.

Lock	Contract constant	Multiplier	Gravity per 1,000 PLOUTO
7 days	`LOCK_7D`	`MULT_7D = 1.0e18`	1,000
30 days	`LOCK_30D`	`MULT_30D = 1.5e18`	1,500
90 days	`LOCK_90D`	`MULT_90D = 2.5e18`	2,500

Any other duration reverts with InvalidLock(duration). There is no custom term, no continuous curve and no maximum-lock escalation.

What the multiplier does and does not mean

Concretely: if you are the only staker, your multiplier is irrelevant — you receive 100% of distributions regardless. Multipliers only matter relative to everyone else's.

The non-linearity is deliberate

Note that the weights do not scale with time:

Lock	Days	Multiplier	Multiplier per day
7 days	7	1.0×	0.143
30 days	30	1.5×	0.050
90 days	90	2.5×	0.028

Per day of lock, the 7-day term is the most "efficient". The longer terms pay more in total weight but less per day committed.

This is intentional. A schedule that scaled linearly with time would make the shortest lock strictly dominant for anyone able to roll it repeatedly, and a schedule that scaled super-linearly would concentrate all weight in the longest lock. The chosen shape rewards commitment without making the short term pointless.

Rolling versus locking

A staker choosing 7 days and re-staking twelve times commits the same 84 days as one 90-day position, but:

Pays gas thirteen times instead of twice.
Holds 1.0× weight throughout instead of 2.5×.
Can exit at any of twelve maturity points.

That optionality is exactly what the longer multiplier is paying for. Whether it is worth it depends on how much you value being able to leave, which is a judgement no contract can make for you.

The denominator moves

Your share is yourGravity / totalGravity, and the denominator changes whenever anyone stakes or withdraws. A position opened when total Gravity is low may see its share fall substantially as others join.

The staking form previews your projected share, explicitly labelled "if opened now", because that is the only honest framing — it is a snapshot, not a forecast.

What is fixed at open

Both the multiplier and the resulting Gravity are fixed when the position is created. They do not decay toward maturity and do not grow with time held. A matured position keeps its full weight until it is withdrawn.

Choosing

There is no correct answer, and Plouto deliberately does not suggest one. Choose a lock sets out the trade-offs without recommending a term.