Hourglass

· Hourglass / A precision instrument for on-chain time

Time, distilled
into payment.

Stream SEP-41 tokens to a recipient on a precise schedule. Vest, pay, grant — by the second. No off-chain assumptions, no oracles in the hot path, no protocol fee on the streamed asset.

Testnet livestellar.expert

Principles

Three axioms,
no exceptions.

01

Precision

Every second of a vesting schedule is verifiable on-chain. Cliffs, lump-sum unlocks, and linear streaming are computed deterministically — no off-chain assumptions, no oracles in the hot path.

02

Permissionless

No protocol fee on the streamed asset. Streams are NFT receipts: transferable, cancellable until renounced, and withdrawable at any moment by the recipient.

03

Stellar-native

Built on Soroban with SEP-41 tokens. XLM, USDC, EURC — the same interface and the same predictability. Cheap, fast, final.


Specification

Surface area,
in full.

A primitive should be legible at a glance. The whole shape of the system fits on one card.

Network

Stellar / Soroban
L1

Token standard

SEP-41
fungible

Stream shapes

Linear · Tranched
2

Receipt

NFT (ERC-721 equivalent)
transferable

Fee on stream

0.00%
permissionless

License

Apache-2.0
OSS

An open-source primitive for predictable on-chain settlement.