01
Structure the contract
The parties agree a set of tranches up front: what fraction of the contract value is released, on what condition, and which party or authority is entitled to attest that the condition has been met.
Conditional settlement infrastructure
Release payment when the evidence arrives, not when someone remembers to approve it.
Sendy Wave Bond is a software model for splitting a commercial contract into milestone tranches and releasing each one only when the agreed documentary evidence has been submitted and verified by the parties who are supposed to produce it.
Architecture preview. Sendy-Wave is designed purely as an orchestration layer to integrate with licensed financial institutions. Review our status and technical roadmap.
The problem
Cross-border trade payment fails in the gap between performance and trust
A buyer will not pay before shipment. A supplier will not ship before payment. The instruments that bridge that gap — letters of credit, escrow agents, performance bonds — work, but they are slow, manually reviewed, and priced for large counterparties. Mid-market trade is left choosing between prepayment risk and non-payment risk.
02
Collect attestations
Inspectors, carriers, customs brokers and consignees submit signed evidence against a specific milestone. The system records who attested, to what, and when, and makes that record visible to both sides.
03
Instruct settlement
When a milestone's conditions are satisfied and no party has raised a hold, the system emits a settlement instruction to a licensed partner institution. The money itself never touches this software.
Interactive model
Walk a contract through the state machine
This is a working model of the release logic, running entirely in your browser. It uses invented figures for a fictional shipment so you can see how the state transitions behave. It is not connected to a backend, a bank, or a payment network.
Contract value
$500,000.00
Still conditional
$500,000.00
Released
$0.00
Current milestone
1 of 3
-
Tranche 01
30% on loading
Clean bill of lading issued and marine inspection report filed at port of departure.
Attesting party: appointed surveyor
$150,000.00
Awaiting evidence -
Tranche 02
40% on clearance
Import entry accepted and goods released by the destination customs authority.
Attesting party: customs broker of record
$200,000.00
Not yet open -
Tranche 03
30% on receipt
Consignee confirms delivery at destination warehouse without recorded exception.
Attesting party: named consignee
$150,000.00
Not yet open
Client-side only
Event log
00:00:01
Contract DEMO-2026-084 structured into 3 tranches (500,000.00 USD).
00:00:02
Milestone 1 open. Awaiting attestation from appointed surveyor.
Design principles
Architectural foundations
We do not hold the money
Holding client funds means becoming a regulated custodian. Funds stay with a licensed partner institution; this software only produces cryptographic settlement instructions that the institution evaluates and executes.
We do not judge performance
The system does not decide whether goods are satisfactory. It records whether a nominated party attested to a nominated fact. Substantive disputes belong to the contract's own dispute mechanism, not to an algorithm.
We do not assume the evidence is true
A verified document is proof of authorship and integrity, not of physical reality. The design treats attestation as an accountability trail rather than as ground truth — this limitation is discussed in detail.
Transparent engineering
We do not announce commercial readiness prematurely. Our status page provides an accurate, real-time inventory of completed design milestones, ongoing research, and open development requirements.