WEZA Build

Approval-to-payout
for construction.

Drawings, revisions, and milestone sign-off move directly into payout — on Solana devnet, with a permanent audit trail. Workflow stays off-chain. Payment proof happens on-chain.

Create an account Sign in

The real bottleneck

$299B

slow-payment cost to US construction, 2025

14%

hidden tax on project costs

82%

of contractors wait 30+ days past due

of subcontractors get paid on time

It isn’t banking. It’s workflow. Approvals sit in email and WhatsApp; the payment waits on paperwork that never lands. WEZA Build gives the approval a queue, a state machine, a certifier’s signature, and a one-click payout the moment the milestone is approved.

The loop

Contractor submits

Drawing or evidence package lands with a note, file, sha256 — and an audit row.

Certifier decides

Request revision, reject, or approve. Decisions are attached to the exact version they reviewed.

Owner pays out

One click moves devnet USDC with a memo tying the tx to project, milestone, submission, and approver.

Open the chain

This deploy runs a real Solana devnet treasury. The balance and address below are pulled live from our RPC — click through to Solana Explorer and verify the mint address, the ATA, and every payout signature we’ve ever broadcast.

Every payout is a TransferChecked paired with a Memo Program instruction. The memo carries project code, milestone number, submission id, and approver id, so any auditor can reconstruct which real-world approval caused the transfer.

Live devnet treasury

Checking…

USDC balance: —
SOL balance: —
Cluster: —
Treasury: —
USDC mint: —
Source: Circle devnet faucet

Why Solana

Every payout is a USDC TransferChecked with a Memo Program instruction carrying the off-chain context (project, milestone, submission, approver). Sub-cent fees, sub-second confirmation, readable on any Solana explorer.

Drawings and revisions stay off-chain in Supabase Storage — they don’t belong on a public ledger.

What it is not