Property Construction Route
What this route does.
This route turns construction payments into evidence-gated draws.
Money sits in escrow on-chain as EDUSD 1:1 (fully reserved). The payer (owner/financier) can pre-assign that EDUSD to GC, subcontractors, and merchants so everyone sees their allocation, but no one can cash out until the stage is verified and an EMT (Event/Milestone Token) is issued.
No EMT, no funds. Result: predictable cash flow for the site, lien-waiver discipline, clean retainage, instant settlement on proof, and a live audit trail.
How it works
Owner / Financier (5 steps)
Funding SLA: each upcoming stage must have locked EDUSD ≥ 24h before its EMT window. If not, the EMT becomes Pending Funds and penalties (per MPA) accrue until funded; unaffected stages may still complete.
GC / Subcontractors (4 steps)
How PoV(Proof of Verification) works
Before any payout the contract checks all three:
Attestor quorum present (independent roles; live keys)
Equality of evidence (all attestations point to the same evidence hash)
One-claim exclusivity (each stage can finalize once network-wide)
If a counted attestation is revoked, payouts freeze (<24h); corrected attestations mint EMT-R and payouts resume.
Milestones & PoV
A typical stage (e.g., Foundation / Structure / Enclosure / MEP / Inspections / Commissioning):
Capture (minimum evidence).
ProgressCert.v1 (
scope, % complete, geo-time photo set, drawing refs, certifier ID),Inspection.v1 (
code stage passed),SOVSnapshot.v1 (
lines and amounts),ChangeOrder.v1 (
if budget/scope changed).Verify (quorum).
ENGINEER OF RECORD / CLERK OF WORKS(progress),BANK QS / INDEPENDENT COST CONSULTANT(quantities/cost),MUNICIPAL INSPECTOR(when stage-gated).Gate (code). quorum · same evidence hash · one-claim exclusivity.
Payout on EMT. Assigned locked EDUSD to GC/subs/merchants auto-pays by SOV line. Retainage (R%) is withheld automatically. Lien waivers are required to unlock the next draw.
Special milestones
Substantial Completion (SC EMT). Releases the SC retainage portion when Engineer/QS/Inspector attest SC evidence (including CofO if required).
Final Completion (FC EMT). Releases final retainage when punchlist closed and unconditional waivers are posted.
Money flow — simple and safe
What EDUSD is. A minted stable coin, always 1:1 backed by segregated client-money accounts. Issuer/treasurer = regulated escrow trust/PSP; EDMA = tech/program manager. Only whitelisted wallets can hold EDUSD.
Pre-assign immediately. As soon as EDUSD is locked, the payer pre-assigns slices to GC, subs, merchants by SOV line. Everyone sees their line item day one; no one can cash out yet.
Auto-settle on EMT. When the relevant EMT mints, assigned locked EDUSD auto-converts to spendable and pays that party (or burns & redeems 1:1 to bank rails T+0/T+1). Retainage stays locked until the SC/FC EMT.
Pending Funds. If a stage isn’t pre-funded ≥24h pre-EMT, the EMT is Pending Funds; late interest accrues to beneficiaries until funded (per MPA).
Proof-of-Reserves. Posted on-chain T+0 per funding + daily roll-up.
Vendor/Merchant spend (inside EDMA). EDUSD can also pay authorized merchants (freight, testing, warehousing, materials). Merchant settlements are screened and either held, offset against receivables, or burn & redeem 1:1 to fiat under SLA.
Fees
Per draw: 0.35% of the released amount
Caps per draw: $7.5k (≤ $1m), $20k ($1–5m), $40k (> $5m)
Project cap: 0.90% of facility or $300k (lower prevails)
Who pays: the recipient of the draw (GC/SPV) in $EDM; 50% of each fee burns
Paymaster (optional): lender can sponsor EDM fees (auto top-up with a spend ceiling) so releases never fail for fee shortfall
Examples
Example 1 — Mid-size project with retainage
Facility: $50m · Draws: 10 × $5m · Retainage: 5%
Before Draw 1: fund $5m → EDUSD 1:1. Pre-assign: GC $3.2m, Sub A $1.1m, Sub B $550k, Merchants $150k (all locked).
EMT-Structure: PoV passes → $5m pays less retainage (5% withheld across lines).
– Fee 0.35% × $5m = $17,500 in $EDM (burn $8,750).
Later: SC EMT releases half of retainage; FC EMT releases the rest (after unconditional waivers).
Totals: 10 draws → $175k fees; $87.5k burned (under $300k project cap).
Example 2 — Small draw with Change Order & Pending Funds
Draw: $750k · CO: +$50k to electrical SOV line
Fund $750k → EDUSD; CO EMT records the budget increase.
EMT-MEP: PoV passes; payout = SOV lines including CO; fee $2,625 (burn $1,312.50).
If lender missed the top-up window: stage mints Pending Funds; interest accrues to payees until funded, then auto-settles.
What you need to prepare
Owner / Financier
MPA signed
Draw schedule + SOV + retainage %
Escrow funded → EDUSD 1:1
Pre-assign lines (GC, subs, merchants)
Next draw locked ≥ 24h pre-EMT
$EDM fee gauge green (or Paymaster ON)
KYC/KYB complete.
GC / Subs
Scope by SOV line
ProgressCert (scope/%/photos)
Inspection docs (if required)
Lien waivers (conditional at payout, unconditional within T+X)
Change Order packs (if any).
Engineer / QS / Inspector
Timely attestations; revocation response < 24h (EMT-R).
Why this is better
Cash when work is proven. No waiting on manual approvals or email threads.
Everyone sees the money. EDUSD shows who will be paid and how much—from day one.
Lien-waiver & retainage discipline. Block the next draw until waivers post; release retainage at SC/FC, automatically.
Low friction, high trust. Fees are small, predictable, and half are burned; PoV blocks the failure modes that cause disputes.
Audit-ready. Every draw is time-stamped, attested, and exportable.
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