Same load.
Two numbers.
The buyer owns the scale and makes the grading call. The seller usually cannot check either one. Below is a single 34-ton load of prime busheling, settled twice — once on a dealer's ticket, once on a receipt whose every line has a stated basis.
- Scale not named
- Calibration not referenced
- No evidence attached
- Rice Lake SURVIVOR OTR · NTEP 09-042A7
- Calibrated 2026-06-18 · legal for trade
- Weighmaster A. Reyes · TN-WM-20418 · 5 evidence items
At 402 $/GT. A yard running four trucks a day is settling this argument, or not settling it, roughly a thousand times a year.
Price runs in both directions
Metal is priced by weight. Trucking is priced by trip. A roll-off of ductwork and ceiling grid fills by volume long before it fills by weight, so three pulls swallow the metal value whole.
Every other marketplace treats that load as unlistable. It is not unlistable — it is a removal job, with a contractor on a handover deadline willing to pay for it.
EPA put 670,495 tons of construction metal into landfill in 2015, at a tipping fee, on material worth $140–260 a ton. Nothing prices a negative load, so it gets buried instead.
Live figures from the demonstration board — the same clearing function the marketplace uses, not hand-written examples.
Three parties on one load
Existing marketplaces match a buyer to a seller and leave the truck as someone else's problem. Freight is 10–30% of delivered cost, so leaving it out means leaving out the part that decides whether the deal happens at all.
- GeneratorFab shops · stamping plants · service centers · demolition contractors
- A cleared site and a number they can trust
- Settles on the buyer's scale ticket and the buyer's grade call. Scrap is pure recovery on a cost centre, so every dollar of leakage is 100% of the margin.
- HaulerRoll-off · grapple · flatbed · box truck
- Loaded miles and payment that does not need chasing
- Deadheads to sites that turn out to be inaccessible, hauls material nobody will take, gets paid last.
- YardFeeder yards · regional processors · shredders
- Consistent tonnage at a known grade
- Working capital locked in inventory bought today and sold weeks later at an unknown price, plus a reputational cost on every disputed ticket.
A receipt a stranger can check
Every custody event commits to the digest of the one before it. Edit the gross weight after the fact and that entry fails, and so does every entry after it, and the head no longer matches the one the other two parties are holding.
The verifier recomputes the whole chain in your browser. There is a button on it that tampers with the weight on purpose, so you can watch it break rather than take our word for it.
What it does not prove: that the scale was honest, that the grade was right, or that the photographs show this load. That is what the legal-for-trade credential and the evidence package are for — and why the trust tier grades the measurement, not the hash.
- 08weighed gross76,420 lb on NTEP 09-042A7
- 09weighed tare31,900 lb, empty trailer re-weighed same deck
- 10graded#1 busheling confirmed, residual Cu 0.04%
- 11certifiedWeighmaster A. Reyes · trust tier A
46 loads on the board, 41 metros
Demonstration data on a working prototype. Post a load and watch the arithmetic decide whether you are selling scrap or buying a cleared site.