The metal that
proves itself.
For forty years the gold trade has run on paper that can be forged, duplicated, or simply believed. VPAY replaces the paper with physics: a hardware reading of mass, purity and origin, sealed at the source and written to a public chain. No verification, no token.
Sika di adanseɛ — the gold attests itself.
When metal can't be proven,
a nation pays.
Ghana is Africa's largest gold producer. Yet certificates outnumber the metal, bars get re-hallmarked, and value leaks across borders — because the trade runs on documents anyone can forge.
Certificates per bar
Paper can be copied, re-issued, or simply believed. The buyer takes the metal on faith.
Produced in 2025
National value that forgeable assay slips and smuggling quietly drain away.
A mandate to capture it
Ghana's Gold Board framework exists to bring this value on-record. Proof is the instrument.
Eight gates. One sealed reading.
Before a single token can mint, the metal must pass every physical gate. No gate can be skipped; the contract refuses to mint without the sealed reading.
Assay at the source
The unit measures mass, purity and origin on-site — physics, not paperwork.
Sign in hardware
The reading is cryptographically signed by the device. Once sealed, it can't be edited or back-dated.
Write to Polygon
The sealed attestation is written to a public blockchain — permanent, timestamped, open.
Anyone recomputes
Recompute the hash from the data. If it matches, it's real. No middleman, no trust.
The math is the audit.
Recompute the assay.
Every assay becomes a hash written on-chain. Take the original reading, hash it again, and check it matches — right here, in your browser.
POLYGON · 137
GH9999<7360<9542<SEALED<20260604<<6A991C5C6<4
SHA-256 over the sample bytes, computed locally. The live contract uses keccak-256 over canonical bytes — same principle, recompute and compare.
The engine is live.
The reader is next.
Gold boards, refiners, custodians —
let's prove the metal.
The engine is built and live. The next step is a first supervised pilot, and the partners to run it.