LIVEUTC GOLD · XAU/USD POLYGON BLOCK AI ATTESTATIONS PROOFS ANCHORED recompute anything · no verification, no trust
Verification as a service · live today

Seal it. Anchor it.
Recompute it.

Send us a reading or a claim. We seal it at the source, anchor it on a public blockchain, and hand you a proof anyone can recompute — no trusted middleman, no certificate to take on faith.

No verification, no trust.

01 — what it is

One engine. Pointed at your claim.

The hard part of trust isn't storage — it's the first inch: getting an honest record onto a public ledger that anyone can re-check. We run that rail, live on Polygon today, and offer it as a service for physical readings and the claims made about them.

02 — what you get

A proof, not a promise.

Every job returns a recomputable record — a "passport." Anyone you share it with can re-hash the data and confirm it on-chain themselves. It carries an honest evidence label so no one mistakes a timestamp for a guarantee.

V·PASS
VPAY Proof Passport · Verification Rail
VPP
POLYGON · 137
Record / claim
Cocoa plot · provenance reading
Plot · serial
GH-AS-0427
Anchored · block
#88,856,515
Evidence class
SOURCE-VERIFIED
Stored on-chaincomputing…
Recomputed here— press verify —
recomputes to the same record
P<VPAYRECORD<<COCOA<PLOT<GH<AS<0427<<<<<<
DEFORESTATION<FREE<88856515<SRCVERIFIED<20260612<4

Every passport carries an honest evidence class:

self-attested — you supplied the record. Proves it existed, unaltered, since the seal.

source-verified — the record came from an authoritative source or our hardware. Proves origin too.

The block, hash and serial above recompute to the same passport on anyone's machine. We never present a self-attested seal as proof of ownership or correctness.

03 — how it works

Four steps. No middleman.

SEND

Your record

You send the reading or claim — a measurement, a plot, a carbon figure, a model output.

SEAL

We hash it

Canonicalised and hashed. From that moment it can be proven — never silently changed.

ANCHOR

On a public chain

The hash is anchored on Polygon — permanent, timestamped, openly checkable.

RECOMPUTE

Anyone verifies

You get a passport. Your buyer, auditor or regulator recomputes it themselves. Free.

04 — who it's for (now)

Where the buyer is already forced to prove.

We're starting where a mandate already exists, so the proof needs no selling:

Cocoa · EUDR

Plot provenance

Per-plot, recomputable, deforestation-free proof for exporters facing the Dec 2026 EU deadline.

Carbon

Bonded claims

Make a carbon claim challengeable and recomputable — accountability buyers can verify, not believe.

Gold & more

Any physical claim

Responsible-sourcing records today; full hardware-sealed assay as the GSU comes online.

Exporters & aggregatorsCarbon raters & registriesAuditorsCo-operativesResponsible-sourcing buyersAI / agent builders
05 — engagement

Start small. Prove it. Then scale.

Design pilot
Free
  • 1–2 partners
  • A defined set of records sealed & anchored
  • Recomputable passports
  • Supervised, hands-on
  • In exchange: a reference
Per-record
Pay as you seal
  • Per record sealed + anchored
  • Passport + recompute link
  • Evidence labelling
  • Best for episodic batches
Programme
Monthly
  • API / seat access
  • Volume sealing
  • Priority support
  • Best for ongoing compliance flows
Stated honestly: the seal → anchor → recompute engine is live on Polygon Mainnet today and you can verify it yourself. The physics-reader hardware (for source-verified physical assay) is pre-production. We are pre-revenue and claim no certifications, live pilots, or endorsements. A self-attested seal proves a record existed unaltered — it is not, on its own, proof of ownership or correctness.
06 — start

Bring us one claim.
We'll make it recomputable.

Tell us the record you need proven. We'll run a first one with you and you'll have a passport anyone can check.

or email Ano@ecoventafrica.com