Platform · Independent Verification
Trust Is Built Before an Asset Is Tokenized
Verification workflow, independent inspection/testing, certificate/document validation, sampling methodology where applicable, third-party laboratories, valuation review, chain of evidence, reverification, and verification-status display.
Trust Is Built Before an Asset Is Tokenized
A non-negotiable verification architecture enforcing zero self-certification. Every industrial asset must undergo independent physical sampling, accredited ISO/IEC 17025 laboratory spectrometry, and cryptographic chain-of-evidence sealing before digital issuance.
Zero Self-Certification
Absolute assayer independenceISO/IEC 17025
Accredited testing bodies onlyICP-MS Spectrometry
Elemental trace to parts-per-billionMerkle Chained Roots
Unalterable proof integrityFrom Raw Smelter Manifest to Cryptographic Digital Passport
Every metal lot advances linearly through five mandatory verification gates before on-chain issuance is unlocked.
Origin Ingestion
OECD CAHRA sanctions vetting & smelter batch origin manifest matching under customs escort.
Dual Sampling
Sworn lab technicians extract randomized core shavings under dual-witness vault custody protocol.
Lab Spectrometry
ISO/IEC 17025 ICP-MS 17-element trace assay confirming purity floor (>=99.99% Cu).
Mark-to-Market
LME/CME official cash settlement pricing fixing + documented physical form premium matrix.
Passport Sealing
W3C Digital Asset Passport minted with SHA-256 Merkle root binding all inspection artifacts.
End-to-End Verification Workflow
5-stage sequential physical-to-digital validation enforcing the zero self-certification mandate.
Operational Protocol Scope
- Stage 1 (Origin Ingestion): Refiner manifest vetting, OECD CAHRA conflict-free check, and bonded transport escort
- Stage 2 (Dual-Witness Sampling): Independent sworn laboratory technicians extract representative core samples
- Stage 3 (Multi-Element Assay): Comprehensive ICP-MS spectrometry analysis measuring purity down to ppm/ppb
- Stage 4 (Valuation & Notarization): Mark-to-market pricing fixing against LME spot settlement and document hashing
- Stage 5 (Passport Sealing): W3C Digital Asset Passport minted and cryptographically linked to vault warrants
Analytical Specifications
ReserveChain Operational Verification Protocol v2.4 / ISO 9001 Alignment
Sequential multi-institutional gatekeeper workflow with mandatory cryptographic signing
100% of lots undergo physical inspection and spectral verification prior to digital registration
State machine transitions recorded in immutable PostgreSQL datastore and on-chain event logs
Invariants & Circuit Breakers
- Zero Self-Certification Invariant: Neither ReserveChain nor asset owners may test or certify their own inventory
- Linear Dependency Invariant: No token unit may be minted without completed, notarized assayer sign-off
Every stage requires independent professional liability and certified laboratory warranting.
Immediate intake cancellation if any step in the 5-stage workflow fails validation or documentation checks.
Authority & Accreditations
ReserveChain Verification Desk & Independent Accredited Laboratories
- ISO/IEC 17025 Accredited Testing Laboratories
- LME Listed Assayers Guild
ALS Global, Alex Stewart International, IGAS Research, SGS Minerals
Workflow Stage Transition & Verification State Log
{
"workflowId": "WF-VERIF-2026-CU-09418",
"assetLot": "BATCH-CU-2026-ZH-04821",
"currentStage": "STAGE_05_PASSPORT_SEALED",
"stagesCompleted": [
{ "stage": 1, "name": "Origin Ingestion", "status": "CLEARED_OECD" },
{ "stage": 2, "name": "Dual-Witness Sampling", "status": "COMPLETED_ISO12743" },
{ "stage": 3, "name": "Multi-Element Assay", "status": "PASSED_99.9935_PCT" },
{ "stage": 4, "name": "Valuation & Notarization", "status": "LME_FIXED_USD" },
{ "stage": 5, "name": "Passport Sealing", "status": "MERKLE_ROOT_COMMITTED" }
],
"verificationConclusion": "APPROVED_FOR_TOKEN_ISSUANCE"
}Independent Verification Matrix
Complete inventory of the 9 accredited verification domains protecting asset integrity.
| Tag & Domain | Category | Testing Standard | Core Invariant Guarantee | Action |
|---|---|---|---|---|
VERIF-01End-to-End Verification Workflow | Testing & Methodology | ReserveChain Operational Verification Protocol v2.4 / ISO 9001 Alignment | Zero Self-Certification Invariant: Neither ReserveChain nor asset owners may test or certify their own inventory | |
VERIF-02Independent Inspection & Chemical Testing | Testing & Methodology | ASTM B115 (Electrolytic Copper Cathode) / ISO 11885 / LME Grade A Specification | Elemental Threshold Invariant: Material purity must strictly equal or exceed published specification floor | |
VERIF-03Certificate & Document Validation | Validation & Evidence | W3C Verifiable Credentials / ISO 17050 Conformity Assessment / GS1 EPCIS Documentation Standards | Document Authenticity Invariant: Assay reports must verify against pre-registered laboratory public key pairs | |
VERIF-04Standardized Sampling Methodology | Testing & Methodology | ISO 12743 (Copper, lead, zinc concentrates - Sampling procedures) / ASTM E255 Core Sampling | Dual-Witness Invariant: Sampling is invalid without counter-signatures from both the assayer and vault custody officer | |
VERIF-05Third-Party Laboratory Network | Validation & Evidence | ISO/IEC 17025:2017 / ILAC MRA International Laboratory Mutual Recognition Arrangement | Independence Invariant: Testing laboratories have zero equity, commercial, or credit relationship with asset owners | |
VERIF-06Independent Valuation Review & Mark-to-Market | Validation & Evidence | FINMA-Supervised Commodity Benchmark Principles / LME Official Cash Settlement Pricing Data License | Objective Pricing Invariant: Valuations are derived exclusively from liquid, audited market settlement data | |
VERIF-07Chain of Custody & Evidence Sealing | Validation & Evidence | ISO 28000 Security Management for Supply Chain / W3C Verifiable Credentials Data Model v1.1 | Provenance Completeness Invariant: No pallet accepted without documented origin smelting batch and transit bill of lading | |
VERIF-08Periodic Reverification & Seal Monitoring | Governance & Status | ISAE 3000 International Standard on Assurance Engagements / Swiss Notarial Inspection Standards | Continuous Authenticity Invariant: Material validity is continuously monitored, not just checked once at intake | |
VERIF-09Verification-Status Engine & Explorer Display | Governance & Status | W3C Verifiable Presentation Specification / OpenAPI 3.1 Public Telemetry Endpoints | Public Auditability Invariant: Anyone in the world can verify the physical backing and laboratory credentials of any token |
Zero Self-Certification Mandate
ReserveChain and asset owners are contractually and architecturally barred from testing or certifying their own inventory. Only independent ISO/IEC 17025 accredited laboratories possess assay authority.
Sworn Assayer Liability
Every assay report carries statutory legal enforceability backed by sworn assayer civil liability and $25M+ professional indemnity coverage, eliminating paper claims and fraudulent grading.
Continuous Reverification
Material authenticity is verified not once, but continuously through unannounced quarterly fiduciary inspections, random sample re-assaying, and mandatory pre-redemption physical checks.
Explore Related Technical & Custodial Pillars
Drill deeper into physical custody protocols, cryptographic passports, and continuous proof of reserves.