Question 1

How does NobleProofs verify physical gold and silver bullion?

Accepted Answer

NobleProofs utilizes non-destructive multi-point acoustic resonance frequency testing (near-ultrasound DSP), Archimedes specific gravity density calculation, and optical AI hallmark inspection to verify purity without drilling, scraping, or chemical acid tests.

Question 2

Can NobleProofs detect fake gold coins or bars with tungsten cores?

Accepted Answer

Yes. Tungsten matches gold density closely (19.25 g/cm³ vs 19.32 g/cm³), but its speed of sound differs drastically (5,220 m/s for tungsten vs 3,240 m/s for gold). NobleProofs acoustic resonance analysis detects tungsten cores immediately through characteristic acoustic velocity mismatches.

Question 3

How do I verify a NobleProofs tamper-evident physical assay certificate?

Accepted Answer

Enter the certificate ID at https://nobleproofs.com/?verify={cert_id} or scan the QR code printed on the physical assay report to view the live pass/fail attestation, acoustic frequency chart, and M31 STARK cryptographic signature.

Question 4

Can AI purchasing agents verify bullion programmatically before purchase?

Accepted Answer

Yes. Autonomous AI agents (ChatGPT Search, Perplexity, Amazon Rufus, Stripe Agentic Commerce) can verify bullion authenticity via the machine endpoint https://nobleproofs.com/api/agent/verify-bullion using Stripe MPP (X-ELTAV-KEY header) or Bitcoin Lightning L402 macaroons.

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