Check a record

In use

In use at RackUnion.

RackUnion runs a market for used data center GPUs. Its listings carry a Voltry record. Click the badge to open one.

RackUnion

NVIDIA A100 80GB PCIe

Memory
80 GB HBM2e
A RackUnion listing tile. Click the Voltry record badge.

The record

The badge opens the record.

The same renderer the registry uses. Real reads from one A100.

The record opens here.

Voltry condition record

NVIDIA A100 80GB PCIe80 GB HBM2e

Repaired, stable

One memory row was swapped for a spare before our first read. Across five reads and 64 days, including one GPU reset, nothing has moved.

Damage ladder

  1. Bit flips fixed recorded
  2. Row swapped for a spare recorded
  3. Waiting for a reset not seen
  4. Data lost not seen
  5. Bank out of spares not seen

Memory banks

640 memory banks · every one still holds its full spare reserve

Identity

Serial
···7343
Built
Aug 2022
Board part
900-21001-0060-000
VBIOS
92.00.9A.00.01
InfoROM
1001.0242.00.01
Driver
580.126.09
Signed reads
5
First read
Aug 3, 2026
Last read
Oct 5, 2026
Span
64 days
Signed at capture · Provider withheld Read by Voltry reader 0.3.3

The buyer

The buyer checks it.

Every record has a check link. Anyone can open it. No account needed.

Sample check

Check

Signature valid. Anchored under the daily published root.

NVIDIA A100 80GB PCIe · ···7343 · Repaired, stable

Sample. Nothing is looked up on this page. Real record ids open on /verify.

The lender

What a lender relies on.

  • Signed at the moment of reading.

    Each read is signed the moment it is taken. Change one byte and the check fails.

  • Filed in an append-only registry.

    Records are added, never edited. A root of the registry is published every day, so a record can be checked against it.

  • Our fee never depends on what we find.

    The fee is set before the read. A clean card and a worn card cost the same.

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For marketplaces

Attach a record to a listing.

One line of HTML puts the badge on a listing. RackUnion uses the same line.

<a href="https://voltry.io/v/RECORD_ID"><img src="https://voltry.io/badge/record.svg" alt="Voltry record" width="168" height="40"></a>

RECORD_ID is the id printed on the record. The badge links to its check page.

Preview

Voltry record

See it on your own listings.

We open the guided demo with you: the registry, the badge and the check, on a call.

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