tokens&
BrowseFor enterprises
tokens&

Find tools, check provider offers, save a build plan, and share your work when you’re ready.

For buildersFor enterprises

For builders

  • Product launches
  • Builder projects
  • Startup credits and perks
  • Agent Skills
  • Published agents
  • API and agent docs
  • Publish a project

For enterprises

  • Start free company workspace
  • Submit a tool, product, or perk

Community

  • Community
  • Newsletter
  • Events
Xin

© 2026 tokensand, LLC. All rights reserved.

  • Terms
  • Privacy
  • Security
  • Data Processing
  • Status
  1. Hackathon
  2. Project gallery
  3. BLACKBOX
Kevin Chenabout 1 month agoContributorJudging locked: Event build

BLACKBOX

A robot-fleet black box that replays a drive in Rerun with tracks, closeness, time to contact, and Cosmos event times.

Community votes recognize the build and do not affect official judging.

Builder

Kevin Chen

Builder on tokens&

Review the project

Start with the source code, then open the demo or video if available.

View GitHub repository
Visit project websiteWatch demo videoProject gallery
Demo video
Watch demo video
Project description
BLACKBOX is a fleet black box on the VAST video stack. After a close call, the camera, the objects, the distance, and the model's read are on one clock. The App button opens this page. The Rerun viewer plays Toronto AV drive 01, 13:25–14:00. That recording holds each clip as video, YOLO tracks and one-second trails, in-path proximity for people, bicycles, and vehicles, a time-to-contact lane, and Cosmos3-Reason event lines on the risk-2 clips. On the 13:55 clip the ego car is slowing on a narrow street. The recording has 65 tracks. A bicycle in the centre path reaches proximity 0.84. The shortest time to contact is 1.8 seconds, on a car. Cosmos times a pedestrian in the path at 13:55, 13:56, 13:58, and 13:59. The stored caption says cyclist. We did not build the video stack. VAST stores the clips and the index. Cosmos captions each five-second segment. YOLO writes the boxes. Rerun supplies the viewer. We added the episode view, the exporter, the tracks, proximity, time to contact, and the Cosmos timing pass. Risk and event names on 13:55 are still inferred. Re-ingest has replaced 2 of 6 clips on each of the two parent chunks, and 13:55 still has the old caption.
Project links
  • GitHub repository
  • Project website
  • Demo video
Tools used
  • VAST Data logoVAST Data

    Provider website

    Sign in to visit
  • SpaceXAI (Cursor) logoSpaceXAI (Cursor)

    Event resource · Sign up for Cursor

    Sign in to visit
  • CoreWeave (Weights & Biases) logoCoreWeave (Weights & Biases)

    Event resource · Create a Weights & Biases account

    Sign in to visit
  • NVIDIA logoNVIDIA

    Provider website

    Sign in to visit