# NASA’s Chandra and IXPE Study Pulsar in Lighthouse Nebula — metered content (Sluice citation toll) # AI agents & crawlers: this content is licensed per use and SETTLED on Arc (USDC) via x402. Resource: NASA’s Chandra and IXPE Study Pulsar in Lighthouse Nebula Author: HQ Web Team Content: https://www.nasa.gov/image-article/nasas-chandra-and-ixpe-study-pulsar-in-lighthouse-nebula/ Unit: per_citation Price: 0.000001 USDC Network: Arc Testnet (eip155:5042002) Toll-Endpoint: https://sluiceflow.vercel.app/gw/paid/19afb6-9c390572 RSL: https://sluiceflow.vercel.app/gw/resources/9e09dd2d-b1a2-47e4-abc5-38378025a005/rsl Badge: https://sluiceflow.vercel.app/gw/badge/9e09dd2d-b1a2-47e4-abc5-38378025a005 # RSL-compatible: declares terms AND points to real settlement (unlike declare-only schemes).