Legal information

Operator and contact information for Cairn.

Operator

Contact

• Generaljumpbox@jumpbox.tech
• Privacy / delistingjumpbox@jumpbox.tech
• Abuse / securityjumpbox@jumpbox.tech
• DMCAjumpbox@jumpbox.tech (see Terms §7)

Service infrastructure

For transparency, Cairn is composed of three independent components hosted with the providers below. Each provider has their own privacy policy and security posture; we link them here so you can audit the full stack.

• Web frontend
  cairn.jumpbox.tech — hosted on Vercel (United States)
• Public API
  marker.jumpbox.tech — Cloudflare Workers (globally distributed edge)
• Database
  Supabase Postgres (United States region)

Open-source dependencies

Cairn is built on top of public infrastructure. Notable upstream protocols and references:

• ERC-8004 — agent identity NFT standard
• Farcaster — verified-address source-of-truth
• Blockscout — chain indexing + OLI tag source
• x402 + x402scan — settlement protocol + facilitator allowlist source

Security disclosure

If you discover a security vulnerability, please email jumpbox@jumpbox.tech with details. We will acknowledge within 72 hours and work in good faith to resolve. We do not currently run a paid bug-bounty program but appreciate the report.

Built by

Jumpbox — sole proprietor, Idaho, USA. Other Jumpbox products: Agora (x402 launchpad), Conduit, stx-agent (Stacks agent protocol), x40clue.

See also: Privacy Policy · Terms of Service