> For the complete documentation index, see [llms.txt](https://docs.spacecoin.org/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.spacecoin.org/network/proof-of-orbit.md).

# Proof of Orbit

A verification mechanism unique to Spacecoin that confirms satellites are actually operating in space.

**Verification Methods**

**1. Satellite Observation (SatNOGS)** Through the open-source SatNOGS network, anyone can independently track and observe Spacecoin's satellites. No need to trust the Spacecoin project itself — a third-party network confirms the existence and operation of the satellites.

* [CTC-0](https://db.satnogs.org/satellite/VWXG-4101-0824-5480-8078)
* [CTC-1A](https://db.satnogs.org/satellite/OTUO-9494-3471-7180-4596)
* [CTC-1B](https://db.satnogs.org/satellite/CDDD-0280-4973-5946-8664)
* [CTC-1C](https://db.satnogs.org/satellite/IJQV-1195-2515-8742-0084)

**2. On-Chain Records (Creditcoin)** Transaction hashes of messages transmitted from space are published on the Creditcoin block explorer. Anyone can [audit these records on the blockchain](https://x.com/spacecoin/status/1989062848434348174?s=20), ensuring transparency of satellite operations.