CAIP-28: Blockchain Reference for Stellar Namespace Source

Author Gleb Pitsevich
Status Superseded
Type Standard
Created 2021-02-17
Requires 2
Superseded By

Simple Summary

This CAIP defines the Stellar network namespace and reference for CAIP-2.


In CAIP-2 a general blockchain identification scheme is defined. This is the implementation of CAIP-2 for the Stellar network.


See CAIP-2.


Stellar Namespace

The namespace “stellar” refers to the wider Stellar ecosystem.

Reference Definition

The reference relies on Stellar’s current designation of addresses belonging to test or main networks by prefixing them with testnet or pubnet correspondingly.

Reference could only be populated with testnet or pubnet symbols.

Each Stellar network has its own unique passphrase, which is used when validating signatures on a given transaction.

The current passphrases for the Stellar pubnet and testnet are:

  • Pubnet: ‘Public Global Stellar Network ; September 2015’
  • Testnet: ‘Test SDF Network ; September 2015’

Resolution Method

To resolve a blockchain reference for the Stellar namespace, make a REST GET request to the Stellar Horizon node with endpoint / or REST GET request to the Stellar Core node with endpoint /info, for example:

// Request
curl -X GET "" -H "accept: application/json"

// Response
  "_links": {"...": "..."},
  "horizon_version": "2.0.0-rc-89ef5f86ac784d35e29845496e8e1bceac31298a",
  "core_version": "stellar-core 15.2.0 (54b03f755ae5d5aa12a799c8f1ee4d87fc9d1a1d)",
  "ingest_latest_ledger": 34073932,
  "history_latest_ledger": 34073932,
  "history_latest_ledger_closed_at": "2021-02-19T15:50:02Z",
  "history_elder_ledger": 2,
  "core_latest_ledger": 34073932,
  "network_passphrase": "Public Global Stellar Network ; September 2015",
  "current_protocol_version": 15,
  "core_supported_protocol_version": 15

The response will return a JSON object which will include network information.

The blockchain reference can be retrieved from network_passphrase response of Horizon or from network response of Stellar Core.


Blockchains in the “stellar” namespace are two Stellar public networks - pubnet and testnet.

Backwards Compatibility

Not applicable

Test Cases

This is a list of manually composed examples

# Testnet (Test SDF Network ; September 2015)

# Pubnet (Public Global Stellar Network ; September 2015)

Copyright and related rights waived via CC0.


Please cite this document as:

Gleb Pitsevich, "CAIP-28: Blockchain Reference for Stellar Namespace," Chain Agnostic Improvement Proposals, no. 28, February 2021. [Online serial]. Available: