Xync Network - Blockchain ID Specification

CAIP-2

For context, see the CAIP-2 specification.

Introduction

Xync Network is a payments-only Layer-1 blockchain. Networks in the “xync” namespace are identified by a short human-readable network name declared in the network’s genesis file (chain_id). The genesis file is canonical and content-addressed: its SHA-256 hash is co-signed by the validator quorum in every checkpoint, so a reference resolves unambiguously to one genesis.

Specification

Semantics

The reference is the chain_id field of the network’s genesis file: main for the production network, test-N / dev-N for test and development networks. The reference intentionally excludes the namespace name (no xync- prefix) to avoid stutter.

Syntax

chain_id:    namespace + ":" + reference
namespace:   xync
reference:   [-_a-zA-Z0-9]{1,32}

Resolution Mechanics

Query any validator’s public API:

// GET https://<node>/status
{
  "chain": "main",
  "caip2": "xync:main",
  "genesis_sha256": "9f2c…",   // co-signed by the checkpoint quorum
  ...
}

A client validates that caip2 matches the expected identifier and MAY verify genesis_sha256 against the published genesis file and the latest checkpoint signatures (2f+1 of the validator set).

Rationale

Named references (like hedera:mainnet) rather than genesis-hash references (like solana): the genesis hash is still verifiable via resolution, while the identifier stays short and human-readable — consistent with the network’s compact-identifier design philosophy (a whole transaction is 128 bits). Network names are unique within the namespace and assigned by namespace governance.

Backwards Compatibility

Not applicable (the namespace launches with this specification).

Test Cases

# Xync mainnet
xync:main

# Xync development network
xync:dev-1

References

• Xync Network Yellow Paper - protocol specification (network model, genesis, checkpoints)
• XyncPay - the live payment product on the network

Copyright

Copyright and related rights waived via CC0.

Citation

Please cite this document as:

Xync Network, "namespaces/xync-caip2: Xync Network - Blockchain ID Specification [DRAFT]," Chain Agnostic Namespaces, xync-caip2, July 2026 / . [Online serial]. Available: https://github.com/ChainAgnostic/namespaces/xync-caip2.md