Tenzro Namespace - Asset

Author Tenzro Engineering (eng@tenzro.com)
Discussions-To https://github.com/ChainAgnostic/namespaces/pull/184
Status Draft
Type Standard
Created 2026-05-02
Updated 2026-05-02
Requires CAIP-2, CAIP-10, CAIP-19

Table of Contents

CAIP-19

For context, see the CAIP-19 specification.

Rationale

Tenzro hosts assets across three VM façades (EVM, SVM, Canton/DAML) that all share a single underlying native balance — the Sei-V2-style pointer model. For CAIP-19 purposes, an asset is identified by its canonical Tenzro token ID (a 32-byte SHA-256 of creator || nonce) regardless of which VM façade a client uses to interact with it. The same TNZO holding is reachable as wTNZO (ERC-20) on the EVM façade, as a wTNZO SPL token on the SVM façade, and as a CIP-56 holding on the Canton façade — but the CAIP-19 reference is one and the same.

Two asset namespaces are defined:

asset_namespace Meaning
slip44 TNZO native coin — uses the SLIP-44 coin index
token Fungible token registered in Tenzro’s unified token registry, identified by 32-byte token ID
nft Non-fungible token, identified by <collection_id>/<token_id> where collection_id is the 32-byte collection ID

The native TNZO coin uses SLIP-44 coin type 1414421071 (0xd44e5a4f), registered via satoshilabs/slips#2015. Until that PR is merged, implementations MAY also accept the literal reference tenzro under slip44 (vendor-prefixed pre-registration form) for forward compatibility.

Syntax

After the CAIP-2 chain prefix, a slash defines an asset_namespace and an asset_reference:

asset_id := chain_id "/" asset_namespace ":" asset_reference [ "/" token_id ]
  • chain_id: CAIP-2 identifier (see caip2.md)
  • asset_namespace: slip44 token nft
  • asset_reference:
    • For slip44: SLIP-44 coin index 1414421071 (decimal); the pre-registration string tenzro MAY also be accepted on input until the upstream PR merges
    • For token: 64-character lowercase hex of the 32-byte token ID
    • For nft: 64-character lowercase hex of the 32-byte collection ID
  • token_id (NFT only): 64-character lowercase hex of the 32-byte mintRandom-derived token ID, or a decimal integer for sequentially minted tokens

Examples 

# Tenzro Testnet — native TNZO coin (registered SLIP-44 index)
tenzro:92bd27db9713293097f0e63476e3911e/slip44:1414421071

# Tenzro Testnet — native TNZO coin (pre-registration form, accepted until slips#2015 merges)
tenzro:92bd27db9713293097f0e63476e3911e/slip44:tenzro

# Tenzro Testnet — fungible token (e.g. an ERC-20 deployed via TOKEN_FACTORY)
tenzro:92bd27db9713293097f0e63476e3911e/token:7a4bcb13a6b2b384c284b5caa6e5ef3126527f93000000000000000000000000

# Tenzro Testnet — NFT (collection_id / token_id)
tenzro:92bd27db9713293097f0e63476e3911e/nft:a1b2c3d4e5f6...64hex.../42

Cross-VM identity

The same asset identifier MUST resolve to the same underlying balance regardless of which VM façade a client queries. For example, given a TNZO balance for an account A:

  • eth_getBalance(A) on the EVM façade
  • tenzro_getTokenBalance({owner: A, token: <wtnzo_evm_addr>}) on the Tenzro-native API
  • An SPL token-account query against the SVM tenzro_cross_vm program for wTNZO

…all return the same numeric value (in 18-decimal precision; SPL truncates to 9 decimals at the boundary). The CAIP-19 identifier is the cross-VM canonical name; the per-VM contract addresses are aliases.

References

Copyright and related rights waived via CC0.

Citation

Please cite this document as:

Tenzro Engineering (eng@tenzro.com), "namespaces/tenzro-caip19: Tenzro Namespace - Asset [DRAFT]," Chain Agnostic Namespaces, tenzro-caip19, May 2026 / May 2026. [Online serial]. Available: https://github.com/ChainAgnostic/namespaces/tenzro-caip19.md