@article{ART003305982},
author={Nitin Bhagat and JongWook Bae and Su-Hyun Lee},
title={ERC-7891: A New Protocol Design for Hierarchical NFTs with Splitting and Merging},
journal={Journal of The Korea Society of Computer and Information},
issn={1598-849X},
year={2026},
volume={31},
number={2},
pages={173-181},
doi={10.9708/jksci.2026.31.02.173}
TY - JOUR
AU - Nitin Bhagat
AU - JongWook Bae
AU - Su-Hyun Lee
TI - ERC-7891: A New Protocol Design for Hierarchical NFTs with Splitting and Merging
JO - Journal of The Korea Society of Computer and Information
PY - 2026
VL - 31
IS - 2
PB - The Korean Society Of Computer And Information
SP - 173
EP - 181
SN - 1598-849X
AB - This paper presents ERC-7891, a new Ethereum standard that introduces protocol-level mechanisms for splitting, merging and redistributing fractional ownership within a hierarchical NFT (Non-Fungible Token) structure. Existing standards like ERC-721, ERC-1155 and ERC-6150 lacked functionality for dynamic structural changes, limiting their applicability to real-world assets (RWAs) that evolve over time. ERC-7891, proposed in this paper, addresses this gaps by defining standardized functions and events, enabling asset management with transparency and verifiable lineage tracking. The proposed architecture integrates seamlessly with ERC-6150 and ERC-721, incorporating ERC-165 interface detection for interoperability among decentralized applications (DApps). The proposed standard documented the protocol through the formal standardization process, resulting in ERC-7891’s successful adoption as an official Ethereum standard.
ERC-7891 enables dynamic hierarchical NFTs, providing a foundation for next-generation decentralized applications in domains such as real estate, supply chain management and modular product ecosystems.
KW - Hierarchical NFT;Split and Merge;Ethereum Standard;Blockchain Interoperability
DO - 10.9708/jksci.2026.31.02.173
ER -
Nitin Bhagat, JongWook Bae and Su-Hyun Lee. (2026). ERC-7891: A New Protocol Design for Hierarchical NFTs with Splitting and Merging. Journal of The Korea Society of Computer and Information, 31(2), 173-181.
Nitin Bhagat, JongWook Bae and Su-Hyun Lee. 2026, "ERC-7891: A New Protocol Design for Hierarchical NFTs with Splitting and Merging", Journal of The Korea Society of Computer and Information, vol.31, no.2 pp.173-181. Available from: doi:10.9708/jksci.2026.31.02.173
Nitin Bhagat, JongWook Bae, Su-Hyun Lee "ERC-7891: A New Protocol Design for Hierarchical NFTs with Splitting and Merging" Journal of The Korea Society of Computer and Information 31.2 pp.173-181 (2026) : 173.
Nitin Bhagat, JongWook Bae, Su-Hyun Lee. ERC-7891: A New Protocol Design for Hierarchical NFTs with Splitting and Merging. 2026; 31(2), 173-181. Available from: doi:10.9708/jksci.2026.31.02.173
Nitin Bhagat, JongWook Bae and Su-Hyun Lee. "ERC-7891: A New Protocol Design for Hierarchical NFTs with Splitting and Merging" Journal of The Korea Society of Computer and Information 31, no.2 (2026) : 173-181.doi: 10.9708/jksci.2026.31.02.173
Nitin Bhagat; JongWook Bae; Su-Hyun Lee. ERC-7891: A New Protocol Design for Hierarchical NFTs with Splitting and Merging. Journal of The Korea Society of Computer and Information, 31(2), 173-181. doi: 10.9708/jksci.2026.31.02.173
Nitin Bhagat; JongWook Bae; Su-Hyun Lee. ERC-7891: A New Protocol Design for Hierarchical NFTs with Splitting and Merging. Journal of The Korea Society of Computer and Information. 2026; 31(2) 173-181. doi: 10.9708/jksci.2026.31.02.173
Nitin Bhagat, JongWook Bae, Su-Hyun Lee. ERC-7891: A New Protocol Design for Hierarchical NFTs with Splitting and Merging. 2026; 31(2), 173-181. Available from: doi:10.9708/jksci.2026.31.02.173
Nitin Bhagat, JongWook Bae and Su-Hyun Lee. "ERC-7891: A New Protocol Design for Hierarchical NFTs with Splitting and Merging" Journal of The Korea Society of Computer and Information 31, no.2 (2026) : 173-181.doi: 10.9708/jksci.2026.31.02.173
