TY - GEN
T1 - Bridging Private and Public Blockchains
T2 - 7th International Congress on Blockchain and Applications, BLOCKCHAIN 2025
AU - Valarezo-Castañeda, Darío
AU - Gómez-Goiri, Aitor
AU - Regueiro, Cristina
N1 - Publisher Copyright:
© The Author(s), under exclusive license to Springer Nature Switzerland AG 2026.
PY - 2026
Y1 - 2026
N2 - This study evaluates the current state of blockchain interoperability by analyzing existing cross-chain solutions and their effectiveness in securely transferring digital assets across different blockchain networks. The primary objective is to identify technologies that enable secure and efficient cross-chain transfers, with a focus on the ERC-1155 standard. Through an in-depth analysis, the paper highlights key challenges in interoperability between private-to-public and private-to-private blockchains. Additionally, advanced cryptographic techniques, particularly Zero-Knowledge Proofs are examined for their role in enhancing privacy, security, and transaction validation. As part of this research, a custom relayer was developed, successfully bridging token transfers between private and public blockchains using zk-SNARKs. This implementation shows the feasibility of secure, privacy-preserving cross-chain transactions, contributing to the ongoing development of interoperability standards in private-to-public networks.
AB - This study evaluates the current state of blockchain interoperability by analyzing existing cross-chain solutions and their effectiveness in securely transferring digital assets across different blockchain networks. The primary objective is to identify technologies that enable secure and efficient cross-chain transfers, with a focus on the ERC-1155 standard. Through an in-depth analysis, the paper highlights key challenges in interoperability between private-to-public and private-to-private blockchains. Additionally, advanced cryptographic techniques, particularly Zero-Knowledge Proofs are examined for their role in enhancing privacy, security, and transaction validation. As part of this research, a custom relayer was developed, successfully bridging token transfers between private and public blockchains using zk-SNARKs. This implementation shows the feasibility of secure, privacy-preserving cross-chain transactions, contributing to the ongoing development of interoperability standards in private-to-public networks.
KW - Blockchain
KW - Cross-Chain Bridge
KW - Interoperability
KW - zk-SNARK
UR - https://www.scopus.com/pages/publications/105027120222
U2 - 10.1007/978-3-032-05877-5_4
DO - 10.1007/978-3-032-05877-5_4
M3 - Conference contribution
AN - SCOPUS:105027120222
SN - 9783032058768
T3 - Lecture Notes in Networks and Systems
SP - 38
EP - 48
BT - Blockchain and Applications, 7th International Congress
A2 - Pastor-Vargas, Rafael
A2 - Carrera, Albano
A2 - Molnár, Bálint
A2 - Lage, Óscar
A2 - Prieto, Javier
A2 - Nongaillard, Antoine
PB - Springer Science and Business Media Deutschland GmbH
Y2 - 25 July 2025 through 27 July 2025
ER -