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The network layer communication mechanism in its architecture is the core of the networking method, message propagation, and data verification among blockchain nodes, which is the basis to ensure blockchain\u2019s performance and key features. When blocks are propagated in peer-to-peer (P2P) networks with gossip protocol, the high propagation delay of the protocol itself reduces the propagation speed of the blocks, which is prone to the chain forking phenomenon and causes double payment attacks. To accelerate the propagation speed and reduce the fork probability, this paper proposes a blockchain network propagation mechanism based on proactive network provider participation for P2P (P4P) architecture. This mechanism first obtains the information of network topology and link status in a region based on the internet service provider (ISP), then it calculates the shortest path and link overhead of peer nodes using P4P technology, prioritizes the nodes with good local bandwidth conditions for transmission, realizes the optimization of node connections, improves the quality of service (QoS) and quality of experience (QoE) of blockchain networks, and enables blockchain nodes to exchange blocks and transactions through the secure propagation path. Simulation experiments show that the proposed propagation mechanism outperforms the original propagation mechanism of the blockchain network in terms of system overhead, rate of data success transmission, routing hops, and propagation delay.<\/jats:p>","DOI":"10.1155\/2021\/8363131","type":"journal-article","created":{"date-parts":[[2021,8,5]],"date-time":"2021-08-05T21:50:08Z","timestamp":1628200208000},"page":"1-12","source":"Crossref","is-referenced-by-count":9,"title":["Blockchain Network Propagation Mechanism Based on P4P Architecture"],"prefix":"10.1155","volume":"2021","author":[{"given":"Junjie","family":"Huang","sequence":"first","affiliation":[{"name":"College of Computer Science, Sichuan Normal University, Chengdu, China"}]},{"given":"Liang","family":"Tan","sequence":"additional","affiliation":[{"name":"College of Computer Science, Sichuan Normal University, Chengdu, China"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9911-8484","authenticated-orcid":true,"given":"Sun","family":"Mao","sequence":"additional","affiliation":[{"name":"College of Computer Science, Sichuan Normal University, Chengdu, China"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5735-2507","authenticated-orcid":true,"given":"Keping","family":"Yu","sequence":"additional","affiliation":[{"name":"Global Information and Telecommunication Institute, Waseda University, Tokyo, Japan"}]}],"member":"311","reference":[{"key":"1","doi-asserted-by":"publisher","DOI":"10.1109\/JIOT.2019.2961707"},{"key":"2","doi-asserted-by":"publisher","DOI":"10.1109\/JIOT.2020.3048345"},{"key":"3","doi-asserted-by":"publisher","DOI":"10.1016\/j.csi.2021.103517"},{"key":"4","doi-asserted-by":"publisher","DOI":"10.1109\/TII.2021.3049141"},{"key":"5","doi-asserted-by":"publisher","DOI":"10.1016\/j.dcan.2020.10.002"},{"key":"6","doi-asserted-by":"publisher","DOI":"10.1109\/JSYST.2020.3020474"},{"key":"7","doi-asserted-by":"publisher","DOI":"10.1109\/MCE.2020.3035520"},{"key":"8","doi-asserted-by":"publisher","DOI":"10.1007\/s10207-018-0422-4"},{"issue":"1","key":"9","first-page":"149","article-title":"Bitcoin blockchain bifurcation research","volume":"51","author":"W. 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