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 Conference Papers (Available on Advance Programs)  (Sort by: Date Descending)
 Results 1 - 19 of 19  /   
Committee Date Time Place Paper Title / Authors Abstract Paper #
CQ, ICM, NS, NV
(Joint)
2021-11-26
14:50
Fukuoka JR Hakata Stn. Hakata EkiHigashi Rental Room
(Primary: On-site, Secondary: Online)
Optimal Neighbor Selection Proposal in Blochchain Networks with Multiple Regions
Hiroshi Matsuura, Yoshinori Goto, Hidehiro Sao (NTT) NS2021-92
Blockchain is widely used for the platform of crypto-currencies represented by Bitcoin. In a Blockchain network (NW), sh... [more] NS2021-92
pp.38-43
IN, NS
(Joint)
2021-03-04
11:40
Online Online Bitcoin Scaling Test Network Performance Evaluation Experiment
Akihiro Fujihara (CIT) IN2020-69
Bitcoin Scaling Test Network (STN) is an experimental network to solve the
scalability problem of Bitcoin by using on-... [more]
IN2020-69
pp.91-96
ICSS, IPSJ-SPT 2021-03-02
10:25
Online Online Consideration on the mechanism of identifying and tracking Bitcoin users
Toshiaki Saisho (Advanced IT Corp.), Shigeo Tsujii (Chuo Univ.), Kouichi Sakurai (Kyushu Univ./ATR) ICSS2020-44
The use of CryptoAssets for money laundering and settlement of fraudulent and illegal transactions due to strong anonymi... [more] ICSS2020-44
pp.108-113
ISEC 2020-05-20
14:40
Online Online Making Variance of Mining Time Smaller for Computational Problems Based on Hash Functions -- Serial Concatenation and Parallel Concatenation --
Hiroaki Anada (Univ. Nagasaki), Kouichi Sakurai (Kyushu Univ.) ISEC2020-9
In Bitcoin, the computational problem which miners should solve is
an equation described in the term of a hash functio... [more]
ISEC2020-9
pp.33-40
NS, IN
(Joint)
2020-03-05
10:10
Okinawa Royal Hotel Okinawa Zanpa-Misaki
(Cancelled but technical report was issued)
Effects of Relay Networks in Bitcoin
Kai Otsuki, Kazuyuki Shudo, Ryohei Banno (TIT) NS2019-192
Bitcoin's throughput falls greatly behind that of centralized systems such as Visa and PayPal.
Its throughput must be ... [more]
NS2019-192
pp.89-94
NS, IN
(Joint)
2020-03-05
11:00
Okinawa Royal Hotel Okinawa Zanpa-Misaki
(Cancelled but technical report was issued)
Block Interval Adjustment Toward Fair Proof-of-Work Blockchains
Reiki Kanda, Kazuyuki Shudo (Tokyo Tech) NS2019-206
We propose a finer measure of fairness than existing one.
Next, we propose a method of adjusting the block interval tha... [more]
NS2019-206
pp.169-174
NS, IN
(Joint)
2020-03-05
11:40
Okinawa Royal Hotel Okinawa Zanpa-Misaki
(Cancelled but technical report was issued)
Simulation of the Bitcoin Network Considering Compact Block Relay and Internet Improvements
Ryunosuke Nagayama, Kazuyuki Shudo, Ryohei Banno (Tokyo Tech) NS2019-208
Improving transaction throughput is an important challenge for Bitcoin. However, shortening the block generation interva... [more] NS2019-208
pp.179-183
RISING
(2nd)
2019-11-26
14:10
Tokyo Fukutake Learning Theater, Hongo Campus, Univ. Tokyo [Poster Presentation] *
Masahiro Sasabe (NAIST)
(To be available after the conference date) [more]
NS, ICM, CQ, NV
(Joint)
2019-11-21
09:30
Hyogo Rokkodai 2nd Campus, Kobe Univ. Risk Evaluation of Block Diffusion Delaying Attacks in a Bitcoin Network
Masanari Yamamoto, Masahiro Sasabe, Shoji Kasahara (NAIST) CQ2019-88
In the Bitcoin system,transactions and their collections, i.e., blocks, are distributed over a Peer-to-Peer (P2P) networ... [more] CQ2019-88
pp.1-6
IA 2019-11-14
14:35
Tokyo Kwansei Gakuin University, Tokyo Marunouchi Campus (Sapia Tower) [Invited Talk] Interruption Risk of Competitive Block Diffusion in a Bitcoin Network
Masahiro Sasabe (NAIST) IA2019-27
Bitcoin is one of the cryptcurrency systems, which enables anonymous users to reach a global consensus on their distribu... [more] IA2019-27
pp.21-26
NS 2019-10-11
10:10
Aichi Nagoya Institute of Technology [Invited Lecture] Mathematical Modeling of Block Distribution Interruption in a Bitcoin Network
Masahiro Sasabe (NAIST) NS2019-116
(To be available after the conference date) [more] NS2019-116
p.75
ISEC, SITE, ICSS, EMM, HWS, BioX, IPSJ-CSEC, IPSJ-SPT [detail] 2019-07-23
11:35
Kochi Kochi University of Technology A method of giving trust to users in Bitcoin
Asuka Suzuki, Teppei Sato (Tsukuba Univ.), Omote Kazumasa (Tsukuba Univ./NICT) ISEC2019-16 SITE2019-10 BioX2019-8 HWS2019-11 ICSS2019-14 EMM2019-19
In the Bitcoin network, there is no construction to give trust to the participating nodes. On the other hand, there is P... [more] ISEC2019-16 SITE2019-10 BioX2019-8 HWS2019-11 ICSS2019-14 EMM2019-19
pp.29-34
IA, SITE, IPSJ-IOT [detail] 2019-03-08
14:00
Tokushima Grand XIV Naruto Effect of relay networks on the Bitcoin network.
Kai Otuki, Yuusuke Aoki, Kazuyuki Shudo (TIT) SITE2018-84 IA2018-76
Bitcoin and other blockchains made it possible to manage ledger information without a centralized sys- tem even in a gro... [more] SITE2018-84 IA2018-76
pp.309-316
IA, SITE, IPSJ-IOT [detail] 2019-03-08
14:25
Tokushima Grand XIV Naruto Estimation of Data Prooagation Time on the Bitcoin Network
Reiki Kanda, Kazuyuki Shudo (Tokyo Tech) SITE2018-85 IA2018-77
The goal of this research is to estimate data propagation time on the Bitcoin network. The means here is Network Coordin... [more] SITE2018-85 IA2018-77
pp.317-322
SITE, IPSJ-CE, IPSJ-CLE 2017-12-08
13:00
Ehime   An Evaluation of Bitcoin Full Node Cluster -- Investigation of governance control over block chains by ratio of number of nodes --
Shigeichiro Yamasaki (Kindai Univ.) SITE2017-54
The purpose of this research is to show that the full node operator of the P2P type system in the block chain can also b... [more] SITE2017-54
pp.1-4
IA 2017-10-13
15:40
Tokyo Fukutake Hall, The University of Tokyo An Experiment on Estimation of Data Propagation Time on the Bitcoin Network
Reiki Kanda, Masaaki Ohnishi, Kazuyuki Shudo (Tokyo Inst. of Tech.) IA2017-20
The goal of this research is to estimate data propagation time on the Bitcoin network. The means here is Network Coordin... [more] IA2017-20
pp.7-12
NS 2017-04-20
14:20
Toyama Toyama Shoko Kaigisyo A fast and secure payment confirmation method in Bitcoin
Kento Nakanishi, Satoshi Ohzahata, Toshihiko Kato (UEC) NS2017-3
Bitcoin published in 2008 has been supported development of cryptographic currency in recent years. The blockchain is on... [more] NS2017-3
pp.13-18
ICSS, IPSJ-SPT 2017-03-13
14:25
Nagasaki University of Nagasaki Feature Extraction for Identifying High Yielding Investment Programs Related Transactions in Bitcoin
Kentaroh Toyoda, Tomoaki Ohtsuki (Keio Univ.), P. Takis Mathiopoulos (UoA) ICSS2016-49
As recent research has revealed, Bitcoin is used as fraudulent activities such as HYIP (High Yield Investment Programs).... [more] ICSS2016-49
pp.31-36
IA 2016-11-04
15:05
Overseas Taipei (Taiwan) An anonymous distributed electronic voting system using Zerocoin
Yu Takabatake, Daisuke Kotani, Yasuo Okabe (Kyoto Univ.) IA2016-54
Existing e-voting systems rely on a database managed by an administrator, and hence the administrator may possibly count... [more] IA2016-54
pp.127-131
 Results 1 - 19 of 19  /   
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