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qBitcoin: A Peer-to-Peer Quantum Cash System
General Finance · Submitted 15 Aug 2017
abstract compiled · 2026-09-23 · no language-model review
The authors' main claim In qBitcoin, the double-spending problem never happens and its security is guaranteed theoretically by virtue of quantum information theory.
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The paper's own sentences, arranged. Each label is drawn from a closed vocabulary; the number beside it is the probability the classifier gave that label. Numbers in the tables are the authors', checked by code. No sentence in this record was written by a model.
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The abstract, sentence by sentence
A decentralized online quantum cash system, called qBitcoin, is given. We design the system which has great benefits of quantization in the following sense. Firstly, quantum teleportation technology is used for coin transaction, which prevents from the owner of the coin keeping the original coin data even after sending the coin to another. This was a main problem in a classical circuit and a blockchain was introduced to solve this issue. In qBitcoin, the double-spending problem never happens and its security is guaranteed theoretically by virtue of quantum information theory. Making a block is time consuming and the system of qBitcoin is based on a quantum chain, instead of blocks. Therefore a payment can be completed much faster than Bitcoin. Moreover we employ quantum digital signature so that it naturally inherits properties of peer-to-peer (P2P) cash system as originally proposed in Bitcoin.
background contribution method result interpretation main claim
| # | sentence | role | the authors' own work | states the main conclusion | strength |
|---|---|---|---|---|---|
| s0 | A decentralized online quantum cash system, called qBitcoin, is given. | contribution 0.99 | 0.75 | 0.09 | asserted 0.99 |
| s1 | We design the system which has great benefits of quantization in the following sense. | contribution 0.98 | 0.78 | 0.08 | asserted 0.93 |
| s2 | Firstly, quantum teleportation technology is used for coin transaction, which prevents from the owner of the coin keeping the original coin data even after sending the coin to another. | method 0.75 | 0.69 | 0.10 | asserted 1.00 |
| s3 | This was a main problem in a classical circuit and a blockchain was introduced to solve this issue. | background 0.98 | 0.08 | 0.06 | asserted 1.00 |
| s4 | In qBitcoin, the double-spending problem never happens and its security is guaranteed theoretically by virtue of quantum information theory. | result 0.70 | 0.68 | 0.45 | asserted 1.00 |
| s5 | Making a block is time consuming and the system of qBitcoin is based on a quantum chain, instead of blocks. | contribution 0.46 | 0.56 | 0.07 | asserted 1.00 |
| s6 | Therefore a payment can be completed much faster than Bitcoin. | result 0.63 | 0.54 | 0.18 | asserted 0.98 |
| s7 | Moreover we employ quantum digital signature so that it naturally inherits properties of peer-to-peer (P2P) cash system as originally proposed in Bitcoin. | contribution 0.50 | 0.84 | 0.11 | asserted 1.00 |
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The paper
Original abstract
A decentralized online quantum cash system, called qBitcoin, is given. We design the system which has great benefits of quantization in the following sense. Firstly, quantum teleportation technology is used for coin transaction, which prevents from the owner of the coin keeping the original coin data even after sending the coin to another. This was a main problem in a classical circuit and a blockchain was introduced to solve this issue. In qBitcoin, the double-spending problem never happens and its security is guaranteed theoretically by virtue of quantum information theory. Making a block is time consuming and the system of qBitcoin is based on a quantum chain, instead of blocks. Therefore a payment can be completed much faster than Bitcoin. Moreover we employ quantum digital signature so that it naturally inherits properties of peer-to-peer (P2P) cash system as originally proposed in Bitcoin.
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How the literature uses it
5 arXiv papers cite this in 6 sentences
Papers citing it
Cites it as background 5 papers
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This issue has been studied in a wide range of fields [ref] , including Blockchain [ref] and its quantum extensions [ref] .
Quantum Protocol for Decision Making and Verifying Truthfulness among $N$-quantum Parties: Solution and Extension of the Quantum Coin Flipping Game · General Background · 0.90
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A number (in fact, more than 20) of various quantum money schemes has been recently proposed [ref] .
Semi-Device Independent Quantum Money · Introduction · 0.94
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For instance, there were several proposals on empowering Bitcoin Electronic Cash System with quantum technologies (see, e.g. [ref] ), as well as on possible attacks on this system [ref] .
Quantum-Assisted Blockchain · Introduction · 0.85
What it cites · 6 sentences without a confident label
Cites as background 3 papers
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There is a survey on trying to quantize Bitcoin [ref] based on a classical blockchain system and a classical digital signature protocol proposed in [ref] .
Quantum Money from Hidden Subspaces · Related works · 0.98
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There is a survey on trying to quantize Bitcoin [ref] based on a classical blockchain system and a classical digital signature protocol proposed in [ref] .
Quantum Bitcoin: An Anonymous and Distributed Currency Secured by the No-Cloning Theorem of Quantum Mechanics · Related works · 0.98
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Aaronson proposed a quantum money scheme where public key was used to verify a banknote [ref] and later his scheme was developed in [ref] .
Quantum Copy-Protection and Quantum Money · Related works · 0.93
Discussion
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