Search
Decade-Old Wisdom: Unpacking Satoshi Nakamoto’s Definitive Quote on Bitcoin Transaction Challenges, 13 Years On
29.7.2023
Thirteen years ago to the day, the enigmatic creator of Bitcoin, Satoshi Nakamoto, pronounced a quote that has since reverberated across various contexts. This prominent aphorism: “If you don’t believe me or don’t get it, I don’t have time to try to convince...
Bitcoin Core’s Version 24.0 Full-RBF Proposal Sparks Controversy, Synonym CEO Calls ‘Pet Agenda’ an ‘Attack’
4.11.2022
During the last few weeks, a number of individuals have been discussing the upcoming release of Bitcoin Core version 24.0 and how the codebase will include full-replace-by-fee (RBF) logic. The discussion has become controversial as a few Lightning Network and zero confirmation advocates have...
The Bitcoin Double-Spend That Never Happened
21.1.2021
No coins were added to the bitcoin supply, as some headlines might lead you to believe
Bitcoin double-spend spotted in the wild
21.1.2021
BitMEX Research has identified what it believes to be a double-spent Bitcoin transaction... worth $21
Ethereum Classic Suffers 51% Attack Again: Delisting Risk Amplified
30.8.2020
Beleaguered Ethereum Classic (ETC) blockchain suffered yet another 51% attack on August 29. The latest attack caused the reorganization of over 7,000 blocks and this corresponds to approximately two days of mining. At the time of reporting, it was not clear if there had been any double-spending...
Ethereum Classic 51% Attack: Okex Crypto Exchange Suffers $5.6 Million Loss, Contemplates Delisting ETC
18.8.2020
Cryptocurrency exchange Okex reveals it suffered the $5.6 million loss as a result of the double-spend carried out by the attacker(s) in Ethereum Classic 51% attack. Okex says it fully absorbed the loss as per its user-protection policy while insisting that the attack did not cause any loss to...
Ethereum Classic Attacker Successfully Double-Spends $1.68M in Second Attack: Report
7.8.2020
The attacker attempted to double-spend roughly $3.3 million during the second attack
Researchers Expose Flaw in Bitcoin Wallets That Could Be Exploited for Double-Spending
2.7.2020
A standard way to transact Bitcoin could be vulnerable to double-spending and DoS attacks, ZenGo has found
Don Tapscott: Blockchain Enabled P2P Trust For First Time in History
3.5.2020
In the closing keynote for Virtual Blockchain Week, acclaimed author Don Tapscott argued DLT is the foundational technology of “the second digital era.”
Bitcoin Gold Blockchain Hit by 51% Attack Leading to $70K Double Spend
27.1.2020
A 51% attack on the Bitcoin Gold blockchain lead to double spend of $70,000 worth of the cryptocurrency
Why Double Spends on BCH Are Not the Same as Replace-By-Fee Fraud
3.1.2020
When it comes to creating a peer-to-peer electronic cash system, accepting zero confirmation transactions becomes critically important. When a model’s main aim is to “just hodl” or push an isolated store of value narrative, important concerns like double spending can take a back...
Meet Snowglobe: An Avalanche-Based Pre-Consensus Protocol for BCH
22.12.2019
On December 20, BCHD and Openbazaar developer Tyler Smith published first draft specifications for a protocol he calls “Snowglobe.” Smith’s Github repository says that Snowglobe is a propagation protocol for nodes using Nakamoto Consensus and it uses an Avalanche-based consensus...
Travelbybit to Drop Bitcoin Payments After Viral Double Spend Video
20.12.2019
On December 18, Bitcoinbch.com published a video explaining how easy it is to double spend BTC transactions in the wild. Not long after the film was released, the payment processor Travelbybit announced it would be removing both BTC and BCH payments for over 400 Australian merchants. Unfortunately...
Video Shows How Easy It Is to Double Spend BTC Using RBF
18.12.2019
On December 18, the web portal Bitcoinbch.com published an informal notice explaining that merchants accepting BTC should switch to BCH because of “dangerous flaws” found in the BTC software. The problem is tied to slow confirmation times tethered to a BTC-based protocol called...
Android Tool Lets You Check Crypto Payment Apps for Double-Spends
13.10.2019
The risk of double-spending has traditionally been a major obstacle to creating and fully using digital money. A flaw of this kind would be detrimental to the credibility of any system claiming to provide universal solutions to the financial needs of our era. Whoever created Bitcoin elegantly...
New Storm Concept Could Strengthen Bitcoin Cash Instant Transactions
3.9.2019
Software developer Awemany has published a potential alternative approach to instant transactions on the Bitcoin Cash (BCH) network called “delta blocks” or Storm. The idea utilizes weak proof-of-work (PoW) for instant confirmations on Bitcoin Cash. The new Storm concept has piqued...
New Bitcoin Cash Specs Propose Heightened Privacy and Double-Spend Proofs
31.7.2019
Bitcoin Cash (BCH) development continues as software engineers have revealed two distinct concepts that aim to boost the BCH network. Bitcoin Cash developer Tom Zander has announced new documentation concerning the vision of a double-spend proofs, which now exists as a pull request to...