Firo (cryptocurrency)
cryptocurrency

Firo, formerly known as Zcoin, is a cryptocurrency aimed at using cryptography to provide better privacy for its users compared to other cryptocurrencies such as Bitcoin.
History
Zcoin
Creation
In late 2014, Poramin Insom, a student in Masters in Security Informatics from Johns Hopkins University, wrote a paper on implementing the zerocoin protocol into a cryptocurrency with Matthew Green as a faculty member. The project to create a standalone cryptocurrency implementing the Zerocoin protocol was named "Moneta".
On 28 September 2016, Zcoin, the first cryptocurrency to implement the zerocoin protocol, was launched by Poramin Insom and team. Roger Ver was the initial investor. Reuben Yap, a former lawyer and founder of virtual private network BolehVPN joined the team as co-founder shortly after the launch of Zcoin.
2017–2018
On 20 February 2017, a malicious coding attack on the Zerocoin protocol created 370,000 fake tokens which perpetrators sold for over 400 Bitcoins ($440,000). Zcoin team announced that a single-symbol error in a piece of code "allowed an attacker to create Zerocoin spend transactions without a corresponding mint". Unlike Ethereum during the DAO event, developers have opted not to destroy any coins or attempt to reverse what happened with the newly generated ones.
In September 2017, Poramin set up an exchange named "Satang Pro" that can convert Thai Baht to Zcoin directly.
Begin with the source’s own compact description: “Firo (cryptocurrency)” is cryptocurrency. The dossier treats that line as a proposition to test through Firo and cryptocurrency, not as a finished interpretation.
Why this record matters
The phrase “cryptocurrency” supplies a clear boundary for inquiry. It also exposes the unanswered questions: who defined that boundary, when it became stable and which sources sit outside it.
The citation trail is more important than the brevity of the summary: it shows where individual claims can be examined in context. The source revision retrieved here is dated Jul 10, 2026. The linked authority identifier is Q85817021. None of the 2 selected statements returned an explicit reference. The first chronological checks are 2014, 2016, 2017 and 2018.
Overview language is designed for orientation and should not be treated as a substitute for the evidence cited beneath it. The source lead contains qualifying language; that uncertainty should survive quotation, summary and reuse. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
How to read it
Use the entry as an orientation point, then follow its citations and revision history. Names, dates and institutional relationships should be checked against the original record.
- Subject orientation
- Search vocabulary
- Locating named sources
The closest primary source, responsible institution and strongest cited specialist reference.
Three-step research path
- Establish the record: confirm the title “Firo (cryptocurrency)”, its source revision and the description used here.
- Expand the search: follow Firo (cryptocurrency) primary sources, Firo (cryptocurrency) archive and Firo research across catalogues and specialist indexes.
- Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.
Questions for further research
- Which source most directly establishes the central claim about “Firo (cryptocurrency)”?
- What terminology or title could unlock a more precise catalogue search?
- Which cited source is closest to the event, object or claim?
Search terms from this dossier
This entry incorporates text from “Firo (cryptocurrency)” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.