Talk:Blockchain

The content of Testnet was merged into Blockchain on 29 April 2025. The former page's history now serves to provide attribution for that content in the latter page, and it must not be deleted as long as the latter page exists. For the discussion at that location, see its talk page.

This is the talk page for discussing improvements to the Blockchain article.
This is not a forum for general discussion of the subject of the article.

Add new text under old text.
New to Wikipedia? Welcome! Learn to edit; get help.

Start a new topic

Article policies

Find sources: Google (books · news · scholar · free images · WP refs) · FENS · JSTOR · TWL

Archives: 1, 2, 3, 4, 5, 6: 3 months

This level-5 vital article is rated B-class on Wikipedia's content assessment scale.
It is of interest to multiple WikiProjects.

Computer security: Computing Mid‑importance

This article is within the scope of WikiProject Computer security, a collaborative effort to improve the coverage of computer security on Wikipedia. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks.Computer securityWikipedia:WikiProject Computer securityTemplate:WikiProject Computer securityComputer security

Mid This article has been rated as Mid-importance on the project's importance scale.

This article is supported by WikiProject Computing (assessed as Top-importance).

Things you can help WikiProject Computer security with:

How you can help:

Add to your watchlist the project talk page! Post there for help with articles or to suggest articles that need work.
Request editing suggestions on your talk page by entering WikiProject_Computer_security into this template.
Check the article alerts to participate in deletion discussions, review Good Article nominees, and review draft articles.
Edit any articles that interest you. Recommended:
- Most popular articles that need the most work (last refreshed 1 August 2026)
- Popular articles (monthly top articles by views)
- High-importance stub-quality articles
- High-importance start-quality articles
- Mid-importance stub-quality articles
- Mid-importance start-quality articles
- Unknown-importance stub-quality articles
- Unknown-importance start-quality articles
Review changes to popular articles or changes to talk pages.
Replace deprecated archival service links.
Recategorize articles in Category:Security to more specific categories
Fix something on the list of articles that need cleanup, including:
- Clarification needed
- Rewrite needed
- Expansion needed
- Style editing needed
- Update needed
- Orphaned (add links from other articles to these articles)
- Conflict of interest
- Original research
- Promotional tone
- Biographies of living persons (BLP) articles lacking sources
- Cites no sources
- Cites unreliable sources
Review unreviewed articles, if you're a new pages patroller.

Of the 3702 articles in this project 2060 or 56% are marked for cleanup, with 4324 issues in total.

Editing resources:

Computing: Software / CompSci Top‑importance

This article is within the scope of WikiProject Computing, a collaborative effort to improve the coverage of computers, computing, and information technology on Wikipedia. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks.ComputingWikipedia:WikiProject ComputingTemplate:WikiProject ComputingComputing

Top

This article has been rated as Top-importance on the project's importance scale.

This article is supported by WikiProject Software (assessed as High-importance).

This article is supported by WikiProject Computer science (assessed as High-importance).

Things you can help WikiProject Computer science with:

Here are some tasks awaiting attention:

Article requests:
- Requested articles/Applied arts and sciences/Computer science, computing, and Internet
Cleanup:
- Computer science articles needing attention
- Computer science articles needing expert attention
Copyedit:
- Computing
Expand:
- Computer science
Infobox:
- Computer science articles without infoboxes
Maintain:
- Timeline of computing 2020–present
Photo:
- Find pictures for the biographies of computer scientists (see List of computer scientists)
- Computing articles needing images
Stubs:
- Computer science stubs
Unreferenced:
- WikiProject Computer science/Unreferenced BLPs
Project-related:
- Tag all relevant articles in Category:Computer science and sub-categories with {{WikiProject Computer science}}

Mathematics Low‑priority

	Mathematics portal This article is within the scope of WikiProject Mathematics, a collaborative effort to improve the coverage of mathematics on Wikipedia. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks.MathematicsWikipedia:WikiProject MathematicsTemplate:WikiProject Mathematicsmathematics
Low	This article has been rated as Low-priority on the project's priority scale.
	This was a selected article on the Mathematics Portal.

Technology

This article is within the scope of WikiProject Technology, a collaborative effort to improve the coverage of technology on Wikipedia. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks.TechnologyWikipedia:WikiProject TechnologyTemplate:WikiProject TechnologyTechnology

Computer science Top‑importance

This article is within the scope of WikiProject Computer science, a collaborative effort to improve the coverage of Computer science related articles on Wikipedia. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks.Computer scienceWikipedia:WikiProject Computer scienceTemplate:WikiProject Computer scienceComputer science

Top

This article has been rated as Top-importance on the project's importance scale.

Things you can help WikiProject Computer science with:

Here are some tasks awaiting attention:

Article requests:
- Requested articles/Applied arts and sciences/Computer science, computing, and Internet
Cleanup:
- Computer science articles needing attention
- Computer science articles needing expert attention
Copyedit:
- Computing
Expand:
- Computer science
Infobox:
- Computer science articles without infoboxes
Maintain:
- Timeline of computing 2020–present
Photo:
- Find pictures for the biographies of computer scientists (see List of computer scientists)
- Computing articles needing images
Stubs:
- Computer science stubs
Unreferenced:
- WikiProject Computer science/Unreferenced BLPs
Project-related:
- Tag all relevant articles in Category:Computer science and sub-categories with {{WikiProject Computer science}}

Cryptocurrency High‑importance

	This article is within the scope of WikiProject Cryptocurrency, a collaborative effort to improve the coverage of cryptocurrency on Wikipedia. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks.CryptocurrencyWikipedia:WikiProject CryptocurrencyTemplate:WikiProject CryptocurrencyWikiProject Cryptocurrency
High	This article has been rated as High-importance on the importance scale.

Internet Top‑importance

	Internet portal This article is within the scope of WikiProject Internet, a collaborative effort to improve the coverage of the Internet on Wikipedia. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks.InternetWikipedia:WikiProject InternetTemplate:WikiProject InternetInternet
Top	This article has been rated as Top-importance on the project's importance scale.

Internet culture Top‑importance

This article is within the scope of WikiProject Internet culture, a collaborative effort to improve the coverage of internet culture on Wikipedia. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks.Internet cultureWikipedia:WikiProject Internet cultureTemplate:WikiProject Internet cultureInternet culture

Top

This article has been rated as Top-importance on the project's importance scale.

WikiProject Internet culture To-do:

Here are some tasks awaiting attention:

Article requests: View all requested internet culture articles
Expand: Pick an article from here or here
Photo: Category:Internet culture articles needing images
Stubs: All stubs are located here
Other: Category:Internet self-classification codes (!?); Try to get YouTube to FA; Tag all articles you find with {{WikiProject Internet culture}}
- See also Category:Internet culture articles needing attention

Cryptography: Computer science High‑importance

	This article is within the scope of WikiProject Cryptography, a collaborative effort to improve the coverage of Cryptography on Wikipedia. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks.CryptographyWikipedia:WikiProject CryptographyTemplate:WikiProject CryptographyCryptography
High	This article has been rated as High-importance on the importance scale.
	This article is supported by WikiProject Computer science (assessed as High-importance).

Databases (inactive)

This article is within the scope of WikiProject Databases, a project which is currently considered to be inactive.DatabasesWikipedia:WikiProject DatabasesTemplate:WikiProject DatabasesDatabases

Systems: Scientific modeling High‑importance

	Systems science portal This article is within the scope of WikiProject Systems, which collaborates on articles related to systems and systems science.SystemsWikipedia:WikiProject SystemsTemplate:WikiProject SystemsSystems
High	This article has been rated as High-importance on the project's importance scale.
	This article is within the field of Scientific modeling.

Economics Mid‑importance

	Economics portal This article is within the scope of WikiProject Economics, a collaborative effort to improve the coverage of Economics on Wikipedia. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks.EconomicsWikipedia:WikiProject EconomicsTemplate:WikiProject EconomicsEconomics
Mid	This article has been rated as Mid-importance on the project's importance scale.

Finance & Investment High‑importance

	This article is within the scope of WikiProject Finance & Investment, a collaborative effort to improve the coverage of articles related to Finance and Investment on Wikipedia. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks.Finance & InvestmentWikipedia:WikiProject Finance & InvestmentTemplate:WikiProject Finance & InvestmentFinance & Investment
High	This article has been rated as High-importance on the project's importance scale.

WARNING: ACTIVE COMMUNITY SANCTIONS

The article Blockchain, along with other pages relating to blockchain and cryptocurrencies, is designated by the community as a contentious topic. The current restrictions are:

Limit of one revert in 24 hours: This article is under WP:1RR (one revert per editor per article per 24-hour period)

Editors who repeatedly or seriously fail to adhere to the purpose of Wikipedia, any expected standards of behaviour, or any normal editorial process may be sanctioned.

Remedy instructions and exemptions

Enforcement procedures:

Violations of any restrictions (excluding 1RR/reverting violations) and other conduct issues should be reported to the arbitration enforcement noticeboard or the administrators' incidents noticeboard. Violations of revert restrictions should be reported to the administrators' edit warring noticeboard.
Editors who violate any listed restrictions may be blocked by any uninvolved administrator, even on a first offense.

With respect to any reverting restrictions:

Edits made solely to enforce any clearly established consensus are exempt from all edit-warring restrictions. In order to be considered "clearly established" the consensus must be proven by prior talk-page discussion.
Edits made which remove or otherwise change any material placed by clearly established consensus, without first obtaining consensus to do so, may be treated in the same manner as clear vandalism.
Clear vandalism of any origin may be reverted without restriction.
Reverts of edits made by anonymous (IP) editors that are not vandalism are exempt from the 1RR but are subject to the usual rules on edit warring. If you are in doubt, contact an administrator for assistance.

If you are unsure if your edit is appropriate, discuss it here on this talk page first. Remember: When in doubt, don't revert!

This article has previously been nominated to be moved. Please review prior discussions if you are considering renomination.

Discussions

Bold move, Block chain (transaction database) → Blockchain (transaction database), 19 May 2015‎
Revert, Blockchain (transaction database) → Block chain (transaction database), 20 May 2015‎
RM, Block chain (transaction database) → Block chain, procedurally closed, 28 May 2015 (discussion)
Bold move, Block chain (transaction database) → Block chain (database), 30 May 2015‎
RM, Block chain (database) → Block chain, No move, 20 June 2015 (discussion)
RM, Block chain (database) → Blockchain, no consensus, 31 October 2015 (discussion)
RM, Block chain (database) → Blockchain (database), moved, 10 June 2016 (discussion)
RM, Blockchain (database) → Blockchain, moved, 2 March 2017

The following reference(s) may be useful when improving this article in the future:

https://www.youtube.com/watch?v=hYip_Vuv8J0

Wiki Education assignment: Computation, Culture, and Society

Latest comment: 4 months ago1 comment1 person in discussion

This article was the subject of a Wiki Education Foundation–supported course assignment, between 25 March 2026 and 3 June 2026. Further details are available on the course page. Student editor(s): Takeshi Misaki (article contribs).

— Assignment last updated by Brianda (Wiki Ed) (talk) 22:21, 3 June 2026 (UTC)Reply

"Product tracing" listed at Redirects for discussion

Latest comment: 2 months ago1 comment1 person in discussion

The redirect Product tracing has been listed at redirects for discussion to determine whether its use and function meets the redirect guidelines. Readers of this page are welcome to comment on this redirect at Wikipedia:Redirects for discussion/Log/2026 August 21 § Product tracing until a consensus is reached. 1234qwer 1234qwer 4 22:57, 21 August 2026 (UTC)Reply

Wiki Education assignment: Linguistics in the Digital Age

Latest comment: 1 month ago1 comment1 person in discussion

This article is currently the subject of a Wiki Education Foundation–supported course assignment, between 14 August 2026 and 9 December 2026. Further details are available on the course page. Student editor(s): PotentialIl (article contribs).

— Assignment last updated by PotentialIl (talk) 18:42, 11 September 2026 (UTC)Reply

Suggested addition: evidence on blockchain in health care

Latest comment: 15 days ago2 comments2 people in discussion

This edit request by an editor with a conflict of interest has now been answered.
Set |answered=no to reactivate the request if necessary.

Hello, I am Sarina Yaghobian, the first author of the review cited below, and am disclosing my connection to this publication.

I would like to propose the following addition to the “Other uses” section for independent review:

“Blockchain and distributed ledger technologies have been investigated for managing access permissions, consent, provenance and audit trails in health care. A 2026 scoping review of 892 studies found that most involved prototypes or simulated evaluations, while evidence of sustained real-world implementation remained limited.”

Reference: Yaghobian S, Sulkowski N, Galambos G, Scarazzini L, Maloumian N, Verhaeghe S. Blockchain for Digital Health Governance: Evidence Gap Map and Scoping Review. Journal of Medical Internet Research. 2026;28:e96098. https://doi.org/10.2196/96098

Supporting material: Abstract, Results and Conclusions.

The proposed wording describes investigated applications and the limitations of the evidence, without claiming established clinical benefits. Could an independent editor assess whether this would improve the article and whether the proposed placement is appropriate? ~2026-49494-84 (talk) 16:50, 18 October 2026 (UTC)Reply

Done Dr vulpes (Talk) 23:49, 18 October 2026 (UTC)Reply