Paid Contributions Open

Write for QubitChain.io

Publish in One of the Fastest-Growing Technical Security Niches on the Web

QubitChain.io covers the intersection of quantum computing, post-quantum cryptography, blockchain security, and the infrastructure being built for a post-quantum world. Our audience spans cryptographers, blockchain developers, CISOs, compliance officers, DeFi builders, institutional investors, and enterprise security architects. We have built this from zero to a site with consistent Google Search traffic in under a year, entirely through original technical content.

We accept paid guest contributions and sponsored content across our core topic clusters. All placements are paid. All packages include at minimum an author bio with a do-follow link. Contextual do-follow links within the article body are available from our Contributor package upward.

Why Publish With QubitChain.io

Four reasons a placement here does more than move a metric: who reads it, what it ranks for, how it grows, and how long it lasts.

A concentrated, high-value readership

The people reading QubitChain.io are not passive consumers of general tech content. They are actively making decisions about post-quantum migration timelines, evaluating blockchain infrastructure for compliance with NSA CNSA 2.0 and the UK NCSC 2028 roadmap, and building products in cryptography and security. This is a buyer and decision-maker audience in a fast-growing regulatory space.

An uncrowded niche with strong search visibility

Content on this site ranks on page one for technical queries. These are not easy rankings. They reflect genuine topical authority built on original research, and you can see the standard for yourself across our blog.

CRYSTALS-Dilithium ML-DSA explainedFN-DSA FIPS 206 statushow many qubits to break Bitcoin ECDSA 2026UK NCSC post-quantum migration timeline 2028 2031 2035DeFi quantum threat

Real traffic, real growth

The site has generated over 35,000 Google Search impressions and 200-plus clicks in its first year of operation across a highly competitive technical niche. Those are qualified impressions from people actively researching quantum security, blockchain infrastructure, and post-quantum compliance.

Academic citation and permanent indexing

Our Technical Whitepaper is published in the Zenodo academic repository with a permanent DOI (10.5281/zenodo.21743367). The site is indexed by Google Scholar. Content here carries topical authority that extends into academic and institutional research contexts.

Who You Are Writing For

A profile of the readership your placement reaches, and the regulatory frame they read within. If you want to see how deep that goes, start with our Knowledge Hub or the blockchain security comparison.

Core topics
Post-quantum cryptography, quantum computing, blockchain security, DeFi, cybersecurity, fintech, web3, digital assets
Reader roles
Security architects, blockchain developers, CISOs, compliance officers, cryptographers, fintech founders, institutional investors, DeFi builders, enterprise technology buyers
Geographic split
Worldwide. Primary concentrations in North America (United States, Canada), Western Europe (United Kingdom, Germany, Netherlands, France, Switzerland, Sweden, Denmark, Finland), Southern and Eastern Europe (Poland, Romania, Czech Republic, Spain, Italy), Asia-Pacific (India, Singapore, Japan, South Korea, Australia, New Zealand, Hong Kong), Middle East (United Arab Emirates, Israel, Saudi Arabia), Latin America (Brazil, Argentina, Mexico), and Africa (South Africa, Nigeria, Kenya). Contributors and sponsored content enquiries are accepted from all countries without restriction.
Depth
Advanced technical to senior professional. Readers follow NIST publications, regulatory guidance, and peer-reviewed cryptographic research.
Regulatory context
NSA CNSA 2.0, UK NCSC 2028/2031/2035 PQC timelines, EU PQC Roadmap, MiCA, NIS2

Topics We Accept

We have broadened our editorial scope to include a wider range of security, technology, and blockchain topics alongside our core quantum focus. All content must provide substantive value to a technically informed audience. We do not accept shallow content, link farms, or promotional pieces disguised as articles.

Core topics

Highest priority
Post-quantum cryptography and NIST PQC standards (ML-KEM, ML-DSA, SLH-DSA, FN-DSA, HQC)
Quantum computing hardware, timelines, and cryptographic implications
Blockchain security architecture, threat modeling, and protocol design
Cryptographic standards and regulatory compliance (NIST FIPS, NSA CNSA 2.0, UK NCSC, EU PQC Roadmap, NIS2)
DeFi security, smart contract auditing, and on-chain risk analysis

Broader topics we actively welcome

Open

General cybersecurity

Zero-trust architecture, threat intelligence, identity and access management, enterprise security posture

Cryptography broadly

Symmetric and asymmetric encryption, key management, PKI migration, HSM security, certificate lifecycle management

Blockchain and web3

Layer 1 and Layer 2 protocol design, consensus mechanisms, cross-chain bridges, tokenomics, governance

Digital assets and institutional finance

Custody, regulatory compliance, tokenized securities, stablecoin infrastructure

Privacy technology

Zero-knowledge proofs, secure multi-party computation, homomorphic encryption, differential privacy

AI and security

Adversarial machine learning, AI in threat detection, LLM security, deepfake detection

Quantum technology broadly

Quantum sensing, quantum communications, QKD, quantum hardware comparison

Fintech and regtech

AML/KYC technology, payment infrastructure security, regulatory technology, open banking security

Cloud and infrastructure security

Cloud-native security, container security, supply chain security, SBOM

Hardware and semiconductor security

Secure element design, TPM, side-channel attacks, hardware root of trust

Topics we do not accept regardless of tier

Declined
General cryptocurrency trading advice or price prediction
NFT collection launches or promotional mint announcements
Link farm content with no substantive value
Content requiring false or misleading technical claims
Gambling, adult, pharma, or payday loan adjacent content
Anything we consider reputationally inappropriate for a site with academic citations and regulatory readership

Five Tiers, One Ladder

From a $49 author-bio placement to a $799 article our editorial team writes for you. Pick the rung that matches your campaign.

All placements are paid. There is no free submission tier. Every package includes at minimum an author bio with a do-follow link. Contextual do-follow links within the article body are available from the Contributor package upward.

Tier 1

Starter Placement

$49USD, one placement

The most accessible entry point. Your article is published with an author bio section at the end of the post containing a do-follow link to your website, portfolio, or company page. No contextual links within the article body at this tier.

What you get
  • Published post of 800 to 1,200 words at qubitchain.io/blog
  • One do-follow link in the author bio
  • Your name and one-sentence bio displayed beneath the article
  • Social share on publication day
  • Permanent indexing
  • No contextual links in the article body
Best for

Individual contributors, freelance writers, early-stage startups, or anyone who wants a presence on the site at a low entry price and is primarily interested in the author attribution link rather than in-body contextual placement.

Order Starter Placement — $49
Tier 2

Contributor Package

$149USD, one placement

Full guest post with both a contextual link within the article body and a do-follow author bio link. The contextual link is no-follow at this tier. The author bio link is do-follow.

What you get
  • Published post of 1,000 to 1,500 words
  • One contextual no-follow link to your target URL within the article body at a natural location
  • One do-follow link in the author bio
  • Social share on publication day
  • Published at qubitchain.io/blog
Best for

Agencies running managed link building campaigns who want variety in link type and price point, individual bloggers, and smaller companies wanting a mention within the article body without the full sponsored post investment.

Order Contributor Package — $149
Tier 4

Premium Sponsored Post

$499USD, one placement

The full sponsored post package with two contextual do-follow links, longer word count, and dedicated social promotion with custom messaging.

What you get
  • Published post of 2,000 to 3,500 words
  • Two contextual do-follow links to URLs of your choice with anchor text you specify
  • One do-follow link in the author bio
  • "Sponsored Content" label
  • Dedicated social promotion on LinkedIn and X with custom messaging rather than standard format
  • Permanent indexing at qubitchain.io/blog
  • Response within 2 business days
  • Publication within 7 business days of final approved draft
Best for

Established security vendors, enterprise blockchain platforms, PQC software companies, and digital agencies managing SEO campaigns with meaningful budgets in the cybersecurity and blockchain niche.

Order Premium Sponsored Post — $499
We Write It
Tier 5

Native Editorial Partnership

$799USD, one placement

We write the content for you. You provide the brief, approved messaging, key claims, and target URLs. The QubitChain editorial team produces an original long-form article matched to our content quality and voice, with your brand integrated naturally.

What you get
  • Original article of 2,500 to 4,000 words written by the QubitChain editorial team
  • Two contextual do-follow links to URLs of your choice
  • One do-follow link in the brand bio
  • "Sponsored Content" label
  • Promoted across all social channels with custom messaging
  • Featured in our subscriber newsletter where editorially appropriate
  • Permanent indexing
  • One revision round included
  • Response within 2 business days
  • Article delivered within 14 business days
Best for

Organizations that want high-quality content in a technically demanding niche without the burden of sourcing writers who can write credibly about quantum cryptography, blockchain security, or post-quantum compliance. Ideal for PQC software vendors, quantum hardware companies, cybersecurity platforms, and blockchain infrastructure teams.

Order Native Editorial Partnership — $799

Multi-Post Bundle

$999 for 3 Sponsored Contributions$1,599 for 2 Native Editorial Posts plus 2 Link Insertions

For agencies and organizations running ongoing SEO programs who want a sustained content presence across multiple months. Bundle pricing is 20 to 25 percent less than individual placement pricing.

Delivery schedule is agreed at time of purchase, typically one placement per four to six weeks to maintain natural publication cadence. Social promotion included with every piece.

Enquire About Bundles

Quick Reference Pricing Table

Every package, price, word count, and link attribute in one row-by-row view.

Swipe horizontally to see all columns

QubitChain.io guest post and sponsored content packages, prices, word counts, and link attributes
PackagePriceWordsContextual LinksBio LinkLabelWho Writes
Starter Placement$49800-1,200None1 do-followNoneYou
Contributor Package$1491,000-1,5001 no-follow in body1 do-followNoneYou
Sponsored Contribution$2991,000-2,0001 do-follow in body1 do-followSponsored ContentYou
Premium Sponsored Post$4992,000-3,5002 do-follow in body1 do-followSponsored ContentYou
Native Editorial$7992,500-4,0002-3 do-follow in body1 do-followSponsored ContentQubitChain
Link Insertion (no-follow)$149Existing article1 no-followNoneNoneN/A
Link Insertion (do-follow)$249Existing article1 do-followNoneNoneN/A
3-Post Bundle$999VariesUp to 3 do-followIncludedSponsored ContentYou
2 Native + 2 Insertions$1,599VariesUp to 6 do-followIncludedSponsored ContentMixed

Editorial Guidelines

These apply to all submissions regardless of tier.

01

Originality

All content must be original and not published elsewhere including on your own site, Medium, LinkedIn Articles, or any third-party platform. We run plagiarism and duplication checks. Submitted content found to exist elsewhere will be declined and paid tiers will not be refunded if the duplication is discovered post-payment.

02

Length

Minimum 800 words for Starter Placement. Minimum 1,000 words for Contributor and Sponsored tiers. No hard maximum though pieces above 5,000 words may be reviewed for splitting across two publications.

03

Technical accuracy

All factual claims must be accurate and verifiable. References to research papers, regulatory documents, NIST publications, or industry reports must link to original sources. We do not publish content containing false technical claims about cryptographic algorithms, quantum hardware capabilities, or regulatory requirements.

04

Quality

We review every submission for quality regardless of tier. Thin content, excessive bullet points replacing substantive analysis, keyword-stuffed writing, and raw AI output submitted without meaningful expert revision are declined at all tiers. If your content does not meet our quality bar, we request revisions before publishing.

05

Links

We review all external links in submitted content. Your designated target URLs in paid tiers receive the link attribute specified in your package. Additional links within the article body are reviewed for relevance and quality and may be removed or changed to no-follow if they point to low-quality or irrelevant destinations.

06

Promotional balance

A post that is 80 percent promotion and 20 percent value will be returned for revision. We do not publish press releases dressed as articles. Brand and product mentions are welcome where contextually natural but must be balanced by substantive content that stands alone as useful to the reader.

07

Images

All images must be original, licensed, or explicitly freely usable. Do not submit paid stock library images without license proof. Technical diagrams, architecture illustrations, and data visualizations are welcomed and encouraged.

08

AI assistance

AI-assisted drafts are acceptable. AI-generated content submitted without meaningful expert review and revision is not. If a submission reads like unedited AI output, it will be declined or returned.

Submission Process

Six steps from first enquiry to a live, promoted, permanently indexed article.

Step 1

Complete the submission form

Complete the submission form below with your contact details, topic proposal, and selected tier.

Step 2

Editorial review

Our editorial team reviews your submission within 2 to 3 business days and approves the topic, requests clarification, or declines with a brief note.

Step 3

Submit your draft or brief

For Starter, Contributor, Sponsored, and Premium Sponsored tiers, submit your full draft. For Native Editorial Partnership, submit your brief. For link insertions, provide your target URL and anchor text.

Step 4

Draft review and one revision round

We review the draft. One revision round is included in all tiers. We confirm payment details at this stage.

Step 5

Payment before publication

Payment is processed before publication. We accept Stripe, PayPal, and bank transfer for bundles.

Step 6

Publication and promotion

Article goes live and social promotion is published as specified in your tier.

Pitch Your Placement

Complete the form below and our editorial team will come back to you within 2 to 3 business days.

Loading submission form…

Frequently Asked Questions

Pricing, link attributes, turnaround, refunds, republishing, and our position on AI-generated drafts.

No. All placements on QubitChain.io are paid. The most accessible entry point is the Starter Placement at $49, which includes a published 800 to 1,200 word article and a do-follow author bio link. There is no unpaid tier.

A published post of 800 to 1,200 words at qubitchain.io/blog, one do-follow link in the author bio section, your name and a one-sentence bio displayed beneath the article, and a social share on publication day. There are no contextual links within the article body at this tier. If you want a link within the article body, the Contributor Package at $149 is the next step up.

The lowest price for a do-follow link within the article body is $299 (Sponsored Contribution). At $149 (Contributor Package), the in-body link is no-follow and the author bio link is do-follow. At $49 (Starter Placement), only the author bio link is do-follow and there are no in-body links.

Our core topics (post-quantum cryptography, quantum computing, blockchain security, DeFi, NIST PQC standards) are approved most quickly. We also welcome broader cybersecurity, PKI, cryptography, zero-knowledge proofs, AI and security, digital asset infrastructure, cloud security, fintech, regtech, privacy technology, hardware security, and quantum technology broadly. Cryptocurrency trading advice, NFT collection promotion, and content with no substantive technical angle are declined.

Yes. We broadened our scope to include cybersecurity broadly, blockchain and web3, DeFi, fintech, digital assets, AI and security, cloud security, cryptography, privacy technology, and hardware security. The requirement is that the content is technically substantive and relevant to an informed professional audience. We do not accept general consumer finance, lifestyle, or unrelated tech content.

The contextual do-follow links in paid tiers are standard HTML links without rel="nofollow" or rel="sponsored" attributes applied to the link itself. The page is labeled Sponsored Content at the Sponsored Contribution tier and above. If your campaign requires a specific link attribute configuration, discuss this before purchasing.

Yes. You provide your preferred anchor text at time of submission. We accommodate natural anchor text without restriction. If proposed anchor text is unnatural in context or heavily over-optimized in a way that would look jarring to a technical reader, we may suggest a minor adjustment but we do not unilaterally change your target URL.

Starter and Contributor packages: 7 to 10 business days from approved draft. Sponsored Contribution: 10 business days. Premium Sponsored Post: 7 business days. Native Editorial Partnership: 14 business days from brief receipt. Link Insertion: 5 business days.

If you pay and we decline your content after review without offering a viable revision path, you receive a full refund. If your content is declined because it does not meet editorial standards and you choose not to revise, you receive a full refund. If content is published, no refund is issued. Link insertion refunds are issued only if no contextually appropriate placement exists in any published article.

All published content is exclusive to QubitChain.io for 60 days from publication date. After 60 days you may republish on your own channels with a canonical link pointing back to the original QubitChain.io URL. Republishing without a canonical link or republishing before the 60-day window constitutes a breach of terms.

No, not as raw output. AI-assisted drafts where a human expert has substantially reviewed, edited, and added original thinking are acceptable. Unedited AI-generated content is declined at all tiers. We have a reasonably accurate eye for it and it reflects badly on both sides when AI content appears on a technically credible publication.

Yes. Agencies and organizations running ongoing campaigns can purchase individual packages separately or negotiate bundle pricing. The $999 bundle (3 Sponsored Contributions) and the $1,599 bundle (2 Native Editorial posts plus 2 link insertions) offer the best value for recurring placements.