Mine it
Spearmint Mining is pool infrastructure operated by Instant Access. You bring SHA-256 hardware and an address you control; it apportions block rewards and pays them to that address.
-
Spearmint Mining
Mine Spearmint
Endpoints, worker setup, difficulty and shares, the 1% pool fee, PPLNS, the daily payout run, and why you must use your own address.
Start here -
Spearmint Mining
How mining rewards work
From your hardware to a coinbase transaction to your address, step by step, with a worked example and the one arrow that does not exist: a deposit.
Read next -
Spearmint Mining
Transparency
Reward methodology, fee, payout mechanics, block maturity, source availability, network rules, and what is published where and how often.
-
Spearmint Mining
Support
What support can help with (connections, workers, payouts by address and block height) and what it cannot (keys, reversals, prices).
Run it
Spearmint the network is Bitcoin Core with changed chain parameters. Nobody owns it, including the company that directs the software. Running a node is how you stop having to trust anyone on this site.
-
Network
Run a Spearmint Core node
Build from source, configure it with RPC on localhost only, verify the rules yourself, and mine solo against it if you prefer that to a pool.
Independent -
Network
Network statistics
Block height, hashrate, difficulty, recent blocks, node counts, pool concentration. Every figure checkable against your own node. Live at launch.
-
Network
Economic policy
The 210 million cap, 50 SPMTC initial reward, halving ladder, and the 8% pre-launch acquisition, published before genesis so they can be argued with.
-
Network
Build log
The engineering record, failures included: exact commands, tracebacks, fixes, and the chain identity as it was chosen.
Check it
The service is designed so its functionality, not its disclaimers, keeps it a mining pool. These pages show the design and the reasoning, and they name what is still open for counsel.
-
Compliance
What the service does and does not do
Plain English. The custody statement, the guidance the design is measured against (FinCEN, Pennsylvania, OFAC), and how each product decision enforces the posture.
Plain English -
Developer docs
Architecture and value flow
Two diagrams — the work path and the reward path — the data model, operational keys, and the interfaces that deliberately do not exist.
-
Developer docs
Compliance-by-design matrix
Every feature scored against custody, money transmission, exchange, securities, OFAC, consumer protection and privacy, with the ones to omit marked.
-
Developer docs
Regulatory change control
The list of features no developer may add without a new legal review, and the process that enforces it.
Stop list -
Developer docs
Issues requiring attorney review
The open questions, blocking or otherwise, that must be closed before the pool opens. Pennsylvania's Act 7 of 2025 is first.
-
Developer docs
All developer documentation
Security, recordkeeping, terminology, onboarding workflow, dashboard wireframe.
The paperwork
First-pass drafts written for a mining service rather than copied from an exchange. They are for attorney review and are not in force.
-
Legal · draft
Mining Service Disclosure
The shortest complete statement of what the service is: mining, rewards apportioned, paid to your address, nothing held.
Draft -
Legal · draft
Mining Reward and Payout Policy
PPLNS, fee, maturity, orphans, the daily run, the threshold and why it exists, failed and withheld payouts.
Draft -
Legal · draft
Terms of Service
Contributing computation to pooled mining, rewards that depend on mining results, your address as your responsibility.
Draft -
Legal · draft
Privacy Policy
Payout addresses, worker names, share records, connection IPs, an optional email. Nothing else, and no cookies.
Draft -
Legal · draft
Sanctions and Restricted Persons Policy
A U.S. operator's OFAC obligations, the controls proportionate to what a no-KYC pool actually knows, and what happens on a match.
Draft -
Legal · draft
Risk Disclosure
No guaranteed rewards, orphans, delays, early-network attacks, no market, lost keys, regulatory change, and the cost of electricity.
Draft
Read it
Long-form articles with the primary sources linked: mining pools and the law, payout methods, forking Bitcoin Core, difficulty algorithms, solo mining, custody.
-
Article
Is a mining pool a money transmitter? FinCEN's §5.4 rule, explained
The one sentence in the 2019 guidance that separates a pool from a money transmitter, and the feature that flips it.
Start here -
Article
Pennsylvania Act 7 of 2025: what changed on 26 August 2025
The new licence requirement quoted, the carve-outs, the licensing bar, and why there is no mining exemption.
-
Article
PPLNS vs PPS: which payout method is safer for the operator?
Six payout methods compared, and why PPS makes the operator owe miners before a block exists.
-
Article
How to fork Bitcoin Core v29
Every chainparams field, the genesis-mining loop that broke on us, and what else breaks.
-
Articles
All articles
Difficulty algorithms, solo mining with ckpool, why no hosted wallet, and why "pending mining reward" is the right name.
The record
Decisions and changes, dated, with the reasoning attached.
-
Update
The mining service, designed in the open
Why the pool's architecture, policies and legal drafts are published before the pool exists, and what changed on this site as a result.
Sep 2026 -
Meeting notes
Security review and timeline, September 2026
AI-related concerns raised, testing extended, launch window under review with 2027 the working assumption.
-
Meeting notes
Comparison meeting, October 2025
Spearmint set against other chains on distribution, fee treatment, governance and risk, with the open questions recorded.
-
Updates
All updates
The running list. Fee or methodology changes appear here with 30 days' notice.
-
Email
Announcements by email
Launch decisions, mining-service status, policy changes. Email only, double opt-in, unsubscribe in every message.