Solana Learning.

Solana is a Layer 1 blockchain — a base-layer settlement network like Bitcoin or Ethereum, not built on top of another chain. It launched its mainnet beta in March 2020. Its design goal was unusual at the time: prioritize raw throughput and low fees over the modular "scale through L2s" strategy Ethereum chose.

Practically that means transactions on Solana settle in roughly 400 milliseconds, fees are typically a small fraction of a cent, and the chain can process tens of thousands of transactions per second under load. For traders, this matters because it changes what's possible — high-frequency strategies, cheap arbitrage, and meme coin launches at scale all live here because they couldn't anywhere else.

Solana was created by Anatoly Yakovenko, a former Qualcomm engineer who spent over a decade designing distributed systems for telecom networks. The whitepaper that became Solana started as a 2017 paper on Proof of History — a clever way to give a blockchain a verifiable clock without every node having to trust each other's timestamps.

He co-founded the Solana Foundation and Solana Labs with Raj Gokal and a small team out of San Francisco. The Foundation handles ecosystem grants and stewardship. Solana Labs builds the reference validator client (agave, formerly the Anza fork of the original Solana Labs client). A second client, Firedancer, is being built by Jump Crypto from scratch in C++ for performance and resilience.

Most chains scale by adding layers — sidechains, rollups, app-chains. Solana made a different bet: scale the base layer itself by attacking every bottleneck in a traditional blockchain pipeline at once. The promise: one chain, one mempool, one global state, all moving fast enough that you don't need to fragment liquidity across L2s.

That bet has trade-offs. Solana validators run on high-performance hardware (32+ core CPUs, 256+ GB RAM, 1 Gbps+ bandwidth). That's more demanding than Ethereum's sub-$1,000 home-node requirement. Critics call this centralization risk. Supporters call it the price of a chain that actually works for high-throughput apps. You can decide where you stand once you've seen what gets built here.

Most blockchains have a "what time is it?" problem. Validators are scattered across the world; their clocks drift; trusting any one node's timestamp creates an attack vector. Bitcoin "solves" it by having every node wait long intervals. Solana solves it differently.

Proof of History (PoH) is a continuous SHA-256 hash chain — each hash is the input to the next, like a runner counting steps. You can't fake the count without redoing every previous hash. The network then uses this provable sequence as a global clock. Validators don't have to gossip "what time is it"; they look at the PoH stream and know the order of events.

This sounds esoteric, but it's the foundation that enables every other Solana innovation — because once you have an agreed-upon sequence, you can pipeline, parallelize, and forward transactions without waiting for explicit consensus on ordering.

PoH gives you a clock; Tower BFT gives you finality. It's a Byzantine Fault Tolerant variant of PBFT optimized for the PoH timeline. Validators vote on the canonical fork, and votes are doubled in weight (a "lockout") each time they're confirmed — meaning the longer a fork stands, the more economically painful it becomes to switch off it.

In practice this means transactions reach "confirmed" status in roughly half a second and "finalized" (super-majority committed) in 12-19 seconds.

The EVM processes transactions one at a time, like a single checkout lane at a grocery store. Solana's Sealevel runtime opens dozens of lanes. The trick: Solana transactions must declare upfront which accounts they read from and write to. The runtime can then look at a batch of transactions, identify which ones touch overlapping state, and run all the non-overlapping ones in parallel.

Why you care as a trader: this is why Solana doesn't grind to a halt during a popular meme coin launch the way Ethereum does during a hot NFT mint. Two unrelated trades on two unrelated tokens never block each other.

• Gulf Stream is Solana's mempool-less transaction forwarding. Validators forward transactions directly to the next leader before the leader's slot starts. There's no global mempool sitting around waiting — which reduces confirmation time and limits one type of MEV.
• Turbine is the block-propagation protocol. Instead of broadcasting every block to every validator (which would saturate bandwidth), the leader breaks the block into small packets and shares them through a tree-shaped network. Each validator only needs to talk to a small number of neighbors.

Solana doesn't pick block producers randomly per block. At the start of each epoch (~2 days, 432,000 slots), the leader schedule is calculated for the entire epoch in advance. Each slot is 400ms. Every validator knows exactly who's producing every slot — which is why Gulf Stream can forward transactions ahead of time.

This determinism is also why priority fees work the way they do on Solana: when blocks are full, the leader of that slot picks the highest-paying transactions first. If you're trading during a hot launch, paying a higher priority fee literally changes which block your transaction lands in.

SOL launched with an initial supply allocated across the team, foundation, investors, and community. New SOL is created via inflation, which started at 8% per year and decreases by 15% each year until it reaches a floor of 1.5% per year. That inflation pays validators for staking.

Counter-balancing the inflation: 50% of every transaction fee is burned. The other 50% goes to the validator who produced that block. So when the chain is busy (lots of fees), the burn rate climbs and net inflation drops.

You stake SOL by delegating it to a validator. You don't give up custody — your SOL stays in your wallet, but it gets locked behind a stake account that earns yield (typically 6-8% APY). The validator collects the yield from inflation, takes a small commission (usually 5-10%), and forwards the rest to you.

Stake operates on epochs:

• Activating — you delegate; the stake becomes active at the start of the next epoch (~2 days max).
• Active — you earn yield at the end of each epoch.
• Deactivating — you request to undelegate; takes one epoch to fully unwind before SOL becomes liquid.

If you want yield and liquidity, the answer is liquid staking (covered in Module 7).

Validators earn money three ways:

• Inflation rewards — paid by the protocol per epoch.
• Priority fees — half of every priority fee on transactions in their block.
• MEV — value extracted from re-ordering, including or excluding transactions. On Solana this mostly flows through Jito, an MEV-aware validator client and tip distribution layer.

Jito introduced "bundles" — atomic groups of transactions where searchers (bots) tip the leader to include their bundle ahead of others. If you've ever seen "Jito tip" in a transaction, that's an MEV searcher paying for priority placement.

SOL trades 24/7 on every major exchange. Its price tends to correlate with two things: BTC's broader trend, and activity on the Solana chain (specifically meme coin volume, which drives priority fees and validator revenue).

Watch REV (Real Economic Value) — total fees + tips paid on Solana per day. When REV climbs, SOL usually follows within days or weeks. When REV craters, SOL is on borrowed time. Tools like Blockworks Research and DefiLlama track this.

When you create a wallet, you'll be shown a 12 or 24-word seed phrase. That phrase is the master key. Anyone with it can drain everything, on every device, forever. Anyone who loses it loses access permanently.

• Write it down on paper or stamp it into metal. Never take a photo, never type it into your computer outside the wallet's recovery flow.
• Store two copies in two physical locations. One at home, one with someone you trust or in a safe deposit box.
• Never share it with anyone. Ever. No support agent, no airdrop site, no "wallet verifier." Anyone asking is stealing.

On Ethereum, your wallet just "has" any ERC-20 token; the balance is stored on the token contract. On Solana, every token you own lives in its own token account — a separate on-chain account, owned by your wallet, that costs about 0.00204 SOL in rent to create.

Two practical implications:

• Receiving a brand-new token costs you a tiny amount of SOL (your wallet creates the account).
• Once you sell out completely, you can close the token account to reclaim that 0.00204 SOL. Phantom and Solflare both have one-click "burn dust" tools that close all your zero-balance accounts.

Solana approvals are different from Ethereum. There's no "infinite approval" exploit pattern — each token transfer requires you to sign that specific transfer. But you can still get drained by:

• Phishing sites that mimic real DEXs and trick you into signing a transaction that drains your wallet.
• Malicious dApps that bury a "transfer all SOL to attacker" instruction inside a normal-looking transaction.
• Compromised browser extensions — never install random Chrome extensions while you're trading.

On Ethereum, smart contracts are stateful — code and data live together. On Solana, code (a program) and data (an account) are separate. Programs are stateless executables; they read from and write to accounts they're given as input.

This separation is what enables Sealevel parallel execution: the runtime can see exactly which accounts a transaction will touch and schedule it accordingly.

Almost every fungible token on Solana — USDC, $PIGEON, BONK, every meme coin — is created by a single program: the SPL Token Program. It's like one universal ERC-20 contract that every token shares. When you create a new token, you're not deploying a new contract; you're calling the SPL Token program with a "mint" instruction and getting back a unique mint address.

This is why Solana token launches are so fast and cheap: there's no contract deployment step. You just create a new mint, optionally fund liquidity, and you're trading.

Every SPL token has up to two important authorities:

• Mint authority — the address that can create more of the token. If this is still active, the supply can be inflated infinitely. Renouncing (setting it to null) is mandatory for any serious project.
• Freeze authority — the address that can freeze any holder's tokens. Used legitimately by USDC (so it can comply with sanctions). Used as a rug vector by every scam token that wants to lock you out of selling.

Token-2022 (also called Token Extensions) is a newer SPL token program that adds optional features like transfer hooks, transfer fees, confidential transfers, and metadata pointers. Powerful, but also a new surface area for sneaky tokenomics. Always check.

A Program Derived Address (PDA) is an account whose address is deterministically derived from a program's ID and a "seed." PDAs have no private key — only the program that derives them can sign transactions on their behalf.

In practice: when a DEX pool stores its liquidity in an "escrow" account, that account is a PDA owned by the DEX program. The user can't drain it; only the program logic can. This is the building block for trustless on-chain mechanics — escrows, vesting contracts, lending protocols, AMM pools.

Jupiter isn't a DEX itself; it's a routing aggregator that splits your trade across every other DEX to find the best price. When you click "Swap" in Phantom, it's almost certainly using Jupiter under the hood. Jupiter has become so dominant that other Solana DEXs measure their relevance by their share of Jupiter's routed volume.

Beyond aggregation, Jupiter offers limit orders, DCA (dollar-cost-average), perpetuals (Jupiter Perps), and a launchpad. For most traders, jup.ag is the front door to the chain.

Raydium is the original Solana AMM. It runs both classic constant-product pools (x*y=k, like Uniswap V2) and concentrated liquidity pools (CLMM, like Uniswap V3). Most meme coins that "graduate" from a launchpad migrate their liquidity to a Raydium pool — making it the dominant venue for meme coin trading.

Raydium's CPMM pools are the standard graduation target for Pump.fun launches. Its CLMM pools are where active LPs tighten ranges to capture more fee per dollar.

Orca pioneered the Whirlpools CLMM design on Solana — fee-tier pools where LPs choose price ranges. Clean UX, deep stablecoin pools.

Meteora built DLMM (Dynamic Liquidity Market Maker) — bin-based concentrated liquidity that adapts to volatility. It's become the preferred venue for sophisticated meme coin LPs because the bin structure gives finer control over inventory.

When you submit a swap on Jupiter, here's what happens:

• Your wallet builds a transaction with a route — usually 1 to 4 hops across different pools.
• The transaction is sent to an RPC node (your wallet's connection to the chain).
• The RPC forwards it to the next leader (Gulf Stream).
• The leader includes it in a block; Sealevel executes it.
• If the price moved beyond your slippage tolerance while the tx was in flight, the swap reverts and you lose only the fee.

Lending markets let you deposit assets to earn interest, or borrow against your collateral to free up capital. The major Solana venues:

• Kamino — the largest, with vaults that auto-compound and one-click leverage strategies.
• MarginFi — pure isolated lending; clean and simple.
• Solend — original Solana lending protocol; permissionless pools.
• Drift — combines spot lending with on-chain perps.

Each operates with collateralization ratios — you can typically borrow 50-80% of your deposit's value, depending on the asset. Drop below the maintenance threshold and you get liquidated (your collateral is sold to repay the loan, with a penalty).

Perpetuals ("perps") are leveraged derivatives with no expiration. You can long or short an asset with up to 50x leverage. The funding rate (a small fee paid between longs and shorts) keeps the perp price tethered to the spot price.

• Jupiter Perps — pool-based; you trade against a liquidity pool of SOL/ETH/BTC/USDC.
• Drift — order book + AMM hybrid; deeper market for SOL and altcoins.
• Zeta — the closest thing on Solana to a centralized derivatives exchange UX.

Liquid Staking Tokens (LSTs) let you stake SOL and receive a tradable token in return that represents your staked position plus accumulated yield. You earn the staking yield without losing the ability to use your capital in DeFi.

• JitoSOL — captures MEV rewards on top of base staking yield. Highest liquid yield on Solana.
• mSOL (Marinade) — original liquid staking token; deepest DeFi integration.
• bSOL (BlazeStake) — community-owned, governance via BLZE token.
• INF (Sanctum) — meta-LST; a basket of underlying LSTs.

Every lending market and perp exchange needs a price feed. Solana's two big oracle networks are Pyth (built on Solana, pull-based) and Switchboard (push and pull). When you see a "price feed paused" notice, it's usually one of these.

Stablecoin landscape:

• USDC — the dominant stable, native on Solana, issued by Circle.
• USDT — bridged + native; used heavily for cross-chain flows.
• PYUSD — PayPal's stablecoin; Solana-native.
• USDS (Sky/MakerDAO) — decentralized; pulled into Solana via bridges.

Solscan is the default. Paste any address (wallet, token, transaction) and you'll get full history, holder distribution, transfer activity, and program interactions. SolanaFM presents the same data with a different UI and better account labeling. XRAY (Helius) is the easiest to read for beginners — it translates raw program calls into plain English.

Dexscreener aggregates DEX prices, liquidity, and volume across every pool for every token. The default chart view for most traders. The "Trending" tab is where new meme coins appear before mainstream X notices.

Birdeye goes deeper — top traders, copy-trading, holder transfers, security checks. If Dexscreener tells you "this token exists and is moving," Birdeye tells you "here's who's moving it."

Bubblemaps visualizes holder relationships. If 30 wallets each hold 1% of supply but they all funded each other from a single source, Bubblemaps will show them clustered in a single bubble. That's a sniper team. Pretend you didn't see the chart and you'll buy their exit liquidity.

Cabal and similar tools provide holder distribution scoring — how concentrated the supply is, how recently top wallets got in, whether the dev wallet is still holding.

Three reasons:

• Fees. Launching a token on Ethereum costs $50-$500 in gas. On Solana it's pennies. That difference enables a long tail of throwaway launches that simply can't exist on Ethereum.
• Speed. Sub-second confirmations make sniper bots, KOL plays, and rapid liquidity rotations possible.
• The launchpad layer. Pump.fun, Moonshot, Letsbonk and others built one-click token creation, complete with bonding curves and migration to Raydium. No other chain has this density of launchpad infrastructure.

Pump.fun is the dominant launchpad. Anyone can create a token in 30 seconds for a few cents. The token starts on a bonding curve — a deterministic formula that sets price based on supply purchased. As more people buy, the price rises along the curve.

When the bonding curve fills (typically around $69k–$100k market cap), the token "graduates" — its remaining supply and liquidity migrate to a Raydium pool, the LP gets burned, and the token enters the open market. About 1-2% of Pump.fun launches graduate.

Meme coins on Solana aren't just shitposts — collectively they generate most of the chain's fee revenue, drive the bulk of new wallet creation, and pay for validator infrastructure through priority fees and Jito tips. When meme coin volume drops, Solana's REV drops, validator income drops, and SOL price tends to soften.

Understanding this loop helps you read the chain like an analyst, not a tourist: meme volume isn't separate from "real" Solana activity — it largely is Solana activity right now.

The opening moments of a meme coin's life are dominated by sniper bots — automated buyers that grab the first 50-1000 transactions on any new token. They're not retail, they're not "lucky degens" — they're well-capitalized operations with co-located RPCs and signed pre-built transactions.

You will not beat them. What you can do: wait 30-90 seconds, then check Bubblemaps. If the early holders are clustered, snipers are positioning to dump on retail. If holders are diverse, the launch is "clean" — at least mechanically.

When a Pump.fun token graduates to Raydium, its LP is burned and price discovery shifts. Two patterns dominate the next 5-30 minutes:

• Send — the token rips because the bonding curve's auto-sell pressure is gone, and migration removes the last "wall" of LP. Bullish if the chart was climbing into migration.
• Dump — early bonding curve buyers used migration as an exit ramp; price collapses. Bearish if the chart had already topped pre-migration.

The clue to which is which: volume into the migration. Steady accumulation usually means send. Distribution wicks pre-migration usually mean dump.

A "KOL" (Key Opinion Leader) is an X account with significant reach. KOL plays come in two flavors:

• Paid shills — KOL gets a wallet allocation in exchange for a tweet. Easy to spot: thinly substantive post, suspicious replies, dev wallet sends to KOL wallet right before the post.
• Organic calls — KOL actually likes the project, posts about it, the flock follows. These move price too, but the followthrough lasts longer because the audience is aligned.

Community catalysts include CEX listings, partnership announcements, technical milestones, and viral memes. The pattern: pump on the news, retrace, and either build new highs (real catalyst) or fade entirely (rumor).

Most meme coins follow a recognizable cycle:

• Hour 0-1 — launch. Sniper accumulation, retail FOMO.
• Hour 1-24 — chart-following. KOL calls, viral spread, peak attention.
• Day 1-3 — distribution from early holders, cooling volume.
• Day 3-7 — survival check. Either a community forms or the chart bleeds.
• Day 7+ — surviving meme coins build a base, get CEX listings, attract LP commitments. Most don't make it this far.

• 1. Mint authority renounced. If the team can mint more, it's not a fixed supply. Unrenounced = pass.
• 2. Freeze authority renounced (or not present). If they can freeze your wallet, they can lock you out of selling.
• 3. LP locked or burned. If the team controls the liquidity pool, they can pull it. Look for a Streamflow lock, a Team.Finance lock, or an outright LP burn.
• 4. Top 10 holders < 25% of supply (excluding LP). Higher concentration = exit risk.
• 5. No bubble cluster on Bubblemaps. If 20 wallets all funded from the same source hold 30% of supply, it's a sniper team.

Pass any of these and you're already filtering 80% of the obvious scams. None of this protects you from a slow-bleed soft rug, but it eliminates the hard rugs that drain in 60 seconds.

• Hard rug — dev pulls liquidity. Token goes to zero in one transaction. Avoidable with the LP-lock check.
• Soft rug — dev sells their allocation slowly while pretending to "build." The chart bleeds for days. Avoidable by checking dev wallet activity on Solscan.
• Honeypot — token can be bought but not sold (freeze authority active). Avoidable with the freeze-authority check.
• Mint exploit — dev (or a hacker) mints trillions of new tokens and dumps. Avoidable with the mint-authority check.
• Sniper exit — coordinated team holds 50% of supply, dumps in unison. Avoidable with Bubblemaps.

A sandwich attack is when an MEV searcher sees your buy in the mempool, front-runs it (buying just before you), lets your buy push the price up, then dumps just after. You pay an artificially worse price; the attacker keeps the difference.

Mitigations:

• Use Jupiter's MEV protection mode when available (routes through private RPC).
• Lower your slippage tolerance — sandwich profits scale with slippage.
• Use a Jito bundle-aware aggregator for large trades.
• Split big orders into smaller chunks to reduce per-trade impact.

Not every loss is a scam. A meme coin can have everything check out — locked LP, burned mint, clean holders — and still go to zero because the community died. No new buyers, no new memes, no narrative refresh, slow distribution from early holders. The chart bleeds for weeks.

Spot the slow rug:

• Holder count flat or declining for >7 days.
• Volume trending down session over session.
• X engagement dropping (replies, RTs, raid activity).
• Dev posting less, or posting only when price moves.

The cure is sometimes a CEX listing, sometimes a viral catalyst, sometimes nothing. When the chart starts bleeding consistently and the community has gone quiet, get out — survivor bias is more expensive than humility.

Solana doesn't have a native order book like a CEX. Limit orders are implemented at the application layer:

• Jupiter Limit Orders — set a target price; Jupiter watches the chain and executes when the price is hit. Free, fully on-chain.
• Jupiter DCA — buy/sell a fixed amount over a chosen time window. Good for accumulating a position without market impact.
• Stop losses — most terminals (Photon, Axiom, BullX) implement off-chain stops by watching prices and submitting market sells when triggered. Not bulletproof — if the chain congests, your stop may not fire in time.

Copy trading lets you mirror another wallet's trades automatically. Birdeye, Photon, and several Telegram bots support this. Use case: identify a wallet that's consistently profitable on launches, mirror them with a small allocation, evaluate their edge over a few weeks.

Portfolio tracking — Step Finance, Sonar, and Phantom's portfolio tab give you a unified PnL view across all your tokens. Essential for tax season; useful for sanity checks ("is this 10x actually offsetting my five 50%-down bags?").

Pick a portfolio percentage you can lose entirely on any single meme coin trade. For most people that's 1-3%. If you find yourself sizing up because "this one is different," you've already lost discipline.

Sizing rules of thumb:

• Tier 1 (blue chips like SOL, JUP, BONK) — up to 25% per position.
• Tier 2 (established meme coins, 6+ months old) — up to 5% per position.
• Tier 3 (new meme coins, <1 week) — 1-2% per position max. Many of these will go to zero.

The most common failure mode in meme coin trading isn't entry — it's exit. Have a plan before you buy:

• 2x — sell 25-50% of position. Recover initial. From here, you're playing with house money.
• 5x — sell another 25%. The remainder is your moonshot.
• 10x and beyond — trail with a stop or scale out further. Don't let a 10x become a 1x.

Every swap on Solana is a taxable event in most jurisdictions. The chain doesn't track this for you. Tools that do:

• Koinly — broad multi-chain support, generates IRS-ready forms.
• CoinTracker — clean UI, integrates with TurboTax.
• Cropper — Solana-native, very competitive on fees.

Wire up your wallets at the start of the year. Trying to reconstruct 800 trades in April is a special form of suffering.

The best meme coin traders aren't the ones with the best models. They're the ones who can sit out a hot launch when it doesn't fit their criteria. Three rules:

• FOMO is information. If you're feeling it strongly, the move is probably already half over.
• One trade per day, max, when you're starting. Quality over quantity.
• Journal every trade — entry reason, exit reason, lesson. Without a journal, you'll repeat your mistakes forever.

In February 2026, a random Pump.fun dev launched a token in @level941's name without permission. The dev controlled supply and dangled six figures in creator fees to coerce a hero-pump tweet from him. He refused.

Instead of cashing out the bribe or letting holders get drained, @level941 took the project over by principle — providing proper sell-side liquidity himself, absorbing the extraction, and stabilizing the token.

From the security checklist in Module 11, here's what was done — and shipped publicly:

• Mint authority renounced. No new tokens can ever be minted.
• Freeze authority renounced. No wallet can be locked.
• LP locked permanently. No rug vector.
• Atomic Sell-to-Burn Router — 3,777 lines of Rust, written by hand, that takes a portion of every sell and burns the proceeds. Increases scarcity over time, with on-chain verification.
• HashEx audit shipped publicly.
• Community-owned audit multisig funded — so future audits aren't paid for by the team alone.

Whether you hold $PIGEON or not, the playbook is the lesson:

• You can read every authority on-chain in 60 seconds. Do it before you buy anything.
• Locked LP and renounced authorities are the floor, not the ceiling. The next question is: does this project actually have community and infrastructure?
• The flock is the project. Tokenomics matter, audits matter — but the long-term winners are the tokens with people who keep showing up.