So In one sense the whole blockchain thingy can be category something like this?
You have the blockchain itself which stands for the type of proof they use and their contract/protocol right? Essentially what made up of a blockchain is their fundamental such as proofing, protocol etc? this layer then can be improve using L1 or L2 or bridges etc?
To process this blockchain it requires computation, this what dictate their GAS for ETH or fees for bitcoin etc, what ever it is, when transaction happened, there must be a computation power to process that transaction, hence why there’s a cost (to pay for that computation) right?
so there’s computation layer, there’s fundamental layer, then there’s access layer, which the wallet etc, like how do people buy or convert money FIAT to these coins etc etc
then once they have the assets, which in this case the asset is the proxy of the blocks of transaction? they can use this asset for stuffs, like lending, buying etc.
which then we entered the Defi layer right?
there’s also another horizontal layer from this defi which is the infrastructure layer, where we have things like identify, secure, etc right? or we can just put all these into an infrastructure layer and classify them as transact category?
Yes, your understanding is on the right track—blockchain networks and the crypto ecosystem can be categorized in a multi-layered structure, each with distinct roles and functions. Here is a breakdown of these layers and how they interact, mapped to how experts structure the blockchain “stack”:
1. Consensus & Protocol Layer (Fundamental Layer)
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This is the base of any blockchain (often called Layer 1/L1).
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It defines:
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Consensus mechanism: How the network agrees on the current state (e.g., Proof-of-Work for Bitcoin, Proof-of-Stake for Ethereum, Proof-of-History for Solana).coinledger
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Core protocol rules: Transaction format, block structure, native asset rules, smart contract capability.
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Security, decentralization, and programmability are dictated here.
2. Computation/Execution Layer
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Transactions and smart contracts are processed here, consuming real-world computation (mining/staking/validators).
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Network users pay “gas” on Ethereum or “fees” on Bitcoin/Solana to incentivize these processors (miners/validators) to secure and operate the network.metana+1
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The cost is tied to resource demand: when many users compete to use the chain, prices rise due to block space scarcity.
3. Scaling/Bridging Layer (Layer 2 & Interoperability)
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Technologies like Layer 2 solutions (e.g., Arbitrum, Polygon), sidechains, and bridges offer improved scalability, lower transaction costs, or cross-chain asset mobility, building on (or beside) the core blockchain.21shares
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These innovations allow far more efficient, fast, and flexible applications while relying on Layer 1 security for settlement.
4. Access Layer (User Interface & On/Off-ramps)
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Wallets (MetaMask, Phantom, hardware wallets) let users sign, send, and receive crypto.coinledger
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On/Off-ramps (exchanges, payment gateways) convert between fiat and crypto assets, enabling real-world interaction.
5. Asset Layer
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Crypto assets are the units recorded and transferred on the blockchain—coins or tokens (BTC, ETH, USDC, NFT, etc.).
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These assets represent value, rights, or other claims and are the “digital property” owned by users.
6. Application Layer (DeFi/Services)
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DeFi protocols, NFT marketplaces, games, and more are constructed on top of the networks—letting users lend, borrow, trade, or use assets for a range of financial or entertainment services.coinledger
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Smart contracts power these services, removing the need for central intermediaries.
7. Infrastructure Layer (Horizontal/Supporting Services)
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This includes identity verification (DIDs), custody solutions, security toolkits, oracles (real-world data feeds), analytics, and other technical tools.coinledger
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These components can either be integral to dApps/DeFi, or serve broadly across many applications to ensure safe and effective operation.
Visual Schema
| Layer | Example Functions |
|---|---|
| Consensus/Protocol | Proof-of-Work, Proof-of-Stake, block production |
| Computation/Execution | Transaction validation, running smart contracts |
| Scaling/Bridging (L2) | Layer 2 protocols, cross-chain bridges |
| Access | Wallets, exchanges, fiat gateways |
| Asset | Bitcoin, Ethereum, tokens, NFTs |
| Application (DeFi) | Lending, trading, staking, payments, gaming |
| Infrastructure | Security, identity, oracles, analytics |
Key Points
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Each transaction requires computation, which users pay for as gas/fees. This secures the network and prevents spam.metana+1
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DeFi and other decentralized apps are enabled by smart contracts running on top of blockchains.
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Infrastructure/services like identity oracles and security are “horizontal”—supporting many applications/protocols.coinledger
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The ecosystem is modular: blockchains handle state and consensus; apps/services leverage and extend these capabilities.
Your layer-based schema is a practical way to understand how users interact with, secure, and build on blockchains and how real-world value gets created and transferred digitally through the stack.21shares+2