Não-custodial
Controle total do usuário.
Non-custodial (self-custody) is the core ethos of crypto. No third party can freeze your funds or prevent you from transacting as long as you have your private keys.
graph LR
Center["Não-custodial"]:::main
Rel_custodial_wallet["custodial-wallet"]:::related -.-> Center
click Rel_custodial_wallet "/terms/custodial-wallet"
Rel_crypto_wallet["crypto-wallet"]:::related -.-> Center
click Rel_crypto_wallet "/terms/crypto-wallet"
Rel_nft["nft"]:::related -.-> Center
click Rel_nft "/terms/nft"
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🧒 Explique como se eu tivesse 5 anos
Imagine you and your friend have two tin cans connected by a [string](/pt/terms/string). If you pull the string tight and talk, you can hear each other perfectly. That string is like an Ethernet cable. It's a direct, physical connection that makes sure your messages get to the other side fast and clear, without getting lost in the wind.
🤓 Expert Deep Dive
Technically, Ethernet operates at Layer 1 (Physical) and Layer 2 (Data Link) of the OSI model. It uses 'MAC Addresses' to identify unique hardware and 'CSMA/CD' (Carrier Sense Multiple Access with Collision Detection) to manage data flow on older shared networks—though modern 'Full-Duplex' switches have largely eliminated collisions. An Ethernet frame consists of a Preamble, Destination/Source MAC addresses, EtherType, the Data Payload, and a 'Frame Check Sequence' (FCS) for error detection. The standard MTU is 1500 bytes. As we move to 400Gbps and beyond, Ethernet remains relevant by adapting its modulation techniques while maintaining the same frame format that has worked since the 1970s.