did:dotbit

DotBit DID is a decentralized identifier method built on top of the .bit naming system, which operates on the Nervos blockchain. The method enables human-readable identifiers like satoshi.bit to be used as Decentralized Identifiers while mapping to various blockchain addresses and social profiles.

The core functionality combines blockchain-based naming with DID capabilities, allowing users to:

• Map human-readable names to multiple blockchain addresses (ETH, BTC, DOGE, etc.)
• Add verification methods and service endpoints
• Maintain control through blockchain-based ownership
• Integrate with Web3 and SSI ecosystems

A key differentiator is its focus on human-readable names while maintaining blockchain-level security. The system uses an annual fee mechanism, making identifiers renewable rather than permanent. This creates potential identifier recycling considerations that users must be aware of.

Important privacy considerations exist as .bit names are publicly visible on-chain and can link to personal information. When a DotBit DID is used, the entire on-chain history associated with the controlling blockchain address becomes visible, including transactions and NFTs.

Technical Implementation:

1. DID Generation and Structure

• Format: did:dotbit:<name>
• Example: did:dotbit:satoshi.bit
• Names must follow .bit naming conventions
• Custom records can be added for DID-specific functionality

2. Resolution Process

• Resolves through .bit infrastructure
• Automatically includes:
  • Default verification method for account owner
  • Default Web3 profile service
• Custom records processed for:
  • profile.w3c.did.service
  • profile.w3c.did.verificationMethod
  • profile.w3c.did.verificationRelationship

3. Key Management and Security

• Secured by underlying blockchain cryptography
• Verification methods tied to blockchain account ownership
• Supports multiple key types including:
  • EcdsaSecp256k1RecoveryMethod2020
  • X25519KeyAgreementKey2019

4. Unique Characteristics

• Human-readable identifiers
• Multi-blockchain address support
• Annual renewal requirement
• NFT-like transferability
• Automatic Web3 profile integration

5. Technology Stack

• Built on Nervos blockchain
• Implements W3C DID Core specification
• Uses .bit naming infrastructure
• Supports CAIP-10 blockchain account identifiers
• Integrates with Web3 service endpoints