BSP Domain System — .bsp

Version 0.2 | Ambrósio Institute

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Overview

Every BEO and IEO in the BSP ecosystem is identified by a human-readable .bsp domain — a permanent, sovereign biological address registered on the Arweave blockchain via the DomainRegistry smart contract.

The .bsp namespace is managed by the Ambrósio Institute. Domain assignment and uniqueness are enforced on-chain — not by a central server.

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Domain Types

Type	Format	Example	Cost	Transferable
Individual	firstname.bsp	andre.bsp	Free	Never
Individual (privacy)	initials-year.bsp	am1985.bsp	Free	Never
Individual (anonymous)	[random].bsp	b7k3m.bsp	Free	Never
Professional	dr.name.bsp	dr.carlos.bsp	Paid, permanent	Never
Institutional	institution.bsp	fleury.bsp	Paid, annual	Yes
Research	org.topic.bsp	usp.longevity.bsp	Paid	No
Sub-institutional	name@institution.bsp	dr.silva@hcor.bsp	Under hospital fee	No

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Domain Rules

Permanence

Individual domains are permanent and non-transferable. Once andre.bsp is claimed, it exists forever on Arweave and cannot be transferred to another person or deleted.

Uniqueness

The DomainRegistry smart contract guarantees that each .bsp domain can only exist once. No two entities can hold the same domain.

Case Insensitivity

All .bsp domains are stored and resolved in lowercase. Andre.bsp and andre.bsp refer to the same domain.

Reserved Namespaces

The following prefixes are reserved by the Ambrósio Institute:

• bsp.* — Protocol infrastructure
• institute.* — Institute operations
• registry.* — Registry services
• test.* — Testing environments

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Domain Resolution

// Resolve a .bsp domain to a BEO or IEO
import { DomainResolver } from 'bsp-sdk'

const resolver = new DomainResolver()

// Resolve individual domain
const beo = await resolver.resolve('andre.bsp')
// Returns: { type: 'BEO', beo_id: '550e8400-...', public_key: 'ed25519:...' }

// Resolve institutional domain
const ieo = await resolver.resolve('fleury.bsp')
// Returns: { type: 'IEO', ieo_id: '9f1a2b3c-...', ieo_type: 'LABORATORY', ... }

// Check availability
const available = await resolver.isAvailable('newname.bsp')
// Returns: true | false

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Domain Transfer

Institutional domains (type institution.bsp) can be transferred to a new owner entity. Individual domains are permanent and non-transferable — this section applies only to institutional domains.

Transfer Flow

Current owner initiates transfer
       │
       ▼
  TransferRequest created (status: PENDING)
       │
       ▼
  New owner accepts transfer (signs with their key)
       │
       ▼
  DomainRegistry updates ownership on-chain
       │
       ▼
  Transfer complete — old owner loses all domain privileges

Transfer Schema

DomainTransferRequest {
  domain:         string       // The .bsp domain being transferred (e.g. "fleury.bsp")
  current_owner:  string       // Current owner's IEO ID
  new_owner:      string       // New owner's IEO ID
  reason:         string       // Human-readable justification
  initiated_at:   ISO8601
  expires_at:     ISO8601      // Transfer request expires after 30 days
  signature:      string       // Current owner's Ed25519 signature
  arweave_tx:     string       // On-chain record
}

DomainTransferAcceptance {
  domain:         string
  new_owner:      string       // New owner's IEO ID
  accepted_at:    ISO8601
  signature:      string       // New owner's Ed25519 signature
  arweave_tx:     string       // On-chain record of completed transfer
}

Transfer Rules

• Only institutional domains are transferable (individual, professional, research, and sub-institutional domains are non-transferable)
• The current owner must initiate the transfer — the new owner can only accept, not request
• Transfer requests expire after 30 days if not accepted
• Both the initiation and the acceptance are recorded permanently on Arweave
• Active consent tokens granted to the old owner's IEO are automatically revoked upon transfer completion
• The Governance contract can block transfers for suspended IEOs

SDK Usage

import { DomainManager } from 'bsp-sdk'

const manager = new DomainManager({ ownerKey: currentOwnerPrivateKey })

// Initiate transfer
const transfer = await manager.initiateTransfer({
  domain: 'oldlab.bsp',
  newOwner: 'new-lab-ieo-id',
  reason: 'Company acquisition — laboratory assets transferred'
})

// New owner accepts
const newManager = new DomainManager({ ownerKey: newOwnerPrivateKey })
await newManager.acceptTransfer(transfer.domain)

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Social Recovery Protocol

If a BEO holder loses their private key, the guardian network enables recovery.

Setup

// At BEO creation or anytime after
const recovery = new RecoveryManager(beoId)

await recovery.addGuardian({
  name: 'Maria',
  contact: 'maria@example.com',   // Encrypted and stored on-chain
  public_key: 'ed25519:...'
})

// Set recovery threshold
await recovery.setThreshold({ required: 2, total: 3 })

Recovery Flow

1. Holder loses device and/or private key
2. Holder contacts 2 of 3 guardians
3. Each guardian submits a signed confirmation on-chain
4. After 2 confirmations: new key pair can be registered
5. Old key is revoked; new key is associated with the domain

// Guardian submits confirmation
const recovery = new RecoveryManager(beoId)
await recovery.confirmRecovery({
  guardian_key: guardianPrivateKey,
  new_public_key: recoveryPublicKey,  // Holder's new key
  request_id: recoveryRequestId
})

Security Properties

• No single guardian can restore access alone
• No central server is involved
• The recovery protocol executes on-chain
• The request is time-limited (72 hours default)
• All recovery events are permanently auditable

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Seed Phrase Backup

As a last resort (all guardians unavailable), the 24-word seed phrase provides emergency recovery.

The seed phrase is generated at BEO creation and must be written down and stored offline by the holder. The BSP system stores only a cryptographic hash — never the phrase itself.

Warning: If the seed phrase is lost and no guardians are available, access to the BEO cannot be recovered by anyone — including the Ambrósio Institute. Store it safely.

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Ambrósio Institute · ambrosioinstitute.org · biologicalsovereigntyprotocol.com