BSV Standards & Protocols Reference

Comprehensive index of BSV blockchain standards, protocols, and specifications.

Quick Reference

Category	Standards	Description
BRCs	BRC-1 to BRC-100+	Official BSV Request for Comments
BitCom	AIP, MAP, B, BAP, SIGMA	Data protocols using Bitcoin addresses as prefixes
Tokens	BSV-20, BSV-21, STAS	Fungible token standards
Ordinals	1Sat Ordinals	NFT inscriptions on BSV
Identity	Paymail, BAP	Identity and addressing standards
Off-Chain	bitcoin-auth, bitcoin-backup, bitcoin-image	Authentication, backup, URL standards
Data Schema	Bitcoin Schema, Ord Schema	Standardized on-chain data structures

Official BRC Standards

Reference: https://bsv.brc.dev/

Key Derivation (BRC-42, BRC-32, etc.)

BRC	Name	Description
BRC-32	BIP32 HD Keys	Hierarchical deterministic key derivation
BRC-42	Type42 Derivation	Modern ECDH-based key derivation
BRC-43	Protocol IDs	Security levels and key ID conventions
BRC-69	Key Linkage	Revealing key associations
BRC-72	Linkage Protection	Encrypted linkage transmission

Wallet Standards (BRC-1, BRC-2, etc.)

BRC	Name	Description
BRC-1	Transaction Envelope	Standard transaction format
BRC-2	Encryption	Message encryption standard
BRC-29	Paymail	Human-readable payment addresses

Script Templates (BRC-48, etc.)

BRC	Name	Description
BRC-48	Pay to Push Drop	Token output template
BRC-100	Wallet Toolbox	Standard wallet implementation

Overlay Networks (BRC-22, etc.)

BRC	Name	Description
BRC-22	Overlay Networks	Network topology standard
BRC-31	Authrite	Authentication protocol

BitCom Protocols

Data protocols using Bitcoin addresses as OP_RETURN prefixes.

AIP (Author Identity Protocol)

Prefix: 15PciHG22SNLQJXMoSUaWVi7WSqc7hCfva
Signs content with Bitcoin addresses for verifiable authorship. Similar to Sigma protocol but does not require inputs.

OP_RETURN | <data> | AIP_PREFIX | "BITCOIN_ECDSA" | <address> | <signature>

Use cases: Content authentication, author verification

MAP (Magic Attribute Protocol)

Prefix: 1PuQa7K62MiKCtssSLKy1kh56WWU7MtUR5

Key-value metadata storage on-chain.

OP_RETURN | MAP_PREFIX | "SET" | "key1" | "value1" | "key2" | "value2"

Commands: SET, DEL, ADD, SELECT

Use cases: Metadata, tags, attributes, social data

B (Binary) Protocol

Prefix: 19HxigV4QyBv3tHpQVcUEQyq1pzZVdoAut

Arbitrary file storage on-chain.

OP_RETURN | B_PREFIX | <data> | <media-type> | <encoding> | [filename]

Use cases: Images, documents, any binary data

BAP (Bitcoin Attestation Protocol)

Prefix: 1BAPSuaPnfGnSBM3GLV9yhxUdYe4vGbdMT

Identity attestation and management.

OP_RETURN | BAP_PREFIX | "ID" | <identity-key> | <address> | [attributes]

Use cases: Identity creation, attestations, key rotation

SIGMA

Prefix: SIGMA

Transaction-bound signatures for OP_RETURN data.

OP_RETURN | <data> | SIGMA | <algorithm> | <address> | <signature> | <vin>

Algorithms: BSM (Bitcoin Signed Message), BRC-77 (SignedMessage)

Use cases: Multi-party signing, transaction authentication

Token Standards

BSV-20

Fungible tokens using inscription format.

{"p":"bsv-20","op":"deploy","tick":"TOKEN","max":"21000000","lim":"1000"}
{"p":"bsv-20","op":"mint","tick":"TOKEN","amt":"1000"}
{"p":"bsv-20","op":"transfer","tick":"TOKEN","amt":"100"}

Operations: deploy, mint, transfer, burn

BSV-21

Enhanced fungible tokens with contract control.

Features: Programmable supply, transfer rules, metadata

STAS (Simplified Token And Smart Contracts)

Native token protocol using Bitcoin script-level enforcement.

Website: https://www.stastoken.com/
Documentation: https://docs.stastoken.com/

Features:

• Script-enforced token transfers (no indexer required for validation)
• Fungible and non-fungible token support
• Atomic swaps and contract capabilities
• Native Bitcoin script validation

Run (Defunct)

Early BSV token protocol (runonbitcoin.com - no longer operational).

Status: Abandoned protocol from early BSV days. Stored data on-chain using B protocol, so historical artifacts remain accessible via ORDFS (ordfs.network).

Ordinals (1Sat Ordinals)

NFT inscriptions using ordinal theory on BSV.

Inscription Format

OP_0 OP_IF "ord" OP_1 <content-type> OP_0 <content> OP_ENDIF

Key Concepts

• Inscription: Data embedded in transaction scripts
• Ordinal ID: <txid>_<vout> unique identifier
• Collections: Grouped inscriptions with parent reference

Marketplace: https://ordinals.gorillapool.io

Identity Standards

Paymail

Human-readable payment addressing (BRC-29).

Format: user@domain.com

Capabilities:

• pki - Public key infrastructure
• paymentDestination - Get payment address
• p2p-payment-destination - Peer-to-peer payments
• receive-transaction - Direct transaction delivery

BAP Identity

On-chain identity management.

Components:

• Root address (identity anchor)
• Identity key (deterministic ID)
• Attestations (claims about identity)
• Key rotation (address transitions)

Off-Chain Standards

bitcoin-auth

HTTP authentication using Bitcoin private keys.

Token Format: pubkey|scheme|timestamp|requestPath|signature

Schemes: brc77 (recommended), bsm

bitcoin-backup

Encrypted backup file standard (.bep files).

Encryption: AES-256-GCM, PBKDF2-SHA256 (600k iterations)

Types: BapMasterBackup, BapMemberBackup, WifBackup, OneSatBackup, VaultBackup

bitcoin-image

On-chain image reference normalization.

Protocols: b://, ord://, bitfs://, ipfs://, data:, native txid

Outpoint Formats: txid_vout, txid.vout, txido0, /content/txid_vout

Data Schema Standards

Bitcoin Schema

Website: https://bitcoinschema.org

Standardized data structures for on-chain data built on MAP and B protocols.

Types: Post, Like, Follow, Reply, Repost, Friend, Message, Payment, Ordinal

Ord Schema Type

Docs: https://docs.1satordinals.com/adding-metadata/ord-schema-type

Base metadata schema for ordinals inscriptions.

Required: app, type ("ord"), name

Optional: subType, subTypeData, royalties, previewUrl

Related Packages

Package	Purpose
@bsv/sdk	Core BSV functionality
@b-open-io/templates	Script template implementations (replaces bmapjs)
js-1sat-ord	Ordinals/inscriptions (migrating to @1sat/sdk - in progress)
bsv-bap	BAP identity management
sigma-protocol	SIGMA signing
bitcoin-auth	HTTP authentication
bitcoin-backup	Encrypted backup files
bitcoin-image	URL normalization

Deprecated: bmapjs - replaced by @b-open-io/templates

Additional Resources

Reference Files

• references/brc-index.md - Complete BRC specification index
• references/bitcom-protocols.md - Detailed BitCom protocol specs
• references/token-standards.md - BSV-20/BSV-21/1Sat Ordinals details
• references/implementations.md - Local repo implementations and packages
• references/offchain-standards.md - Off-chain standards (auth, backup, image)

External Links

• BRC Standards: https://bsv.brc.dev/
• Bitcoin Schema: https://bitcoinschema.org
• 1Sat Ordinals Docs: https://docs.1satordinals.com/
• ORDFS Gateway: https://ordfs.network
• @b-open-io/templates: https://github.com/b-open-io/ts-templates
• sigma-protocol: https://github.com/BitcoinSchema/sigma
• js-1sat-ord: https://github.com/BitcoinSchema/js-1sat-ord
• bsv-bap: https://github.com/BitcoinSchema/bap
• bitcoin-auth: https://github.com/b-open-io/bitcoin-auth
• STAS Token: https://docs.stastoken.com/
• bitcoin-backup: https://github.com/b-open-io/bitcoin-backup
• bitcoin-image: https://github.com/b-open-io/bitcoin-image
• Paymail: https://bsvalias.org/