0RDINALSservice
HomeViewLearnCreateIndexBitmapOODLAPIFAQ
inscribe

Ordinals Guides

Everything you need to know about Bitcoin Ordinals — from the basics to advanced techniques. Written for humans, optimized for understanding.

Fundamentals

ORDFundamentals

What Are Bitcoin Ordinals?

A complete beginner-friendly guide to Bitcoin Ordinals — what they are, how they work, and why they matter for the future of Bitcoin.

Open guide
SATFundamentals

Ordinals Rarity Guide — Sat Rarity Explained

Understand the rarity system in Ordinal Theory — from common sats to the mythic first satoshi ever mined.

Open guide

How-To

INSHow-To

How to Inscribe on Bitcoin

Step-by-step guide to creating your first Bitcoin Ordinals inscription — from preparing your file to broadcasting the transaction.

Open guide
OPTHow-To

How to Optimize Files for Ordinals Inscriptions

Learn how to minimize file sizes for cheaper inscriptions — compression techniques, format selection, and tools to reduce fees.

Open guide

Advanced

P/CAdvanced

Parent-Child Inscriptions Explained

Learn how parent-child inscriptions work — the system for creating on-chain collections, hierarchies, and linked digital artifacts on Bitcoin.

Open guide
RECAdvanced

Recursive Inscriptions — Building On-Chain

Understand recursive inscriptions — how inscriptions can reference and compose other inscriptions to build complex on-chain applications.

Open guide

Learn

  • What Are Ordinals?
  • How to Inscribe
  • Rarity Guide
  • Inscribe with Oodinals
  • FAQ

Explore

  • Latest Inscriptions
  • Ordinals Companion
  • Bitmap Guide
  • Bitmap420 Explorer
  • API Explorer
  • Index Request
  • OODL

Tools

  • Image Compress
  • Text Compress
  • Pixel Studio
  • Inscription Creator
0RDINALS app — view, learn, create, inscribe, index, oodl