Urdais

Urdais

Intelligence for the Information Age

Compute

Live

Energy / Power

Live

Crypto

Live

Bitcoin Optech Newsletter #431

This week’s newsletter links to draft BIPs for exfiltration-resistant signing, summarizes the disclosure of three vulnerabilities affecting older versions of Bitcoin Core, announces a plan for mining the testnet5 genesis block, and describes an investigation into degraded compact block reconstruction. Also included are our regular sections announcing new releases and release candidates and describing notable changes to popular Bitcoin infrastructure software.

Bitcoin Optech · Nov 13, 2026

Bitcoin Optech Newsletter #430 Recap Podcast

Mark “Murch” Erhardt, Gustavo Flores Echaiz, and Mike Schmidt are joined by 0xB10C, Luke Carriere, and Sjors Provoost to discuss Newsletter #430.

Bitcoin Optech · Nov 10, 2026

Measurement index

What Urdais Measures

The markets and infrastructure underlying the Information Age.

  1. Compute

    Price of computational capacity

    • $/GPU-hour
    • $/PFLOP-hour
    • H100 · H200 · B200
  2. Memory

    Price of DRAM memory

    • Index points
    • DRAM PPI
    • Export unit value
  3. Photonics

    Price of moving information

    • $/Gbps
    • Transceivers
    • Optical bandwidth
  4. Energy / Power

    Price of powering computation

    • $/kWh
    • $/MWh
    • Regional pricing
  5. Chips & Accelerators

    Price of advanced compute hardware

    • $/accelerator
    • Performance/$
    • Availability
  6. Model Economics

    Price of machine intelligence

    • $/1M input tokens
    • $/1M output tokens
    • Inference cost
  7. Crypto

    Native monetary markets of the Information Age

    • BTC purchasing power
    • Network economics

Measured across

  • Price
  • Capacity
  • Performance
  • Region
  • Service quality
  • Volatility