Share this article

'The Age of Cryptocurrency' Recorded on Blockchain

On Monday evening the first book of its exposure by a major publisher was permanently recorded into the bitcoin blockchain.

Updated Sep 11, 2021, 11:30 a.m. Published Feb 3, 2015, 2:00 a.m.
cryptobook hash
cryptobook hash

The Age of CryptoCurrency, the recently released book by Wall Street Journal reporter Paul Vigna and senior columnist Michael J Casey, has been permanently recorded on bitcoin's public ledger, the blockchain.

STORY CONTINUES BELOW
Don't miss another story.Subscribe to the Crypto Daybook Americas Newsletter today. See all newsletters

The book is the first by a major publisher with its exposure and interest to have a time-stamped digest recorded in the blockchain, actively demonstrating the technology beyond just the subject of the book.

Digital Currency Council

(DCC) director of curriculum Dan McArdle copied the book into Block 341705 using the firm’s Blockchain Recordation Toolbox, which allows DCC professionals access to blockchain recordkeeping for clients. The process used open source platform Proof of Existence.

McArdle said:

“This hash is unique to the book, and therefore could not have been generated before the book existed. By embedding this hash in a bitcoin transaction, the existence of the book on that transaction date is logged in the most secure and irrefutable recordkeeping system humanity has ever devised.”

Vigna and Casey received a certificate representative of blockchain recordation process. The record is now fully transparent on the blockchain.

The process was confirmed in under an hour.

The 'Age of CryptoCurrency' can be purchased with bitcoin on Overstock.

More For You

Protocol Research: GoPlus Security

GP Basic Image

What to know:

  • As of October 2025, GoPlus has generated $4.7M in total revenue across its product lines. The GoPlus App is the primary revenue driver, contributing $2.5M (approx. 53%), followed by the SafeToken Protocol at $1.7M.
  • GoPlus Intelligence's Token Security API averaged 717 million monthly calls year-to-date in 2025 , with a peak of nearly 1 billion calls in February 2025. Total blockchain-level requests, including transaction simulations, averaged an additional 350 million per month.
  • Since its January 2025 launch , the $GPS token has registered over $5B in total spot volume and $10B in derivatives volume in 2025. Monthly spot volume peaked in March 2025 at over $1.1B , while derivatives volume peaked the same month at over $4B.

More For You

These Three Metrics Show Bitcoin Found Strong Support Near $80,000

True Market Mean (Glassnode)

Onchain data shows multiple cost basis metrics confirm heavy demand and investor conviction around the $80,000 price level.

What to know:

  • Bitcoin rebounded from the $80,000 region after a sharp correction from its October all time high, with price holding above the average entry levels of key metrics.
  • The convergence of the True Market Mean, U.S. ETF cost basis, and the 2024 yearly cost basis around the low $80,000 range highlights this zone as a major area of structural support.