Limited to just 20 copies of this special dust jacket. $21 from each sale will be donated to Hal Finney ALS/MND Research Fund on your behalf.

Numbered based on order received.

Signed, 976 pages, hard cover, protective case, and lifetime Bluroo.ai subscription.

Includes referral program: Receive $20 in Bitcoin for each referral. Provide your Bitcoin address and verifiable email address when you order. Terms and conditions apply.