chemart / ikegami-hashimoto

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Machine-tape chemistry — Von Neumann's separation of constructor and description, made into a chemistry. Two populations coexist: machines, which act, and tapes, which are read. A machine reading a tape produces a new machine and a new tape, so …

chemistry official · built in automata fidelity: reconstructed constructive #banzhaf-yamamoto

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Machine-tape chemistry

One of the artificial chemistries of Banzhaf & Yamamoto, Artificial Chemistries (MIT Press, 2015), §10.5.4; first proposed by Ikegami & Hashimoto, 1995.

Its generator ships with the chemart library, so loading it runs no code from the hub and needs no trust_remote_code.

import chemart

net = chemart.generate_network("chemart/ikegami-hashimoto", seed=0)   # same as "ikegami-hashimoto"
print(net.summary())