Online Supplementary Appendix to "Beyond 'Permissionless': Governance, Commitment, and Rule Change in Public Blockchains"

Online supplementary appendix to the manuscript 'Beyond Permissionless: Governance, Commitment, and Rule Change in Public Blockchains' (Journal of Institutional Economics, manuscript ID JOIE-2026-0187). Part A presents extended case material on the BTC Core governance episode and the Ethereum DAO intervention, including the four Stigler products mapping and Williamson, Kydland-Prescott, and Tirole readings of the DAO case. Part B presents the TCP/IP institutional comparator in fuller form, expanded source documentation for Table 1a, and the eight-system audit methodology with sample-selection criteria and source-data limitations. Includes a self-contained reference list of 33 entries.