The following Unicode-related documents record the purpose and process of defining specific characters in the CJK Unified Ideographs Extension H block:
Moore, Lisa (2015-11-16), "Consensus 145-C4", UTC #145 Minutes, Accept the proposal to submit 313 characters documented in L2/15-223 and send to the IRG.
Moore, Lisa (2016-11-18), "Action Item 149-A74", UTC #149 Minutes, Add character Hanyu Dazidian 42326.100 to proposed update of UAX #45, and include in our submission for Extension H. See L2/16-269.
Moore, Lisa (2017-08-11), "Consensus 152-C25", UTC #152 Minutes, Prepare a submission to IRG based on documents L2/17-286 and L2/17-204 with possible refinements.
Unified
Unified
Unified
Unified
Unified
Unified
Unified
Unified
Unified
Unified
Not unified
Not unified
Not unified
Not unified
Not unified
Not unified
Not unified
12 are unified
Not unified
Not unified
Not unified
Han
Han
Han
Han
Han
Han
Han
Han
Han
Han
Han
Han Common
Han, Hangul, Common, Inherited
Common
Hangul, Katakana, Common
Katakana, Common
Han
Common Hiragana, Common
Han