Early-Southern-Sòng 南宋 Daoist scholar, hào 清和居士 Qīng hé jū shì (“Lay-practitioner of Clear Harmony”), known as the revising scholar and textual annotator of the [[KR5c0071|Dàodé zhēn jīng zhí jiě 道德真經直解]] (DZ 688) of 邵若愚 Shào Ruòyú (preface 1159).
Role. Zhāng Zhīxīn’s contributions to DZ 688 consist primarily of textual-philological notes on the Dàodé jīng passages in Shào Ruòyú’s commentary — critical-edition-style glosses on variant readings, questionable characters, and textual parallels in other Daoist scriptures. The catalog meta lists his function as 改訂 (gǎi dìng, “revising / correcting”). In the received DZ 688 text, the distribution of Zhāng’s textual notes and Shào’s main commentary is not always clearly separated, and some integration seems to have occurred in editorial transmission.
Other works. No independent work by Zhāng Zhīxīn is attested in the Daozang or in Sòng bibliographies.
Dating. Active c. 1159 (DZ 688’s preface date). No lifedates or biographical details are recorded. No CBDB record identified.
The hào “Qīng hé jū shì” 清和居士 (“Lay-practitioner of Clear Harmony”) is a Daoist-devotional style-name; “jū shì” 居士 specifically identifies him as a lay practitioner rather than an ordained Daoist priest. This suggests a scholar-official Daoist devotee rather than a member of the ordained clergy.