The signature-line attribution of the late-Táng / Five-Dynasties Shí-wáng jīng 十王經 (“Ten Kings of the Underworld”) corpus, two of whose constituent texts are preserved in the canon: KR6i0583 Fó-shuō Dìzàng Púsà fāxīn yīnyuán Shí-wáng jīng (X01 no. 020) and KR6i0584 Fó-shuō yùxiū Shí-wáng shēng-qī jīng (X01 no. 021). The attributions identify him as Chéngdū Mádà Shèng-cí’ēn-sì shā-mén 成都麻大聖慈恩寺沙門 (“a śramaṇa of the Mádà Shèng-cí’ēn-sì in Chéngdū”), referring to the Shèng-cí-sì 大聖慈寺 (also commonly named Dà Shèng-cí’ēn-sì 大聖慈恩寺), one of the most prominent Táng-period Sichuan monasteries (founded under Xuanzong, expanded under late-Táng emperors). His historicity is uncertain: modern scholarship (esp. Stephen Teiser, The Scripture on the Ten Kings, 1994) treats Cángchuān as most plausibly a literary persona constructed within the Shí-wáng tradition rather than a historically attested individual monk. The Sichuan-monastic context of the Shí-wáng corpus is, however, well-attested through late-Táng iconographic and inscriptional sources. Lifedates not securely recorded; the active period within which the texts were composed is bracketed at circa 800–950.