It seems you are asking for the “script” (text) connected with Siddhachakra Rāja (often said colloquially as “Siddhchakra rājā”). In Jain tradition, the heart of Siddhachakra worship is the Navkār (Namokār) Mahāmantra, which venerates the Panch Parameṣṭhī. Below is the authentic text and a very simple meaning.

Original (Prakrit) ṇamo arihantāṇaṃ ṇamo siddhāṇaṃ ṇamo āyariyāṇaṃ ṇamo uvajjhāyāṇaṃ ṇamo loe savva sāhūṇaṃ eso paṃca namokkāro savva pāvappaṇāsano maṃgalaṇaṃ ca savvesiṃ paḍhamaṃ havai maṅgalaṃ

Simple meaning (arth)

• I bow to Arihants.
• I bow to Siddhas (liberated souls).
• I bow to Āchāryas.
• I bow to Upādhyāyas (preceptors).
• I bow to all Sādhus and Sādhvīs.

These five salutations destroy all sins and are the foremost among all auspicious things.

Notes on traditions

• Shvetāmbara and Digambara both accept the Navkār Mantra as primary; minor differences are only in pronunciation/orthography.
• Siddhachakra Pūjā/Ārādhana forms (stavan, vidhi, 108 bol, etc.) vary by local tradition and granth, but they all center on the Panch Parameṣṭhī embodied in the Siddhachakra.

If you need the full Siddhachakra Pūjā/Ārādhana text (the longer stutis/vidhi that are recited along with Navkār), please refer to the Siddhachakra-focused guides and Navkār resources here: