# Determining which (if any) decryptors were used for an invention job, from ESI

**URL:** <https://forums.eveonline.com/t/determining-which-if-any-decryptors-were-used-for-an-invention-job-from-esi/173637>\
**Category:** Third Party Developers\
**Tags:** esi\
**Created:** [July 9, 2019, 6:04pm UTC](https://forums.eveonline.com/t/determining-which-if-any-decryptors-were-used-for-an-invention-job-from-esi/173637 "2019-07-09T18:04:57Z")\
**Posts on this page:** 1\
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**Author:** ![Aerwyn\_Darcy](https://sea1.discourse-cdn.com/eveonline/user_avatar/forums.eveonline.com/aerwyn_darcy/32/313392_2.png) [@Aerwyn\_Darcy](https://forums.eveonline.com/u/Aerwyn_Darcy)\
**Post date:** [July 11, 2019, 5:39am UTC](https://forums.eveonline.com/t/determining-which-if-any-decryptors-were-used-for-an-invention-job-from-esi/173637/4 "2019-07-11T05:39:31Z")

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Parity and optimized augmentation decryptors result in the same me/te bonuses. The way I do it is track invented blueprint costs and then just add the bpc cost to the resulting mfg job. But I don think you could determine if a parity or optimized augmentation decryptor was used to invent the bpc once the bpc’s runs fell within the run numbers of the parity decryptor unless you kept track of total jobs and could determine that you started with more runs on the bpc than the parity decryptor provides initially.

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