# 2017-07-20

What the record holds about this day.


## Became true

- [Braze](/record/braze.md) | registrant_name | Appboy, Inc. | valid 2017-07-20 to 2017-08-14 | conf 0.95 | superseded | superseded_by [clm_956CDD9AAF52](/claim/clm_956CDD9AAF52.md) | [clm_DCD19ABFEA50](/claim/clm_DCD19ABFEA50.md)
- [OpenAI](/record/openai.md) | announcement | Proximal Policy Optimization | valid 2017-07-20 to present | conf 0.50 | valid | [clm_8B1DAF5E00D0](/claim/clm_8B1DAF5E00D0.md)

## Stopped being true

- none

## Recorded or changed on this day

- none

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AsOf is a temporal fact ledger: a structured, dated, sourced record of what is true and what changed, built for AI retrieval.