# Extended information of BlockCerts

**URL:** <https://community.blockcerts.org/t/extended-information-of-blockcerts/2293>\
**Category:** Community\
**Created:** [January 28, 2020, 12:58pm UTC](https://community.blockcerts.org/t/extended-information-of-blockcerts/2293 "2020-01-28T12:58:17Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![taira](https://avatars.discourse-cdn.com/v4/letter/t/67e7ee/32.png) [@taira](https://community.blockcerts.org/u/taira)\
**Post date:** [January 28, 2020, 12:58pm UTC](https://community.blockcerts.org/t/extended-information-of-blockcerts/2293/1 "2020-01-28T12:58:17Z")

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Are all the items in the sample JSON file in “unsigned\_certificates” of “cert-issuer” required as elements that make up the JSON file of BlockCerts?

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**Author:** ![aronning](https://avatars.discourse-cdn.com/v4/letter/a/47e85d/32.png) [@aronning](https://community.blockcerts.org/u/aronning)\
**Post date:** [January 28, 2020, 7:03pm UTC](https://community.blockcerts.org/t/extended-information-of-blockcerts/2293/2 "2020-01-28T19:03:16Z")

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There’s a doc here on the fields: [https://github.com/blockchain-certificates/cert-schema/blob/master/docs/schema-2.md](https://github.com/blockchain-certificates/cert-schema/blob/master/docs/schema-2.md)

and you can view the schema here that shows required as well: [https://github.com/blockchain-certificates/cert-schema/blob/master/cert\_schema/2.0/schema.json](https://github.com/blockchain-certificates/cert-schema/blob/master/cert_schema/2.0/schema.json)

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**Author:** ![taira](https://avatars.discourse-cdn.com/v4/letter/t/67e7ee/32.png) [@taira](https://community.blockcerts.org/u/taira)\
**Post date:** [January 30, 2020, 2:08am UTC](https://community.blockcerts.org/t/extended-information-of-blockcerts/2293/3 "2020-01-30T02:08:29Z")

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Thanks aronning. I will refer to it.