# MerkleProof2017 Ethereum Testnet not properly identified

**URL:** <https://community.blockcerts.org/t/merkleproof2017-ethereum-testnet-not-properly-identified/2097>\
**Category:** Standards\
**Created:** [September 23, 2019, 10:49am UTC](https://community.blockcerts.org/t/merkleproof2017-ethereum-testnet-not-properly-identified/2097 "2019-09-23T10:49:07Z")\
**Posts on this page:** 3\
**Page:** 1

<div class="post-metadata">

**Author:** ![davidlj\_btca](https://sea2.discourse-cdn.com/flex016/user_avatar/community.blockcerts.org/davidlj_btca/32/543_2.png) [@davidlj\_btca](https://community.blockcerts.org/u/davidlj_btca)\
**Post date:** [September 23, 2019, 10:49am UTC](https://community.blockcerts.org/t/merkleproof2017-ethereum-testnet-not-properly-identified/2097/1 "2019-09-23T10:49:08Z")

</div>

In the Merkle Proof 2017 schema definition, the `chain` string can be one of the values defined here:

> <https://github.com/blockchain-certificates/cert-schema/blob/master/docs/merkleProofSignatureExtension_schema.md#chain-string>

The question is, what chain does **ethereumTestnet** refers to?

There are multiple Ethereum testnets like Ropsten (already has a chain value called `ethereumRopsten`), Rinkeby, Goerli…

PD1: The reference verification library does not use this chain value in their `blockchains.js` definitions

> <https://github.com/blockchain-certificates/cert-verifier-js/blob/v3.1.3/src/constants/blockchains.js>

PD2: Ask it here because the repository in GitHub has no issues section.

Thanks!

---

<div class="post-metadata">

**Author:** ![aronning](https://avatars.discourse-cdn.com/v4/letter/a/47e85d/32.png) [@aronning](https://community.blockcerts.org/u/aronning)\
**Post date:** [October 7, 2019, 11:19am UTC](https://community.blockcerts.org/t/merkleproof2017-ethereum-testnet-not-properly-identified/2097/2 "2019-10-07T11:19:53Z")

</div>

Thanks @davidlj_btca, I think you’re right, there’s not really an ethereum testnet, there’s specific testnet implementations such as Ropsten which, like you said, is already identified.

I guess we should just remove it from that spec then?

---

<div class="post-metadata">

**Author:** ![davidlj\_btca](https://sea2.discourse-cdn.com/flex016/user_avatar/community.blockcerts.org/davidlj_btca/32/543_2.png) [@davidlj\_btca](https://community.blockcerts.org/u/davidlj_btca)\
**Post date:** [October 7, 2019, 11:37am UTC](https://community.blockcerts.org/t/merkleproof2017-ethereum-testnet-not-properly-identified/2097/3 "2019-10-07T11:37:37Z")

</div>

Perfect, created a PR in the spec then

> <https://github.com/blockchain-certificates/cert-schema/pull/7>