<h3 id="tldr">TL;DR</h3>
<p>This batched proposal is to initiate opening bidirectional HRMP channels with Mythos, EnergyWebX, Kilt, Polimec, Robonomics and later register assets xcMYTH, xcEWT, xcKILT, xcPLMC, xcXRT</p>
<p>XCM Disclosures: <a href="https://forum.moonbeam.network/t/xcm-disclosure-for-mythos-mythical/1834">Mythos</a>, <a href="https://forum.moonbeam.network/t/xcm-disclosure-energywebx/1822">EnergyWeb</a>, <a href="https://forum.moonbeam.network/t/xcm-disclosure-kilt/1826">Kilt</a>, <a href="https://forum.moonbeam.network/t/xcm-disclosure-polimec/1830">Polimec</a>, <a href="https://forum.moonbeam.network/t/xcm-disclosure-robonomics/1831">Robonomics</a></p>
<h3 id="summary">Summary</h3>
<p>I propose to open bi-directional channels between Moonbeam and Mythos, EnergyWebX, Kilt, Polimec, and Robonomics. Initially, the main use case will be to transfer GLMR (optional) and MYTH, EWT, KILT, PLMC, XRT between the chains, but it can be further expanded to other use cases. The proposal also includes the MYTH, EWT, KILT, PLMC, XRT asset registration as xcMYTH, xcEWT, xcKILT, xcPLMC, xcXRT, with the following details:</p>
<p>Mythos</p>
<ul>
<li>Multilocation: {&ldquo;parents&rdquo;: 1, &ldquo;interior&rdquo;: { &ldquo;X1&rdquo;: { &ldquo;Parachain&rdquo;: 3369 }}}</li>
<li>Decimals: 18</li>
<li>units per second: 139236205869084549793</li>
<li>coingecko: mythos</li>
<li>Name: Mythos</li>
<li>Symbol: xcMYTH</li>
<li>Asset ID: 180776216666493826625497766862403480512</li>
<li>XC-20 address: 0xffffffff88003b9ec05936d454dff8a78ee92bc0</li>
</ul>
<p>Energy Web</p>
<ul>
<li>Multilocation: {&ldquo;parents&rdquo;: 1, &ldquo;interior&rdquo;: { &ldquo;X1&rdquo;: { &ldquo;Parachain&rdquo;: 3345 }}}</li>
<li>Decimals: 18</li>
<li>units per second: 17241379310344827586</li>
<li>coingecko: energy-web-token</li>
<li>Name: EnergyWebX</li>
<li>Symbol: xcEWT</li>
<li>Asset ID: 12918853899538703959267810818394082568</li>
<li>XC-20 address: 0xffffffff09b814ac81777ed20fa9bb4df45ecd08</li>
</ul>
<p>Kilt</p>
<ul>
<li>Multilocation: {&ldquo;parents&rdquo;: 1, &ldquo;interior&rdquo;: { &ldquo;X1&rdquo;: { &ldquo;Parachain&rdquo;: 2086 }}}</li>
<li>Decimals: 15</li>
<li>units per second: 190730497806599275</li>
<li>coingecko: kilt-protocol</li>
<li>Name: Kilt</li>
<li>Symbol: xcKILT</li>
<li>Asset ID: 240880706016230232355462832677824058929</li>
<li>XC-20 address: 0xffffffffb537efbcc5971a307aa97902ced15631</li>
</ul>
<p>Polimec</p>
<ul>
<li>Multilocation: {&ldquo;parents&rdquo;: 1, &ldquo;interior&rdquo;: { &ldquo;X1&rdquo;: { &ldquo;Parachain&rdquo;: 3344 }}}</li>
<li>Decimals: 10</li>
<li>units per second: 1261644983194</li>
<li>coingecko: polimec</li>
<li>Name: Polimec</li>
<li>Symbol: xcPLMC</li>
<li>Asset ID: 303030103121785258767765889324676596982</li>
<li>XC-20 address: 0xffffffffe3f97997536d7966d90a2bc56978c4f6</li>
</ul>
<p>Robonomics</p>
<ul>
<li>Multilocation: {&ldquo;parents&rdquo;: 1, &ldquo;interior&rdquo;: { &ldquo;X1&rdquo;: { &ldquo;Parachain&rdquo;: 3388 }}}</li>
<li>Decimals: 9</li>
<li>units per second: 10822510822</li>
<li>coingecko: robonomics-network</li>
<li>Name: Robonomics</li>
<li>Symbol: xcXRT</li>
<li>Asset ID: 84332159473157763089773888451787071419</li>
<li>XC-20 address: 0xffffffff3f71c87a946e410db6387da0362f9fbb</li>
</ul>
<h3>&nbsp;</h3>
<h3 id="onchainproposalreference">On-Chain Proposal Reference</h3>
<p>On-Chain Preimage: 0xb1d4d91c78cf86e1420ca5882f36f9a8bcdcded7ace80a40791e09b1df199dd6</p>
<h3 id="technicaldetails">Technical details:</h3>
<p>The procedure for opening the channels is as follows:</p>
<ul>
<li>Moonbeam: batched proposal to initiate opening an HRMP channel with Mythos, EnergyWebX, Kilt, Polimec, Robonomics parachains.</li>
<li>each chain: democracy batched proposal:
<ul>
<li>Accept HRMP channel from Moonbeam</li>
<li>Initiate opening an HRMP channel back to Moonbeam</li>
<li>Register GLMR asset on the chain</li>
</ul>
</li>
<li>Moonbeam: democracy proposal to accept each returning HRMP open channel request and register the chain&rsquo;s token as an xcToken on Moonbeam</li>
</ul>
<p>The batched extrinsics that needs to be executed on the relay chain is:</p>
<ul>
<li>hrmp.hrmpInitOpenChannel(recipient: [3369], MaxCapacity: 1000, MaxMessageSize: 102400)</li>
<li>hrmp.hrmpInitOpenChannel(recipient: [2086], MaxCapacity: 1000, MaxMessageSize: 102400)</li>
<li>hrmp.hrmpInitOpenChannel(recipient: [3344], MaxCapacity: 1000, MaxMessageSize: 102400)</li>
<li>hrmp.hrmpInitOpenChannel(recipient: [3345], MaxCapacity: 1000, MaxMessageSize: 102400)</li>
<li>hrmp.hrmpInitOpenChannel(recipient: [3388], MaxCapacity: 1000, MaxMessageSize: 102400)</li>
</ul>
<p>If you are interested, the hex-encoded call data for this proposal in Moonbeam is:</p>
<p>`0x1e02146b090026080000e803000000900100010401000100e40b5402000000000000000000000002286bee0200040001006b0900100d0000e803000000900100010401000100e40b5402000000000000000000000002286bee0200040001006b0900110d0000e803000000900100010401000100e40b5402000000000000000000000002286bee0200040001006b09003c0d0000e803000000900100010401000100e40b5402000000000000000000000002286bee0200040001006b0900290d0000e803000000900100010401000100e40b5402000000000000000000000002286bee020004000100`</p>
<p>Note that after <a href="https://polkadot.subsquare.io/referenda/1071">Polkadot referendum 1071</a> passed, all of these chains have enough DOT in their Child accts to open these HRMP channels. AlbertoV19 said he would work with the Moonbeam Foundation to deposit 100 DOT into the Moonbeam relaychain child account to cover the deposit to open these five new channels.</p>
<p>After this initial proposal passes and the first batched extrinsic is sent to initiate opening HRMP channels, there will be some time delay before each parachain accepts the channel open requests and sends one back. At that time I will recalculate the units per second values and generate new extrinsics to consolidate the 2nd stage of accepting channels into as few transactions/proposals as possible. Therefore I am not providing the specific asset registration extrinsics yet.</p>
<p>&nbsp;</p>
<p>This proposal was originally submitted to the community in two Moonbeam Forum posts:</p>
<p><a href="https://forum.moonbeam.network/t/initiate-opening-xcm-hrmp-channel-with-mythos/1837">https://forum.moonbeam.network/t/initiate-opening-xcm-hrmp-channel-with-mythos/1837</a></p>
<p><a href="https://forum.moonbeam.network/t/proposal-67-opening-5-xcm-hrmp-channels-with-crust-energywebx-kilt-polimec-robonomics/1819">https://forum.moonbeam.network/t/proposal-67-opening-5-xcm-hrmp-channels-with-crust-energywebx-kilt-polimec-robonomics/1819</a></p>

Send a batch of dispatch calls and atomically execute them.
The whole transaction will rollback and fail if any of the calls failed.

May be called from any origin except `None`.

- `calls`: The calls to be dispatched from the same origin. The number of call must not
  exceed the constant: `batched_calls_limit` (available in constant metadata).

If origin is root then the calls are dispatched without checking origin filter. (This
includes bypassing `frame_system::Config::BaseCallFilter`).

## Complexity
- O(C) where C is the number of calls to be batched.

- **Problem Statement:** Batched proposal to open bidirectional HRMP channels with Mythos, EnergyWebX, Kilt, Polimec, and Robonomics, and register assets xcMYTH, xcEWT, xcKILT, xcPLMC, xcXRT.
- **Significance:** Enhancing interoperability between Moonbeam and various parachains for asset transfer.
- **Proposed Solution:** Initiate opening HRMP channels with specified parachains and register assets as xcTokens on Moonbeam.
- **Expected Outcomes:** Improved cross-chain asset transfer capabilities and increased collaboration between different blockchain networks.

#76 Initiate opening bidirectional HRMP channels with Mythos, EnergyWebX, Kilt, Polimec, Robonomics

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