<?xml version="1.0" encoding="UTF-8"?>

<!--XBRL Document Created with the Workiva Platform-->
<!--Copyright 2026 Workiva-->
<!--r:019dcf58-8326-7a7e-b016-4c806a8a555b,g:00fc4baa-c177-45c3-ba9a-1cd5fca464e2-->
<link:linkbase xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xbrldt="http://xbrl.org/2005/xbrldt" xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd">
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/all" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#all"/>
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#hypercube-dimension"/>
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#dimension-default"/>
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#dimension-domain"/>
  <link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/domain-member" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#domain-member"/>
  <link:roleRef roleURI="http://xbrl.sec.gov/oef/role/SeriesOnly" xlink:type="simple" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#SeriesOnly"/>
  <link:definitionLink xlink:role="http://xbrl.sec.gov/oef/role/SeriesOnly" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_dei_EntityDomain" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_EntityDomain"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001683471_S000095659Member_019dcf58-c6e0-76fc-a3e7-7162f262dc18" xlink:href="ck0001683471-20260429.xsd#ck0001683471_S000095659Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain" xlink:to="loc_ck0001683471_S000095659Member_019dcf58-c6e0-76fc-a3e7-7162f262dc18" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001683471_S000095658Member_019dcf58-c6e0-730c-a675-6bfa54cad643" xlink:href="ck0001683471-20260429.xsd#ck0001683471_S000095658Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain" xlink:to="loc_ck0001683471_S000095658Member_019dcf58-c6e0-730c-a675-6bfa54cad643" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001683471_S000096555Member_019dcf59-e9c5-7024-a061-440517c41276" xlink:href="ck0001683471-20260429.xsd#ck0001683471_S000096555Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain" xlink:to="loc_ck0001683471_S000096555Member_019dcf59-e9c5-7024-a061-440517c41276" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001683471_S000096556Member_019dcf59-e9c5-78e2-8490-233cc2925eef" xlink:href="ck0001683471-20260429.xsd#ck0001683471_S000096556Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_dei_EntityDomain" xlink:to="loc_ck0001683471_S000096556Member_019dcf59-e9c5-78e2-8490-233cc2925eef" xlink:type="arc" order="4"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://xbrl.sec.gov/oef/role/ClassOnly" xlink:type="simple" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#ClassOnly"/>
  <link:definitionLink xlink:role="http://xbrl.sec.gov/oef/role/ClassOnly" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_oef_ShareClassDomain" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#oef_ShareClassDomain"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001683471_C000264396Member_019dcf58-c6e0-76d7-b2ef-9425ee78f6c1" xlink:href="ck0001683471-20260429.xsd#ck0001683471_C000264396Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oef_ShareClassDomain" xlink:to="loc_ck0001683471_C000264396Member_019dcf58-c6e0-76d7-b2ef-9425ee78f6c1" xlink:type="arc" order="1"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001683471_C000264395Member_019dcf58-c6e0-7cc4-94dd-ff90e5107aed" xlink:href="ck0001683471-20260429.xsd#ck0001683471_C000264395Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oef_ShareClassDomain" xlink:to="loc_ck0001683471_C000264395Member_019dcf58-c6e0-7cc4-94dd-ff90e5107aed" xlink:type="arc" order="2"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001683471_C000265435Member_019dcf59-e9c5-7038-80eb-887f9a53ca71" xlink:href="ck0001683471-20260429.xsd#ck0001683471_C000265435Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oef_ShareClassDomain" xlink:to="loc_ck0001683471_C000265435Member_019dcf59-e9c5-7038-80eb-887f9a53ca71" xlink:type="arc" order="3"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001683471_C000265436Member_019dcf59-e9c5-7ca5-bc59-2d3fca99548b" xlink:href="ck0001683471-20260429.xsd#ck0001683471_C000265436Member"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oef_ShareClassDomain" xlink:to="loc_ck0001683471_C000265436Member_019dcf59-e9c5-7ca5-bc59-2d3fca99548b" xlink:type="arc" order="4"/>
  </link:definitionLink>
  <link:roleRef roleURI="http://xbrl.sec.gov/rr/role/RiskOnly" xlink:type="simple" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#RiskOnly"/>
  <link:definitionLink xlink:role="http://xbrl.sec.gov/rr/role/RiskOnly" xlink:type="extended">
    <link:loc xlink:type="locator" xlink:label="loc_oef_AllRisksMember" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#oef_AllRisksMember"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001683471_CryptoAssetRiskMember_019dcf58-c6e0-7a99-8d00-01fbbb596eae" xlink:href="ck0001683471-20260429.xsd#ck0001683471_CryptoAssetRiskMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oef_AllRisksMember" xlink:to="loc_ck0001683471_CryptoAssetRiskMember_019dcf58-c6e0-7a99-8d00-01fbbb596eae" xlink:type="arc" order="9"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001683471_CryptoAssetRiskSupplyAndDemandRiskMember_019dcf58-c6e0-7ab7-9ae7-728944304cdd" xlink:href="ck0001683471-20260429.xsd#ck0001683471_CryptoAssetRiskSupplyAndDemandRiskMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oef_AllRisksMember" xlink:to="loc_ck0001683471_CryptoAssetRiskSupplyAndDemandRiskMember_019dcf58-c6e0-7ab7-9ae7-728944304cdd" xlink:type="arc" order="10"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001683471_CryptoAssetRiskCryptoAssetCompetitionRiskMember_019dcf58-c6e0-7917-9aa2-e7d7516813d3" xlink:href="ck0001683471-20260429.xsd#ck0001683471_CryptoAssetRiskCryptoAssetCompetitionRiskMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oef_AllRisksMember" xlink:to="loc_ck0001683471_CryptoAssetRiskCryptoAssetCompetitionRiskMember_019dcf58-c6e0-7917-9aa2-e7d7516813d3" xlink:type="arc" order="11"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001683471_CryptoAssetRiskAdoptionAndUseOfCryptoAssetsRiskMember_019dcf58-c6e0-7a43-b8b6-e2291ff63c41" xlink:href="ck0001683471-20260429.xsd#ck0001683471_CryptoAssetRiskAdoptionAndUseOfCryptoAssetsRiskMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oef_AllRisksMember" xlink:to="loc_ck0001683471_CryptoAssetRiskAdoptionAndUseOfCryptoAssetsRiskMember_019dcf58-c6e0-7a43-b8b6-e2291ff63c41" xlink:type="arc" order="12"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001683471_CryptoAssetRiskRiskFactorsRelatedToTheRegulationOfCryptoAssetsRiskMember_019dcf58-c6e0-7f62-ba3b-5598abbc0fe4" xlink:href="ck0001683471-20260429.xsd#ck0001683471_CryptoAssetRiskRiskFactorsRelatedToTheRegulationOfCryptoAssetsRiskMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oef_AllRisksMember" xlink:to="loc_ck0001683471_CryptoAssetRiskRiskFactorsRelatedToTheRegulationOfCryptoAssetsRiskMember_019dcf58-c6e0-7f62-ba3b-5598abbc0fe4" xlink:type="arc" order="13"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001683471_CryptoAssetRiskLargelyUnregulatedMarketplaceRiskMember_019dcf58-c6e0-7342-a405-704f77cf23d4" xlink:href="ck0001683471-20260429.xsd#ck0001683471_CryptoAssetRiskLargelyUnregulatedMarketplaceRiskMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oef_AllRisksMember" xlink:to="loc_ck0001683471_CryptoAssetRiskLargelyUnregulatedMarketplaceRiskMember_019dcf58-c6e0-7342-a405-704f77cf23d4" xlink:type="arc" order="14"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001683471_CryptoAssetRiskCybersecurityRiskMember_019dcf58-c6e0-74c3-9085-79316d16fa07" xlink:href="ck0001683471-20260429.xsd#ck0001683471_CryptoAssetRiskCybersecurityRiskMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oef_AllRisksMember" xlink:to="loc_ck0001683471_CryptoAssetRiskCybersecurityRiskMember_019dcf58-c6e0-74c3-9085-79316d16fa07" xlink:type="arc" order="15"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001683471_CryptoAssetRiskForkedAssetRiskMember_019dcf58-c6e0-7c35-ba3b-05c85c4e238e" xlink:href="ck0001683471-20260429.xsd#ck0001683471_CryptoAssetRiskForkedAssetRiskMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oef_AllRisksMember" xlink:to="loc_ck0001683471_CryptoAssetRiskForkedAssetRiskMember_019dcf58-c6e0-7c35-ba3b-05c85c4e238e" xlink:type="arc" order="16"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001683471_CryptoAssetRiskAttackRiskMember_019dcf58-c6e0-7e8e-8956-566afb42adcc" xlink:href="ck0001683471-20260429.xsd#ck0001683471_CryptoAssetRiskAttackRiskMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oef_AllRisksMember" xlink:to="loc_ck0001683471_CryptoAssetRiskAttackRiskMember_019dcf58-c6e0-7e8e-8956-566afb42adcc" xlink:type="arc" order="17"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001683471_CryptoAssetRiskCryptoAssetTaxRiskMember_019dcf58-c6e0-7892-89dc-d16dbc97ed87" xlink:href="ck0001683471-20260429.xsd#ck0001683471_CryptoAssetRiskCryptoAssetTaxRiskMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oef_AllRisksMember" xlink:to="loc_ck0001683471_CryptoAssetRiskCryptoAssetTaxRiskMember_019dcf58-c6e0-7892-89dc-d16dbc97ed87" xlink:type="arc" order="18"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001683471_BitcoinRiskMember_019dcf58-c6e0-7435-ab36-18dc4f484c2f" xlink:href="ck0001683471-20260429.xsd#ck0001683471_BitcoinRiskMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oef_AllRisksMember" xlink:to="loc_ck0001683471_BitcoinRiskMember_019dcf58-c6e0-7435-ab36-18dc4f484c2f" xlink:type="arc" order="19"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001683471_BitcoinRiskAdoptionAndUseOfBitcoinRiskMember_019dcf58-c6e0-72a2-ab12-0aed5866e216" xlink:href="ck0001683471-20260429.xsd#ck0001683471_BitcoinRiskAdoptionAndUseOfBitcoinRiskMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oef_AllRisksMember" xlink:to="loc_ck0001683471_BitcoinRiskAdoptionAndUseOfBitcoinRiskMember_019dcf58-c6e0-72a2-ab12-0aed5866e216" xlink:type="arc" order="20"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001683471_BitcoinRiskCompetitionFromOtherBlockchainsAndDigitalAssetsRiskMember_019dcf58-c6e0-7091-bc80-673aef1df9c4" xlink:href="ck0001683471-20260429.xsd#ck0001683471_BitcoinRiskCompetitionFromOtherBlockchainsAndDigitalAssetsRiskMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oef_AllRisksMember" xlink:to="loc_ck0001683471_BitcoinRiskCompetitionFromOtherBlockchainsAndDigitalAssetsRiskMember_019dcf58-c6e0-7091-bc80-673aef1df9c4" xlink:type="arc" order="21"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001683471_BitcoinRiskTheRegulatoryEnvironmentRelatingToBitcoinRiskMember_019dcf58-c6e0-7253-a9a0-948545ddd98e" xlink:href="ck0001683471-20260429.xsd#ck0001683471_BitcoinRiskTheRegulatoryEnvironmentRelatingToBitcoinRiskMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oef_AllRisksMember" xlink:to="loc_ck0001683471_BitcoinRiskTheRegulatoryEnvironmentRelatingToBitcoinRiskMember_019dcf58-c6e0-7253-a9a0-948545ddd98e" xlink:type="arc" order="22"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001683471_BitcoinRiskDecliningMiningCompensationRiskMember_019dcf58-c6e0-7dae-8906-7e1be5961c61" xlink:href="ck0001683471-20260429.xsd#ck0001683471_BitcoinRiskDecliningMiningCompensationRiskMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oef_AllRisksMember" xlink:to="loc_ck0001683471_BitcoinRiskDecliningMiningCompensationRiskMember_019dcf58-c6e0-7dae-8906-7e1be5961c61" xlink:type="arc" order="23"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001683471_BitcoinRiskBitcoinMarketVolatilityRiskMember_019dcf58-c6e0-70d6-ab54-0db2324339aa" xlink:href="ck0001683471-20260429.xsd#ck0001683471_BitcoinRiskBitcoinMarketVolatilityRiskMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oef_AllRisksMember" xlink:to="loc_ck0001683471_BitcoinRiskBitcoinMarketVolatilityRiskMember_019dcf58-c6e0-70d6-ab54-0db2324339aa" xlink:type="arc" order="24"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001683471_BitcoinRiskEnvironmentalRiskMember_019dcf58-c6e0-72f8-b917-44ff2e532881" xlink:href="ck0001683471-20260429.xsd#ck0001683471_BitcoinRiskEnvironmentalRiskMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oef_AllRisksMember" xlink:to="loc_ck0001683471_BitcoinRiskEnvironmentalRiskMember_019dcf58-c6e0-72f8-b917-44ff2e532881" xlink:type="arc" order="25"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001683471_EtherRiskMember_019dcf58-c6e0-7156-ba46-10508bb8aab0" xlink:href="ck0001683471-20260429.xsd#ck0001683471_EtherRiskMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oef_AllRisksMember" xlink:to="loc_ck0001683471_EtherRiskMember_019dcf58-c6e0-7156-ba46-10508bb8aab0" xlink:type="arc" order="26"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001683471_EtherRiskAdoptionAndUseOfEtherRiskMember_019dcf58-c6e0-749c-aa89-bb863fd5fa53" xlink:href="ck0001683471-20260429.xsd#ck0001683471_EtherRiskAdoptionAndUseOfEtherRiskMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oef_AllRisksMember" xlink:to="loc_ck0001683471_EtherRiskAdoptionAndUseOfEtherRiskMember_019dcf58-c6e0-749c-aa89-bb863fd5fa53" xlink:type="arc" order="27"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001683471_EtherRiskDecliningValidatorRewardsRiskMember_019dcf58-c6e0-739c-9355-48fed9396486" xlink:href="ck0001683471-20260429.xsd#ck0001683471_EtherRiskDecliningValidatorRewardsRiskMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oef_AllRisksMember" xlink:to="loc_ck0001683471_EtherRiskDecliningValidatorRewardsRiskMember_019dcf58-c6e0-739c-9355-48fed9396486" xlink:type="arc" order="28"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001683471_EtherRiskForksRiskMember_019dcf58-c6e0-7788-b17d-a22e653e09e0" xlink:href="ck0001683471-20260429.xsd#ck0001683471_EtherRiskForksRiskMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oef_AllRisksMember" xlink:to="loc_ck0001683471_EtherRiskForksRiskMember_019dcf58-c6e0-7788-b17d-a22e653e09e0" xlink:type="arc" order="29"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001683471_EtherRiskPricingVolatilityRiskMember_019dcf58-c6e0-7968-8209-60c467d104e6" xlink:href="ck0001683471-20260429.xsd#ck0001683471_EtherRiskPricingVolatilityRiskMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oef_AllRisksMember" xlink:to="loc_ck0001683471_EtherRiskPricingVolatilityRiskMember_019dcf58-c6e0-7968-8209-60c467d104e6" xlink:type="arc" order="30"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001683471_EtherRiskIntellectualPropertyRightsClaimsRiskMember_019dcf58-c6e0-7544-98bb-7785324fe11e" xlink:href="ck0001683471-20260429.xsd#ck0001683471_EtherRiskIntellectualPropertyRightsClaimsRiskMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oef_AllRisksMember" xlink:to="loc_ck0001683471_EtherRiskIntellectualPropertyRightsClaimsRiskMember_019dcf58-c6e0-7544-98bb-7785324fe11e" xlink:type="arc" order="31"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001683471_BinanceCoinRiskMember_019dcf58-c6e0-730e-9db9-03d57d43468f" xlink:href="ck0001683471-20260429.xsd#ck0001683471_BinanceCoinRiskMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oef_AllRisksMember" xlink:to="loc_ck0001683471_BinanceCoinRiskMember_019dcf58-c6e0-730e-9db9-03d57d43468f" xlink:type="arc" order="32"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001683471_XRPRiskMember_019dcf58-c6e0-7f80-903f-ce5739e14e44" xlink:href="ck0001683471-20260429.xsd#ck0001683471_XRPRiskMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oef_AllRisksMember" xlink:to="loc_ck0001683471_XRPRiskMember_019dcf58-c6e0-7f80-903f-ce5739e14e44" xlink:type="arc" order="33"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001683471_XRPRiskNewTechnologyRiskMember_019dcf58-c6e0-70d2-a0da-46e90400e1cf" xlink:href="ck0001683471-20260429.xsd#ck0001683471_XRPRiskNewTechnologyRiskMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oef_AllRisksMember" xlink:to="loc_ck0001683471_XRPRiskNewTechnologyRiskMember_019dcf58-c6e0-70d2-a0da-46e90400e1cf" xlink:type="arc" order="34"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001683471_XRPRiskSupplyAndDemandOfXRPRiskMember_019dcf58-c6e0-78ec-a51c-a658a30fcac6" xlink:href="ck0001683471-20260429.xsd#ck0001683471_XRPRiskSupplyAndDemandOfXRPRiskMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oef_AllRisksMember" xlink:to="loc_ck0001683471_XRPRiskSupplyAndDemandOfXRPRiskMember_019dcf58-c6e0-78ec-a51c-a658a30fcac6" xlink:type="arc" order="35"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001683471_XRPRiskAdoptionAndUseOfXRPRiskMember_019dcf58-c6e0-78dc-bc72-ba0a2d035c6c" xlink:href="ck0001683471-20260429.xsd#ck0001683471_XRPRiskAdoptionAndUseOfXRPRiskMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oef_AllRisksMember" xlink:to="loc_ck0001683471_XRPRiskAdoptionAndUseOfXRPRiskMember_019dcf58-c6e0-78dc-bc72-ba0a2d035c6c" xlink:type="arc" order="36"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001683471_XRPRiskTheRegulatoryEnvironmentRelatingToXRPRiskMember_019dcf58-c6e0-74fd-956c-d3a481267d23" xlink:href="ck0001683471-20260429.xsd#ck0001683471_XRPRiskTheRegulatoryEnvironmentRelatingToXRPRiskMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oef_AllRisksMember" xlink:to="loc_ck0001683471_XRPRiskTheRegulatoryEnvironmentRelatingToXRPRiskMember_019dcf58-c6e0-74fd-956c-d3a481267d23" xlink:type="arc" order="37"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001683471_XRPRiskCybersecurityRiskMember_019dcf58-c6e0-7701-a3bf-f43e7d3a9f67" xlink:href="ck0001683471-20260429.xsd#ck0001683471_XRPRiskCybersecurityRiskMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oef_AllRisksMember" xlink:to="loc_ck0001683471_XRPRiskCybersecurityRiskMember_019dcf58-c6e0-7701-a3bf-f43e7d3a9f67" xlink:type="arc" order="38"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001683471_ExposureRiskMember_019dcf58-c6e0-74ba-875c-0ffe2585422f" xlink:href="ck0001683471-20260429.xsd#ck0001683471_ExposureRiskMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oef_AllRisksMember" xlink:to="loc_ck0001683471_ExposureRiskMember_019dcf58-c6e0-74ba-875c-0ffe2585422f" xlink:type="arc" order="39"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001683471_CalculationMethodologyRiskMember_019dcf58-c6e0-7ab7-b94e-2d1519d1723d" xlink:href="ck0001683471-20260429.xsd#ck0001683471_CalculationMethodologyRiskMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oef_AllRisksMember" xlink:to="loc_ck0001683471_CalculationMethodologyRiskMember_019dcf58-c6e0-7ab7-b94e-2d1519d1723d" xlink:type="arc" order="40"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001683471_CashTransactionRiskMember_019dcf58-c6e0-75e2-9b4c-4abbc09298c2" xlink:href="ck0001683471-20260429.xsd#ck0001683471_CashTransactionRiskMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oef_AllRisksMember" xlink:to="loc_ck0001683471_CashTransactionRiskMember_019dcf58-c6e0-75e2-9b4c-4abbc09298c2" xlink:type="arc" order="41"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001683471_ClearingBrokerRiskMember_019dcf58-c6e0-7163-8caa-6adcf3070d3f" xlink:href="ck0001683471-20260429.xsd#ck0001683471_ClearingBrokerRiskMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oef_AllRisksMember" xlink:to="loc_ck0001683471_ClearingBrokerRiskMember_019dcf58-c6e0-7163-8caa-6adcf3070d3f" xlink:type="arc" order="42"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001683471_CollateralSecuritiesRiskMember_019dcf58-c6e0-78c5-93e9-6b48bd38157a" xlink:href="ck0001683471-20260429.xsd#ck0001683471_CollateralSecuritiesRiskMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oef_AllRisksMember" xlink:to="loc_ck0001683471_CollateralSecuritiesRiskMember_019dcf58-c6e0-78c5-93e9-6b48bd38157a" xlink:type="arc" order="43"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001683471_CommodityPoolRegulatoryRiskMember_019dcf58-c6e0-7d19-b32c-f8f13b553ac1" xlink:href="ck0001683471-20260429.xsd#ck0001683471_CommodityPoolRegulatoryRiskMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oef_AllRisksMember" xlink:to="loc_ck0001683471_CommodityPoolRegulatoryRiskMember_019dcf58-c6e0-7d19-b32c-f8f13b553ac1" xlink:type="arc" order="44"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001683471_CounterpartyRiskMember_019dcf58-c6e0-7e73-86da-5d8e36b7539d" xlink:href="ck0001683471-20260429.xsd#ck0001683471_CounterpartyRiskMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oef_AllRisksMember" xlink:to="loc_ck0001683471_CounterpartyRiskMember_019dcf58-c6e0-7e73-86da-5d8e36b7539d" xlink:type="arc" order="45"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001683471_CryptoRelatedCompanyRiskMember_019dcf58-c6e0-76f5-a748-af00a306ad30" xlink:href="ck0001683471-20260429.xsd#ck0001683471_CryptoRelatedCompanyRiskMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oef_AllRisksMember" xlink:to="loc_ck0001683471_CryptoRelatedCompanyRiskMember_019dcf58-c6e0-76f5-a748-af00a306ad30" xlink:type="arc" order="46"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001683471_CybersecurityRiskMember_019dcf58-c6e0-7e88-9705-d6f899d0d1be" xlink:href="ck0001683471-20260429.xsd#ck0001683471_CybersecurityRiskMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oef_AllRisksMember" xlink:to="loc_ck0001683471_CybersecurityRiskMember_019dcf58-c6e0-7e88-9705-d6f899d0d1be" xlink:type="arc" order="47"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001683471_DerivativesRiskMember_019dcf58-c6e0-798b-8362-5d823dfd7876" xlink:href="ck0001683471-20260429.xsd#ck0001683471_DerivativesRiskMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oef_AllRisksMember" xlink:to="loc_ck0001683471_DerivativesRiskMember_019dcf58-c6e0-798b-8362-5d823dfd7876" xlink:type="arc" order="48"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001683471_DerivativesRiskFuturesContractsRiskMember_019dcf58-c6e0-7f41-b74d-eb4c0653402c" xlink:href="ck0001683471-20260429.xsd#ck0001683471_DerivativesRiskFuturesContractsRiskMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oef_AllRisksMember" xlink:to="loc_ck0001683471_DerivativesRiskFuturesContractsRiskMember_019dcf58-c6e0-7f41-b74d-eb4c0653402c" xlink:type="arc" order="49"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001683471_DerivativesRiskCostOfFuturesInvestmentRiskMember_019dcf58-c6e0-7e5a-ac86-0dfcd65d29c3" xlink:href="ck0001683471-20260429.xsd#ck0001683471_DerivativesRiskCostOfFuturesInvestmentRiskMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oef_AllRisksMember" xlink:to="loc_ck0001683471_DerivativesRiskCostOfFuturesInvestmentRiskMember_019dcf58-c6e0-7e5a-ac86-0dfcd65d29c3" xlink:type="arc" order="50"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001683471_DerivativesRiskSwapAgreementsRiskMember_019dcf58-c6e0-7eb8-afa0-2d5c79821a5a" xlink:href="ck0001683471-20260429.xsd#ck0001683471_DerivativesRiskSwapAgreementsRiskMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oef_AllRisksMember" xlink:to="loc_ck0001683471_DerivativesRiskSwapAgreementsRiskMember_019dcf58-c6e0-7eb8-afa0-2d5c79821a5a" xlink:type="arc" order="51"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001683471_DerivativesRiskSwapsCapacityRiskMember_019dcf58-c6e0-75ad-91cc-5afdcc8e7a7b" xlink:href="ck0001683471-20260429.xsd#ck0001683471_DerivativesRiskSwapsCapacityRiskMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oef_AllRisksMember" xlink:to="loc_ck0001683471_DerivativesRiskSwapsCapacityRiskMember_019dcf58-c6e0-75ad-91cc-5afdcc8e7a7b" xlink:type="arc" order="52"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001683471_DerivativesRiskOptionsRiskMember_019dcf58-c6e0-7bfa-93a4-753a7071a5bb" xlink:href="ck0001683471-20260429.xsd#ck0001683471_DerivativesRiskOptionsRiskMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oef_AllRisksMember" xlink:to="loc_ck0001683471_DerivativesRiskOptionsRiskMember_019dcf58-c6e0-7bfa-93a4-753a7071a5bb" xlink:type="arc" order="53"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001683471_DerivativesRiskForeignExchangeTradedOptionsRiskMember_019dcf58-c6e0-70e0-90f4-fd5df57626cc" xlink:href="ck0001683471-20260429.xsd#ck0001683471_DerivativesRiskForeignExchangeTradedOptionsRiskMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oef_AllRisksMember" xlink:to="loc_ck0001683471_DerivativesRiskForeignExchangeTradedOptionsRiskMember_019dcf58-c6e0-70e0-90f4-fd5df57626cc" xlink:type="arc" order="54"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001683471_EarlyCloseTradingHaltRiskMember_019dcf58-c6e0-70cc-91e5-bdd18da84d04" xlink:href="ck0001683471-20260429.xsd#ck0001683471_EarlyCloseTradingHaltRiskMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oef_AllRisksMember" xlink:to="loc_ck0001683471_EarlyCloseTradingHaltRiskMember_019dcf58-c6e0-70cc-91e5-bdd18da84d04" xlink:type="arc" order="55"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001683471_ETFRisksMember_019dcf58-c6e0-7e05-9255-adb330c28671" xlink:href="ck0001683471-20260429.xsd#ck0001683471_ETFRisksMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oef_AllRisksMember" xlink:to="loc_ck0001683471_ETFRisksMember_019dcf58-c6e0-7e05-9255-adb330c28671" xlink:type="arc" order="56"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001683471_ETFRisksAuthorizedParticipantsMarketMakersAndLiquidityProvidersConcentrationRiskMember_019dcf58-c6e0-77a5-967c-eefc4c564da8" xlink:href="ck0001683471-20260429.xsd#ck0001683471_ETFRisksAuthorizedParticipantsMarketMakersAndLiquidityProvidersConcentrationRiskMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oef_AllRisksMember" xlink:to="loc_ck0001683471_ETFRisksAuthorizedParticipantsMarketMakersAndLiquidityProvidersConcentrationRiskMember_019dcf58-c6e0-77a5-967c-eefc4c564da8" xlink:type="arc" order="57"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001683471_ETFRisksCostsOfBuyingOrSellingSharesRiskMember_019dcf58-c6e0-7146-b2b0-4ed3977da1cd" xlink:href="ck0001683471-20260429.xsd#ck0001683471_ETFRisksCostsOfBuyingOrSellingSharesRiskMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oef_AllRisksMember" xlink:to="loc_ck0001683471_ETFRisksCostsOfBuyingOrSellingSharesRiskMember_019dcf58-c6e0-7146-b2b0-4ed3977da1cd" xlink:type="arc" order="58"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001683471_ETFRisksSharesMayTradeAtPricesOtherThanNAVRiskMember_019dcf58-c6e0-791e-b473-68e15e6efccc" xlink:href="ck0001683471-20260429.xsd#ck0001683471_ETFRisksSharesMayTradeAtPricesOtherThanNAVRiskMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oef_AllRisksMember" xlink:to="loc_ck0001683471_ETFRisksSharesMayTradeAtPricesOtherThanNAVRiskMember_019dcf58-c6e0-791e-b473-68e15e6efccc" xlink:type="arc" order="59"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001683471_ETFRisksTradingRiskMember_019dcf58-c6e0-7f61-bcf0-f18cb6e8da54" xlink:href="ck0001683471-20260429.xsd#ck0001683471_ETFRisksTradingRiskMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oef_AllRisksMember" xlink:to="loc_ck0001683471_ETFRisksTradingRiskMember_019dcf58-c6e0-7f61-bcf0-f18cb6e8da54" xlink:type="arc" order="60"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001683471_ETPRiskMember_019dcf58-c6e0-7e6b-b9f0-136d12250416" xlink:href="ck0001683471-20260429.xsd#ck0001683471_ETPRiskMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oef_AllRisksMember" xlink:to="loc_ck0001683471_ETPRiskMember_019dcf58-c6e0-7e6b-b9f0-136d12250416" xlink:type="arc" order="61"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001683471_ETPRiskStakingRiskMember_019dcf58-c6e0-7d1b-9f97-66cb05b30c26" xlink:href="ck0001683471-20260429.xsd#ck0001683471_ETPRiskStakingRiskMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oef_AllRisksMember" xlink:to="loc_ck0001683471_ETPRiskStakingRiskMember_019dcf58-c6e0-7d1b-9f97-66cb05b30c26" xlink:type="arc" order="62"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001683471_ForeignSecuritiesRiskMember_019dcf58-c6e0-72fa-86ac-08d92090ca4d" xlink:href="ck0001683471-20260429.xsd#ck0001683471_ForeignSecuritiesRiskMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oef_AllRisksMember" xlink:to="loc_ck0001683471_ForeignSecuritiesRiskMember_019dcf58-c6e0-72fa-86ac-08d92090ca4d" xlink:type="arc" order="63"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001683471_HighPortfolioTurnoverRiskMember_019dcf58-c6e0-783c-82d3-db449dcf1643" xlink:href="ck0001683471-20260429.xsd#ck0001683471_HighPortfolioTurnoverRiskMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oef_AllRisksMember" xlink:to="loc_ck0001683471_HighPortfolioTurnoverRiskMember_019dcf58-c6e0-783c-82d3-db449dcf1643" xlink:type="arc" order="64"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001683471_IndexProviderRiskMember_019dcf58-c6e0-7174-9ec0-e085ad801749" xlink:href="ck0001683471-20260429.xsd#ck0001683471_IndexProviderRiskMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oef_AllRisksMember" xlink:to="loc_ck0001683471_IndexProviderRiskMember_019dcf58-c6e0-7174-9ec0-e085ad801749" xlink:type="arc" order="65"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001683471_LimitedOperatingHistoryRiskMember_019dcf58-c6e0-73ac-8585-11fc181c1fe4" xlink:href="ck0001683471-20260429.xsd#ck0001683471_LimitedOperatingHistoryRiskMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oef_AllRisksMember" xlink:to="loc_ck0001683471_LimitedOperatingHistoryRiskMember_019dcf58-c6e0-73ac-8585-11fc181c1fe4" xlink:type="arc" order="66"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001683471_LiquidityRiskMember_019dcf58-c6e0-761d-8439-bcc3d45a3f3a" xlink:href="ck0001683471-20260429.xsd#ck0001683471_LiquidityRiskMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oef_AllRisksMember" xlink:to="loc_ck0001683471_LiquidityRiskMember_019dcf58-c6e0-761d-8439-bcc3d45a3f3a" xlink:type="arc" order="67"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001683471_MarketRiskMember_019dcf58-c6e0-7bf4-b23d-9b303ddef9e9" xlink:href="ck0001683471-20260429.xsd#ck0001683471_MarketRiskMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oef_AllRisksMember" xlink:to="loc_ck0001683471_MarketRiskMember_019dcf58-c6e0-7bf4-b23d-9b303ddef9e9" xlink:type="arc" order="68"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001683471_PassiveInvestmentRiskMember_019dcf58-c6e0-7dd6-8916-12138a4a15e0" xlink:href="ck0001683471-20260429.xsd#ck0001683471_PassiveInvestmentRiskMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oef_AllRisksMember" xlink:to="loc_ck0001683471_PassiveInvestmentRiskMember_019dcf58-c6e0-7dd6-8916-12138a4a15e0" xlink:type="arc" order="69"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001683471_ReverseRepurchaseAgreementsRiskMember_019dcf58-c6e0-7cdd-9411-63f7905d5756" xlink:href="ck0001683471-20260429.xsd#ck0001683471_ReverseRepurchaseAgreementsRiskMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oef_AllRisksMember" xlink:to="loc_ck0001683471_ReverseRepurchaseAgreementsRiskMember_019dcf58-c6e0-7cdd-9411-63f7905d5756" xlink:type="arc" order="70"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001683471_SubsidiaryInvestmentRiskMember_019dcf58-c6e0-79d4-884e-5ed462fefb89" xlink:href="ck0001683471-20260429.xsd#ck0001683471_SubsidiaryInvestmentRiskMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oef_AllRisksMember" xlink:to="loc_ck0001683471_SubsidiaryInvestmentRiskMember_019dcf58-c6e0-79d4-884e-5ed462fefb89" xlink:type="arc" order="71"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001683471_TaxRiskMember_019dcf58-c6e0-7abb-b5a0-9f58ea649d10" xlink:href="ck0001683471-20260429.xsd#ck0001683471_TaxRiskMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oef_AllRisksMember" xlink:to="loc_ck0001683471_TaxRiskMember_019dcf58-c6e0-7abb-b5a0-9f58ea649d10" xlink:type="arc" order="72"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001683471_TrackingErrorRiskMember_019dcf58-c6e0-723f-bae5-8178ab93ae3b" xlink:href="ck0001683471-20260429.xsd#ck0001683471_TrackingErrorRiskMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oef_AllRisksMember" xlink:to="loc_ck0001683471_TrackingErrorRiskMember_019dcf58-c6e0-723f-bae5-8178ab93ae3b" xlink:type="arc" order="73"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001683471_ValuationRiskMember_019dcf58-c6e0-7bbf-8376-61b745fd9741" xlink:href="ck0001683471-20260429.xsd#ck0001683471_ValuationRiskMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oef_AllRisksMember" xlink:to="loc_ck0001683471_ValuationRiskMember_019dcf58-c6e0-7bbf-8376-61b745fd9741" xlink:type="arc" order="74"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001683471_VolatilityRiskMember_019dcf58-c6e0-7be7-bfd2-be4cd76921f8" xlink:href="ck0001683471-20260429.xsd#ck0001683471_VolatilityRiskMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oef_AllRisksMember" xlink:to="loc_ck0001683471_VolatilityRiskMember_019dcf58-c6e0-7be7-bfd2-be4cd76921f8" xlink:type="arc" order="75"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001683471_WhipsawMarketsRiskMember_019dcf58-c6e0-7790-8eb3-c4838eacbfdd" xlink:href="ck0001683471-20260429.xsd#ck0001683471_WhipsawMarketsRiskMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oef_AllRisksMember" xlink:to="loc_ck0001683471_WhipsawMarketsRiskMember_019dcf58-c6e0-7790-8eb3-c4838eacbfdd" xlink:type="arc" order="76"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001683471_SolanaRiskMember_019dcf58-c6e0-71d8-9913-81ae7e04134e" xlink:href="ck0001683471-20260429.xsd#ck0001683471_SolanaRiskMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oef_AllRisksMember" xlink:to="loc_ck0001683471_SolanaRiskMember_019dcf58-c6e0-71d8-9913-81ae7e04134e" xlink:type="arc" order="77"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001683471_CryptoRelatedInvestmentsTaxRiskMember_019dcf58-c6e0-7e52-9b03-ba0bed2c8c7a" xlink:href="ck0001683471-20260429.xsd#ck0001683471_CryptoRelatedInvestmentsTaxRiskMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oef_AllRisksMember" xlink:to="loc_ck0001683471_CryptoRelatedInvestmentsTaxRiskMember_019dcf58-c6e0-7e52-9b03-ba0bed2c8c7a" xlink:type="arc" order="78"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001683471_DOGERiskMember_019dcf59-e9c5-708a-a978-1e6e369b8699" xlink:href="ck0001683471-20260429.xsd#ck0001683471_DOGERiskMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oef_AllRisksMember" xlink:to="loc_ck0001683471_DOGERiskMember_019dcf59-e9c5-708a-a978-1e6e369b8699" xlink:type="arc" order="79"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001683471_DOGEExposureRiskMember_019dcf59-e9c5-7af7-b3df-e8072f5e4bdf" xlink:href="ck0001683471-20260429.xsd#ck0001683471_DOGEExposureRiskMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oef_AllRisksMember" xlink:to="loc_ck0001683471_DOGEExposureRiskMember_019dcf59-e9c5-7af7-b3df-e8072f5e4bdf" xlink:type="arc" order="80"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001683471_ActiveManagementRiskMember_019dcf59-e9c5-72c9-98d1-3355fad9bb61" xlink:href="ck0001683471-20260429.xsd#ck0001683471_ActiveManagementRiskMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oef_AllRisksMember" xlink:to="loc_ck0001683471_ActiveManagementRiskMember_019dcf59-e9c5-72c9-98d1-3355fad9bb61" xlink:type="arc" order="81"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001683471_DailyCorrelationTrackingRiskMember_019dcf59-e9c5-7a96-8298-095acb77c571" xlink:href="ck0001683471-20260429.xsd#ck0001683471_DailyCorrelationTrackingRiskMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oef_AllRisksMember" xlink:to="loc_ck0001683471_DailyCorrelationTrackingRiskMember_019dcf59-e9c5-7a96-8298-095acb77c571" xlink:type="arc" order="82"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001683471_DerivativesRiskSwapCapacityRiskMember_019dcf59-e9c5-7e7c-8ddc-67387650612c" xlink:href="ck0001683471-20260429.xsd#ck0001683471_DerivativesRiskSwapCapacityRiskMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oef_AllRisksMember" xlink:to="loc_ck0001683471_DerivativesRiskSwapCapacityRiskMember_019dcf59-e9c5-7e7c-8ddc-67387650612c" xlink:type="arc" order="83"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001683471_DerivativesRiskForeignExchangeTradedFuturesAndOptionsRiskMember_019dcf59-e9c5-74fe-9604-345726bd76e4" xlink:href="ck0001683471-20260429.xsd#ck0001683471_DerivativesRiskForeignExchangeTradedFuturesAndOptionsRiskMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oef_AllRisksMember" xlink:to="loc_ck0001683471_DerivativesRiskForeignExchangeTradedFuturesAndOptionsRiskMember_019dcf59-e9c5-74fe-9604-345726bd76e4" xlink:type="arc" order="84"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001683471_EffectsOfCompoundingAndMarketVolatilityRiskMember_019dcf59-e9c5-712f-9e87-6596b533d5c0" xlink:href="ck0001683471-20260429.xsd#ck0001683471_EffectsOfCompoundingAndMarketVolatilityRiskMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oef_AllRisksMember" xlink:to="loc_ck0001683471_EffectsOfCompoundingAndMarketVolatilityRiskMember_019dcf59-e9c5-712f-9e87-6596b533d5c0" xlink:type="arc" order="85"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001683471_IntraDayInvestmentRiskMember_019dcf59-e9c5-779e-9f58-0a92ac57ffbf" xlink:href="ck0001683471-20260429.xsd#ck0001683471_IntraDayInvestmentRiskMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oef_AllRisksMember" xlink:to="loc_ck0001683471_IntraDayInvestmentRiskMember_019dcf59-e9c5-779e-9f58-0a92ac57ffbf" xlink:type="arc" order="86"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001683471_LeverageRiskMember_019dcf59-e9c5-77cc-adbd-14d4ec619b7f" xlink:href="ck0001683471-20260429.xsd#ck0001683471_LeverageRiskMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oef_AllRisksMember" xlink:to="loc_ck0001683471_LeverageRiskMember_019dcf59-e9c5-77cc-adbd-14d4ec619b7f" xlink:type="arc" order="87"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001683471_NonCorrelationRiskMember_019dcf59-e9c5-7462-a4af-1741c97563fc" xlink:href="ck0001683471-20260429.xsd#ck0001683471_NonCorrelationRiskMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oef_AllRisksMember" xlink:to="loc_ck0001683471_NonCorrelationRiskMember_019dcf59-e9c5-7462-a4af-1741c97563fc" xlink:type="arc" order="88"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001683471_SpotDOGEETPRisksMember_019dcf59-e9c5-751a-a405-ffca8faac90c" xlink:href="ck0001683471-20260429.xsd#ck0001683471_SpotDOGEETPRisksMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oef_AllRisksMember" xlink:to="loc_ck0001683471_SpotDOGEETPRisksMember_019dcf59-e9c5-751a-a405-ffca8faac90c" xlink:type="arc" order="89"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001683471_SpotDOGEETPRisksETPRiskMember_019dcf59-e9c5-75ce-b500-653f679a569f" xlink:href="ck0001683471-20260429.xsd#ck0001683471_SpotDOGEETPRisksETPRiskMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oef_AllRisksMember" xlink:to="loc_ck0001683471_SpotDOGEETPRisksETPRiskMember_019dcf59-e9c5-75ce-b500-653f679a569f" xlink:type="arc" order="90"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001683471_SpotDOGEETPRisksExposureConcentrationRiskMember_019dcf59-e9c5-7939-aaf0-1bfaf1902d98" xlink:href="ck0001683471-20260429.xsd#ck0001683471_SpotDOGEETPRisksExposureConcentrationRiskMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oef_AllRisksMember" xlink:to="loc_ck0001683471_SpotDOGEETPRisksExposureConcentrationRiskMember_019dcf59-e9c5-7939-aaf0-1bfaf1902d98" xlink:type="arc" order="91"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001683471_SpotDOGEETPRisksForeignSecuritiesRiskMember_019dcf59-e9c5-716a-adf1-f2072801b5b7" xlink:href="ck0001683471-20260429.xsd#ck0001683471_SpotDOGEETPRisksForeignSecuritiesRiskMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oef_AllRisksMember" xlink:to="loc_ck0001683471_SpotDOGEETPRisksForeignSecuritiesRiskMember_019dcf59-e9c5-716a-adf1-f2072801b5b7" xlink:type="arc" order="92"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001683471_SUIRiskMember_019dcf59-e9c5-71bc-9aef-dc3680ab3a3c" xlink:href="ck0001683471-20260429.xsd#ck0001683471_SUIRiskMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oef_AllRisksMember" xlink:to="loc_ck0001683471_SUIRiskMember_019dcf59-e9c5-71bc-9aef-dc3680ab3a3c" xlink:type="arc" order="93"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001683471_SUIExposureRiskMember_019dcf59-e9c5-7ed5-991c-bd6cbfcfbd27" xlink:href="ck0001683471-20260429.xsd#ck0001683471_SUIExposureRiskMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oef_AllRisksMember" xlink:to="loc_ck0001683471_SUIExposureRiskMember_019dcf59-e9c5-7ed5-991c-bd6cbfcfbd27" xlink:type="arc" order="94"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001683471_SpotSUIETPRisksMember_019dcf59-e9c5-7cc3-b353-c7064144d60c" xlink:href="ck0001683471-20260429.xsd#ck0001683471_SpotSUIETPRisksMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oef_AllRisksMember" xlink:to="loc_ck0001683471_SpotSUIETPRisksMember_019dcf59-e9c5-7cc3-b353-c7064144d60c" xlink:type="arc" order="95"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001683471_SpotSUIETPRisksETPRiskMember_019dcf59-e9c5-7930-8da8-788169718dfe" xlink:href="ck0001683471-20260429.xsd#ck0001683471_SpotSUIETPRisksETPRiskMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oef_AllRisksMember" xlink:to="loc_ck0001683471_SpotSUIETPRisksETPRiskMember_019dcf59-e9c5-7930-8da8-788169718dfe" xlink:type="arc" order="96"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001683471_SpotSUIETPRisksExposureConcentrationRiskMember_019dcf59-e9c5-7402-a194-acf4327b9b9c" xlink:href="ck0001683471-20260429.xsd#ck0001683471_SpotSUIETPRisksExposureConcentrationRiskMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oef_AllRisksMember" xlink:to="loc_ck0001683471_SpotSUIETPRisksExposureConcentrationRiskMember_019dcf59-e9c5-7402-a194-acf4327b9b9c" xlink:type="arc" order="97"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001683471_SpotSUIETPRisksForeignSecuritiesRiskMember_019dcf59-e9c5-7684-9ebf-21fd6ec12980" xlink:href="ck0001683471-20260429.xsd#ck0001683471_SpotSUIETPRisksForeignSecuritiesRiskMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oef_AllRisksMember" xlink:to="loc_ck0001683471_SpotSUIETPRisksForeignSecuritiesRiskMember_019dcf59-e9c5-7684-9ebf-21fd6ec12980" xlink:type="arc" order="98"/>
    <link:loc xlink:type="locator" xlink:label="loc_ck0001683471_SpotSUIETPRisksStakingRiskMember_019dcf59-e9c5-70cc-b02c-01e207a0f334" xlink:href="ck0001683471-20260429.xsd#ck0001683471_SpotSUIETPRisksStakingRiskMember"/>
    <link:definitionArc xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="loc_oef_AllRisksMember" xlink:to="loc_ck0001683471_SpotSUIETPRisksStakingRiskMember_019dcf59-e9c5-70cc-b02c-01e207a0f334" xlink:type="arc" order="99"/>
  </link:definitionLink>
</link:linkbase>