diff --git a/ComputeExamples.md b/ComputeExamples.md
index 19c6bae74..34af7a499 100644
--- a/ComputeExamples.md
+++ b/ComputeExamples.md
@@ -627,7 +627,7 @@ Let's have 5 minute of compute access
       computeEnv.id,
       computeValidUntil,
       providerUrl,
-      await consumerAccount.getAddress()
+      consumerAccount
     )
 ```
 <!--
@@ -655,7 +655,7 @@ Let's have 5 minute of compute access
       providerUrl,
       consumerAccount,
       computeEnv.id,
-      assets[0],
+      assets,
       algo
     )
 
diff --git a/docs/classes/Provider.md b/docs/classes/Provider.md
index 3757738dc..9827405d3 100644
--- a/docs/classes/Provider.md
+++ b/docs/classes/Provider.md
@@ -485,7 +485,7 @@ Initializes the provider for a compute request.
 | `computeEnv` | `string` | The compute environment. |
 | `validUntil` | `number` | The job expiration date. |
 | `providerUri` | `string` | The provider URI. |
-| `accountId` | `string` | caller address |
+| `signer` | `Signer` | caller account |
 | `signal?` | `AbortSignal` | abort signal |
 
 #### Returns
diff --git a/package-lock.json b/package-lock.json
index c07c14309..5d63c6f09 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "@oceanprotocol/lib",
-  "version": "3.4.6",
-  "lockfileVersion": 2,
+  "version": "4.0.0-next.1",
+  "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "@oceanprotocol/lib",
-      "version": "3.4.6",
+      "version": "4.0.0-next.1",
       "license": "Apache-2.0",
       "dependencies": {
         "@oasisprotocol/sapphire-paratime": "^1.3.2",
diff --git a/package.json b/package.json
index 28fbdc232..d9311a1cf 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@oceanprotocol/lib",
   "source": "./src/index.ts",
-  "version": "3.4.6",
+  "version": "4.0.0-next.1",
   "description": "JavaScript client library for Ocean Protocol",
   "main": "./dist/lib.js",
   "umd:main": "dist/lib.umd.js",
diff --git a/src/@types/Compute.ts b/src/@types/Compute.ts
index 81142c7cb..85b5b123b 100644
--- a/src/@types/Compute.ts
+++ b/src/@types/Compute.ts
@@ -22,6 +22,7 @@ export interface ComputeEnvironment {
   storageExpiry: number
   maxJobDuration: number
   lastSeen: number
+  free: boolean
 }
 
 export interface ComputeResult {
@@ -59,7 +60,42 @@ export interface ComputeOutput {
   whitelist?: string[]
 }
 
+export enum FileObjectType {
+  URL = 'url',
+  IPFS = 'ipfs',
+  ARWEAVE = 'arweave'
+}
+
+export enum EncryptMethod {
+  AES = 'AES',
+  ECIES = 'ECIES'
+}
+
+export interface HeadersObject {
+  [key: string]: string
+}
+
+export interface BaseFileObject {
+  type: string
+  encryptedBy?: string
+  encryptMethod?: EncryptMethod
+}
+
+export interface UrlFileObject extends BaseFileObject {
+  url: string
+  method: string
+  headers?: [HeadersObject]
+}
+
+export interface IpfsFileObject extends BaseFileObject {
+  hash: string
+}
+
+export interface ArweaveFileObject extends BaseFileObject {
+  transactionId: string
+}
 export interface ComputeAsset {
+  fileObject?: BaseFileObject // C2D v2
   documentId: string
   serviceId: string
   transferTxId?: string
@@ -67,6 +103,7 @@ export interface ComputeAsset {
 }
 
 export interface ComputeAlgorithm {
+  fileObject?: BaseFileObject // C2D v2
   documentId?: string
   serviceId?: string
   meta?: MetadataAlgorithm
diff --git a/src/services/Provider.ts b/src/services/Provider.ts
index e5e497347..726a03924 100644
--- a/src/services/Provider.ts
+++ b/src/services/Provider.ts
@@ -418,7 +418,7 @@ export class Provider {
    * @param {AbortSignal} signal abort signal
    * @return {Promise<ProviderComputeInitialize>} ProviderComputeInitialize data
    */
-  public async initializeCompute(
+  public async initializeComputeV1(
     assets: ComputeAsset[],
     algorithm: ComputeAlgorithm,
     computeEnv: string,
@@ -470,6 +470,90 @@ export class Provider {
     throw new Error(JSON.stringify(resolvedResponse))
   }
 
+  /** Initializes the provider for a compute request.
+   * @param {ComputeAsset[]} assets The datasets array to initialize compute request.
+   * @param {ComputeAlgorithmber} algorithm The algorithm to use.
+   * @param {string} computeEnv The compute environment.
+   * @param {number} validUntil  The job expiration date.
+   * @param {string} providerUri The provider URI.
+   * @param {Signer} signer caller address
+   * @param {AbortSignal} signal abort signal
+   * @return {Promise<ProviderComputeInitialize>} ProviderComputeInitialize data
+   */
+  public async initializeCompute(
+    assets: ComputeAsset[],
+    algorithm: ComputeAlgorithm,
+    computeEnv: string,
+    validUntil: number,
+    providerUri: string,
+    signer: Signer,
+    signal?: AbortSignal
+  ): Promise<ProviderComputeInitializeResults> {
+    const providerEndpoints = await this.getEndpoints(providerUri)
+    const serviceEndpoints = await this.getServiceEndpoints(
+      providerUri,
+      providerEndpoints
+    )
+
+    // Diff from V1. We might need a signature to get the files object, specially if dealing with confidential evm and template 4
+    // otherwise it can be ignored
+    const consumerAddress = await signer.getAddress()
+    const nonce = (
+      (await this.getNonce(
+        providerUri,
+        consumerAddress,
+        signal,
+        providerEndpoints,
+        serviceEndpoints
+      )) + 1
+    ).toString()
+
+    // same signed message as for start compute (consumer address + did[0] + nonce)
+    let signatureMessage = consumerAddress
+    signatureMessage += assets[0].documentId
+    signatureMessage += nonce
+    const signature = await this.signProviderRequest(signer, signatureMessage)
+
+    const providerData = {
+      datasets: assets,
+      algorithm,
+      compute: { env: computeEnv, validUntil },
+      consumerAddress,
+      signature
+    }
+    const initializeUrl = this.getEndpointURL(serviceEndpoints, 'initializeCompute')
+      ? this.getEndpointURL(serviceEndpoints, 'initializeCompute').urlPath
+      : null
+    if (!initializeUrl) return null
+
+    let response
+    try {
+      response = await fetch(initializeUrl, {
+        method: 'POST',
+        body: JSON.stringify(providerData),
+        headers: { 'Content-Type': 'application/json' },
+        signal
+      })
+    } catch (e) {
+      LoggerInstance.error('Initialize compute failed: ')
+      LoggerInstance.error(e)
+      throw new Error('ComputeJob cannot be initialized')
+    }
+    if (response?.ok) {
+      const params = await response.json()
+      return params
+    }
+    const resolvedResponse = await response.json()
+    LoggerInstance.error(
+      'Initialize compute failed: ',
+      response.status,
+      response.statusText,
+      resolvedResponse
+    )
+    LoggerInstance.error('Payload was:', providerData)
+    throw new Error(JSON.stringify(resolvedResponse))
+  }
+
   /**
    * Gets the download URL.
    * @param {string} did - The DID.
@@ -524,7 +608,7 @@ export class Provider {
     return consumeUrl
   }
 
-  /** Instruct the provider to start a compute job
+  /** Instruct the provider to start a compute job (Old C2D V1) Kept for now, for backwards compatibility
    * @param {string} providerUri The provider URI.
    * @param {Signer} signer The consumer signer object.
    * @param {string} computeEnv The compute environment.
@@ -535,7 +619,7 @@ export class Provider {
    * @param {ComputeOutput} output The compute job output settings.
    * @return {Promise<ComputeJob | ComputeJob[]>} The compute job or jobs.
    */
-  public async computeStart(
+  public async computeStartV1(
     providerUri: string,
     consumer: Signer,
     computeEnv: string,
@@ -607,6 +691,103 @@ export class Provider {
     return null
   }
 
+  /** Instruct the provider to start a compute job (new C2D V2)
+   * @param {string} providerUri The provider URI.
+   * @param {Signer} signer The consumer signer object.
+   * @param {string} computeEnv The compute environment.
+   * @param {ComputeAsset} datasets The dataset to start compute on + additionalDatasets (the additional datasets if that is the case)
+   * @param {ComputeAlgorithm} algorithm The algorithm to start compute with.
+   * @param {AbortSignal} signal abort signal
+   * @param {ComputeOutput} output The compute job output settings.
+   * @param {boolean} freeEnvironment is it a free environment? uses different route
+   * @return {Promise<ComputeJob | ComputeJob[]>} The compute job or jobs.
+   */
+  public async computeStart(
+    providerUri: string,
+    consumer: Signer,
+    computeEnv: string,
+    datasets: ComputeAsset[],
+    algorithm: ComputeAlgorithm,
+    signal?: AbortSignal,
+    output?: ComputeOutput,
+    freeEnvironment?: boolean
+  ): Promise<ComputeJob | ComputeJob[]> {
+    console.log('called new compute start method...')
+    console.log('datasets: ', datasets)
+    console.log('algorithm: ', algorithm)
+    const providerEndpoints = await this.getEndpoints(providerUri)
+    const serviceEndpoints = await this.getServiceEndpoints(
+      providerUri,
+      providerEndpoints
+    )
+    let computeStartUrl = null
+
+    if (freeEnvironment) {
+      computeStartUrl = this.getEndpointURL(serviceEndpoints, 'freeCompute')
+        ? this.getEndpointURL(serviceEndpoints, 'freeCompute').urlPath
+        : null
+    } else {
+      computeStartUrl = this.getEndpointURL(serviceEndpoints, 'computeStart')
+        ? this.getEndpointURL(serviceEndpoints, 'computeStart').urlPath
+        : null
+    }
+
+    const consumerAddress = await consumer.getAddress()
+    const nonce = (
+      (await this.getNonce(
+        providerUri,
+        consumerAddress,
+        signal,
+        providerEndpoints,
+        serviceEndpoints
+      )) + 1
+    ).toString()
+
+    let signatureMessage = consumerAddress
+    signatureMessage += datasets[0].documentId
+    signatureMessage += nonce
+    const signature = await this.signProviderRequest(consumer, signatureMessage)
+    const payload = Object()
+    payload.consumerAddress = consumerAddress
+    payload.signature = signature
+    payload.nonce = nonce
+    payload.environment = computeEnv
+    // kept for backwards compatibility (tests running against existing provider)
+    payload.dataset = datasets[0]
+    // new field for C2D v2
+    payload.datasets = datasets
+    payload.algorithm = algorithm
+    // if (additionalDatasets) payload.additionalDatasets = additionalDatasets
+    if (output) payload.output = output
+    if (!computeStartUrl) return null
+    let response
+    try {
+      response = await fetch(computeStartUrl, {
+        method: 'POST',
+        body: JSON.stringify(payload),
+        headers: { 'Content-Type': 'application/json' },
+        signal
+      })
+    } catch (e) {
+      LoggerInstance.error('Compute start failed:')
+      LoggerInstance.error(e)
+      LoggerInstance.error('Payload was:', payload)
+      throw new Error('HTTP request failed calling Provider')
+    }
+    if (response?.ok) {
+      const params = await response.json()
+      return params
+    }
+    LoggerInstance.error(
+      'Compute start failed: ',
+      response.status,
+      response.statusText,
+      await response.json()
+    )
+    LoggerInstance.error('Payload was:', payload)
+    return null
+  }
+
   /** Instruct the provider to Stop the execution of a to stop a compute job.
    * @param {string} did the asset did
    * @param {string} consumerAddress The consumer address.
@@ -655,7 +836,7 @@ export class Provider {
     const signature = await this.signProviderRequest(signer, signatureMessage)
     const payload = Object()
     payload.signature = signature
-    payload.agreementId = this.noZeroX(agreementId)
+    payload.agreementId = agreementId // this.noZeroX(agreementId) #https://github.com/oceanprotocol/ocean.js/issues/1892
     payload.consumerAddress = consumerAddress
     payload.nonce = nonce
     if (jobId) payload.jobId = jobId
@@ -716,7 +897,7 @@ export class Provider {
       : null
 
     let url = `?consumerAddress=${consumerAddress}`
-    url += (agreementId && `&agreementId=${this.noZeroX(agreementId)}`) || ''
+    url += (agreementId && `&agreementId=${agreementId}`) || '' // ${this.noZeroX(agreementId)} #https://github.com/oceanprotocol/ocean.js/issues/1892
     url += (jobId && `&jobId=${jobId}`) || ''
 
     if (!computeStatusUrl) return null
@@ -841,7 +1022,7 @@ export class Provider {
     signatureMessage += nonce
     const signature = await this.signProviderRequest(consumer, signatureMessage)
     const payload = Object()
-    payload.documentId = this.noZeroX(did)
+    payload.documentId = did // this.noZeroX(did) #https://github.com/oceanprotocol/ocean.js/issues/1892
     payload.consumerAddress = await consumer.getAddress()
     payload.jobId = jobId
     if (signature) payload.signature = signature
diff --git a/src/utils/Assets.ts b/src/utils/Assets.ts
index 0322314d9..513240ae6 100644
--- a/src/utils/Assets.ts
+++ b/src/utils/Assets.ts
@@ -17,6 +17,7 @@ import { ProviderInstance } from '../services/Provider'
 import AccessListFactory from '@oceanprotocol/contracts/artifacts/contracts/accesslists/AccessListFactory.sol/AccessListFactory.json'
 import ERC20Template4 from '@oceanprotocol/contracts/artifacts/contracts/templates/ERC20Template4.sol/ERC20Template4.json'
 import { calculateActiveTemplateIndex } from './Adresses'
+import { FileObjectType } from '../@types'
 
 // import * as hre from 'hardhat'
 
@@ -113,6 +114,15 @@ export async function createAsset(
     mpFeeAddress: ZERO_ADDRESS
   }
 
+  if (
+    !assetUrl.type ||
+    ![FileObjectType.ARWEAVE, FileObjectType.IPFS, FileObjectType.URL].includes(
+      assetUrl.type.toLowerCase()
+    )
+  ) {
+    console.log('Missing or invalid files object type, defaulting to "url"')
+    assetUrl.type = FileObjectType.URL
+  }
   // include fileObject in the DT constructor
   if (config.sdk === 'oasis') {
     datatokenParams.filesObject = assetUrl
diff --git a/test/integration/ComputeExamples.test.ts b/test/integration/ComputeExamples.test.ts
index 4eb58b3ec..492f50e3b 100644
--- a/test/integration/ComputeExamples.test.ts
+++ b/test/integration/ComputeExamples.test.ts
@@ -627,7 +627,7 @@ describe('Compute-to-data example tests', async () => {
       computeEnv.id,
       computeValidUntil,
       providerUrl,
-      await consumerAccount.getAddress()
+      consumerAccount
     )
     /// ```
     /// <!--
@@ -655,7 +655,7 @@ describe('Compute-to-data example tests', async () => {
       providerUrl,
       consumerAccount,
       computeEnv.id,
-      assets[0],
+      assets,
       algo
     )
 
diff --git a/test/integration/ComputeFlow.test.ts b/test/integration/ComputeFlow.test.ts
index 7641e6153..ccc9a2089 100644
--- a/test/integration/ComputeFlow.test.ts
+++ b/test/integration/ComputeFlow.test.ts
@@ -430,7 +430,7 @@ describe('Compute flow tests', async () => {
       computeEnv.id,
       computeValidUntil,
       providerUrl,
-      await consumerAccount.getAddress()
+      consumerAccount
     )
     assert(
       !('error' in providerInitializeComputeResults.algorithm),
@@ -461,7 +461,7 @@ describe('Compute flow tests', async () => {
       providerUrl,
       consumerAccount,
       computeEnv.id,
-      assets[0],
+      assets,
       algo
     )
     freeEnvDatasetTxId = assets[0].transferTxId
@@ -501,7 +501,7 @@ describe('Compute flow tests', async () => {
       computeEnv.id,
       computeValidUntil,
       providerUrl,
-      await consumerAccount.getAddress()
+      consumerAccount
     )
     assert(
       providerInitializeComputeResults.algorithm.validOrder,
@@ -530,7 +530,7 @@ describe('Compute flow tests', async () => {
       providerUrl,
       consumerAccount,
       computeEnv.id,
-      assets[0],
+      assets,
       algo
     )
     assert(computeJobs, 'Cannot start compute job')
@@ -563,7 +563,7 @@ describe('Compute flow tests', async () => {
       computeEnv.id,
       computeValidUntil,
       providerUrl,
-      await consumerAccount.getAddress()
+      consumerAccount
     )
     assert(
       !('error' in providerInitializeComputeResults.algorithm),
@@ -594,7 +594,7 @@ describe('Compute flow tests', async () => {
       providerUrl,
       consumerAccount,
       computeEnv.id,
-      assets[0],
+      assets,
       algo
     )
     paidEnvDatasetTxId = assets[0].transferTxId
@@ -641,7 +641,7 @@ describe('Compute flow tests', async () => {
       computeEnv.id,
       computeValidUntil,
       providerUrl,
-      await consumerAccount.getAddress()
+      consumerAccount
     )
     assert(
       providerInitializeComputeResults.algorithm.validOrder,
@@ -670,7 +670,7 @@ describe('Compute flow tests', async () => {
       providerUrl,
       consumerAccount,
       computeEnv.id,
-      assets[0],
+      assets,
       algo
     )
     assert(computeJobs, 'Cannot start compute job')
@@ -712,7 +712,7 @@ describe('Compute flow tests', async () => {
       computeEnv.id,
       computeValidUntil,
       providerUrl,
-      await consumerAccount.getAddress()
+      consumerAccount
     )
     assert(
       providerInitializeComputeResults.algorithm.validOrder,
@@ -762,7 +762,7 @@ describe('Compute flow tests', async () => {
       providerUrl,
       consumerAccount,
       computeEnv.id,
-      assets[0],
+      assets,
       algo
     )
     // freeEnvDatasetTxId = assets[0].transferTxId
@@ -797,7 +797,7 @@ describe('Compute flow tests', async () => {
       computeEnv.id,
       computeValidUntil,
       providerUrl,
-      await consumerAccount.getAddress()
+      consumerAccount
     )
     assert(
       providerInitializeComputeResults.algorithm.validOrder,
@@ -846,7 +846,7 @@ describe('Compute flow tests', async () => {
       providerUrl,
       consumerAccount,
       computeEnv.id,
-      assets[0],
+      assets,
       algo
     )
     // freeEnvDatasetTxId = assets[0].transferTxId
diff --git a/test/integration/helpers.ts b/test/integration/helpers.ts
index 6e3f7c75d..fac14b9b2 100644
--- a/test/integration/helpers.ts
+++ b/test/integration/helpers.ts
@@ -137,7 +137,8 @@ export async function handleComputeOrder(
   if (config.chainId !== chainID) {
     throw new Error('Chain ID from DDO is different than the configured network.')
   }
-  if (order.providerFee && order.providerFee.providerFeeAmount) {
+  const hasProviderFees = order.providerFee && order.providerFee.providerFeeAmount
+  if (hasProviderFees && Number(order.providerFee.providerFeeAmount) > 0) {
     await approveWei(
       payerAccount,
       config,