diff --git a/CHANGELOG.md b/CHANGELOG.md
index 07fa17e39..7320aba5a 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -14,6 +14,7 @@
         - test/*fullchain* (#190, #196)
         - IexecAccessors (#189, #191, #196)
         - IexecPoco (#196)
+        - `trust` specific field (#201)
         - IexecPocoBoost (#198)
 - Migrate scripts to TypeScript: (#184)
     - `getFunctionSignatures.js`, `common-test-snapshot.js`, `test-storage.js`, `timelock.js`
diff --git a/test/000_fullchain.test.ts b/test/000_fullchain.test.ts
index c48c72c1f..31f971de5 100644
--- a/test/000_fullchain.test.ts
+++ b/test/000_fullchain.test.ts
@@ -117,7 +117,7 @@ describe('Integration tests', function () {
             beneficiary: beneficiary.address,
             callback: callbackAddress,
             volume,
-            trust: workers.length ** 2 - 1,
+            trust: BigInt(workers.length ** 2 - 1),
         });
         const { dealId, schedulerStakePerDeal } = await iexecWrapper.signAndSponsorMatchOrders(
             ...orders.toArray(),
@@ -208,7 +208,7 @@ describe('Integration tests', function () {
             beneficiary: beneficiary.address,
             callback: callbackAddress,
             volume,
-            trust: workers.length ** 2 - 1,
+            trust: BigInt(workers.length ** 2 - 1),
         });
         const { dealId, schedulerStakePerDeal } = await iexecWrapper.signAndMatchOrders(
             ...orders.toArray(),
@@ -296,7 +296,7 @@ describe('Integration tests', function () {
             beneficiary: beneficiary.address,
             callback: callbackAddress,
             volume,
-            trust: 1,
+            trust: 1n,
         });
         const { dealId, schedulerStakePerDeal } = await iexecWrapper.signAndSponsorMatchOrders(
             ...orders.toArray(),
@@ -374,7 +374,7 @@ describe('Integration tests', function () {
             beneficiary: beneficiary.address,
             callback: callbackAddress,
             volume,
-            trust: 1,
+            trust: 1n,
         });
         const { dealId, schedulerStakePerDeal } = await iexecWrapper.signAndMatchOrders(
             ...orders.toArray(),
@@ -450,7 +450,7 @@ describe('Integration tests', function () {
             requester: requester.address,
             tag: teeDealTag,
             volume,
-            trust: 1,
+            trust: 1n,
         });
         const { dealId, dealPrice, schedulerStakePerDeal } = await iexecWrapper.signAndMatchOrders(
             ...orders.toArray(),
@@ -522,7 +522,7 @@ describe('Integration tests', function () {
                     requester: requester.address,
                     tag: standardDealTag,
                     volume,
-                    trust: workerNumber ** 2 - 1,
+                    trust: BigInt(workerNumber ** 2 - 1),
                 });
                 const { dealId, dealPrice, schedulerStakePerDeal } =
                     await iexecWrapper.signAndMatchOrders(...orders.toArray());
@@ -624,7 +624,7 @@ describe('Integration tests', function () {
             requester: requester.address,
             tag: standardDealTag,
             volume,
-            trust: winningWorkers.length,
+            trust: BigInt(winningWorkers.length),
         });
 
         const { dealId, dealPrice, schedulerStakePerDeal } = await iexecWrapper.signAndMatchOrders(
diff --git a/test/200_fullchain-bot.test.ts b/test/200_fullchain-bot.test.ts
index fec2268cf..6a4ce788a 100644
--- a/test/200_fullchain-bot.test.ts
+++ b/test/200_fullchain-bot.test.ts
@@ -111,7 +111,7 @@ describe('Integration tests', function () {
             requester: requester.address,
             tag: standardDealTag,
             volume,
-            trust: 4,
+            trust: 4n,
         });
         const { dealId, dealPrice, schedulerStakePerDeal } = await iexecWrapper.signAndMatchOrders(
             ...orders.toArray(),
diff --git a/test/300_fullchain-reopen.test.ts b/test/300_fullchain-reopen.test.ts
index 0ea76dced..d7a9b5481 100644
--- a/test/300_fullchain-reopen.test.ts
+++ b/test/300_fullchain-reopen.test.ts
@@ -114,7 +114,7 @@ describe('Integration tests', function () {
             requester: requester.address,
             tag: standardDealTag,
             volume,
-            trust: 4,
+            trust: 4n,
         });
         const { dealId, dealPrice, schedulerStakePerDeal } = await iexecWrapper.signAndMatchOrders(
             ...orders.toArray(),
diff --git a/test/byContract/IexecAccessors/IexecAccessorsABILegacy.test.ts b/test/byContract/IexecAccessors/IexecAccessorsABILegacy.test.ts
index e71e61a4c..6ac920435 100644
--- a/test/byContract/IexecAccessors/IexecAccessorsABILegacy.test.ts
+++ b/test/byContract/IexecAccessors/IexecAccessorsABILegacy.test.ts
@@ -4,15 +4,12 @@
 import { SignerWithAddress } from '@nomicfoundation/hardhat-ethers/signers';
 import { loadFixture } from '@nomicfoundation/hardhat-network-helpers';
 import { expect } from 'chai';
-import { ZeroAddress } from 'ethers';
-import { ethers } from 'hardhat';
+import { Wallet, ZeroAddress } from 'ethers';
 import {
-    IexecInterfaceNative,
     IexecInterfaceNativeABILegacy,
     IexecInterfaceNativeABILegacy__factory,
-    IexecInterfaceNative__factory,
 } from '../../../typechain';
-import { OrdersActors, OrdersAssets, OrdersPrices, buildOrders } from '../../../utils/createOrders';
+import { OrdersAssets, OrdersPrices, buildOrders } from '../../../utils/createOrders';
 import {
     ContributionStatusEnum,
     TaskStatusEnum,
@@ -24,19 +21,18 @@ import { IexecWrapper } from '../../utils/IexecWrapper';
 import { loadHardhatFixtureDeployment } from '../../utils/hardhat-fixture-deployer';
 
 const standardDealTag = '0x0000000000000000000000000000000000000000000000000000000000000000';
-const volume = 1;
-const trust = 1;
+const volume = 1n;
+const trust = 1n;
 const categoryId = 1;
-const appPrice = 1000;
-const datasetPrice = 1_000_000;
-const workerpoolPrice = 1_000_000_000;
-const callbackAddress = ethers.Wallet.createRandom().address;
+const appPrice = 1000n;
+const datasetPrice = 1_000_000n;
+const workerpoolPrice = 1_000_000_000n;
+const callbackAddress = Wallet.createRandom().address;
 const dealParams = 'params';
 const { resultDigest } = buildUtf8ResultAndDigest('result');
-const taskIndex = 0;
+const taskIndex = 0n;
 
 let proxyAddress: string;
-let iexecPoco: IexecInterfaceNative;
 let iexecPocoABILegacy: IexecInterfaceNativeABILegacy;
 let iexecWrapper: IexecWrapper;
 let [appAddress, workerpoolAddress, datasetAddress]: string[] = [];
@@ -49,7 +45,6 @@ let [
     anyone,
     worker1,
 ]: SignerWithAddress[] = [];
-let ordersActors: OrdersActors;
 let ordersAssets: OrdersAssets;
 let ordersPrices: OrdersPrices;
 let [dealId, taskId, resultHash, resultSeal]: string[] = [];
@@ -68,14 +63,7 @@ describe('IexecAccessorsABILegacy', function () {
             accounts);
         iexecWrapper = new IexecWrapper(proxyAddress, accounts);
         ({ appAddress, datasetAddress, workerpoolAddress } = await iexecWrapper.createAssets());
-        iexecPoco = IexecInterfaceNative__factory.connect(proxyAddress, anyone);
         iexecPocoABILegacy = IexecInterfaceNativeABILegacy__factory.connect(proxyAddress, anyone);
-        ordersActors = {
-            appOwner: appProvider,
-            datasetOwner: datasetProvider,
-            workerpoolOwner: scheduler,
-            requester: requester,
-        };
         ordersAssets = {
             app: appAddress,
             dataset: datasetAddress,
@@ -142,7 +130,7 @@ describe('IexecAccessorsABILegacy', function () {
     });
 
     it('[ABILegacy] Should return account', async function () {
-        const balanceAmount = 3;
+        const balanceAmount = 3n;
         await iexecWrapper.depositInIexecAccount(requester, balanceAmount);
         const account = await iexecPocoABILegacy.viewAccountABILegacy(requester.address);
         expect(account.length).to.equal(2);
diff --git a/test/byContract/IexecPoco/IexecPoco1.test.ts b/test/byContract/IexecPoco/IexecPoco1.test.ts
index a05b0f25f..79659cf0e 100644
--- a/test/byContract/IexecPoco/IexecPoco1.test.ts
+++ b/test/byContract/IexecPoco/IexecPoco1.test.ts
@@ -349,7 +349,7 @@ describe('IexecPoco1', () => {
 
     describe('Match orders', () => {
         it('Should match orders with: all assets, beneficiary, BoT, callback, replication', async () => {
-            const trust = 3;
+            const trust = 3n;
             const category = 2;
             const params = '<params>';
             // Use orders with full configuration.
@@ -453,7 +453,7 @@ describe('IexecPoco1', () => {
         });
 
         it('[Standard] Should match orders with: all assets, beneficiary, BoT, callback, replication', async () => {
-            const trust = 3;
+            const trust = 3n;
             const category = 2;
             const params = '<params>';
             // Use orders with full configuration.
diff --git a/test/byContract/IexecPoco/IexecPoco2-claim.test.ts b/test/byContract/IexecPoco/IexecPoco2-claim.test.ts
index 4d79bb2d3..054170c2d 100644
--- a/test/byContract/IexecPoco/IexecPoco2-claim.test.ts
+++ b/test/byContract/IexecPoco/IexecPoco2-claim.test.ts
@@ -78,7 +78,7 @@ describe('IexecPoco2#claim', async () => {
             requester: requester.address,
             prices: ordersPrices,
             volume: expectedVolume,
-            trust: 4, // Consensus is reachable with 2 fresh workers
+            trust: 4n, // Consensus is reachable with 2 fresh workers
         });
         const { dealId, taskId, taskIndex, dealPrice, startTime } =
             await iexecWrapper.signAndSponsorMatchOrders(...orders.toArray());
@@ -238,7 +238,7 @@ describe('IexecPoco2#claim', async () => {
             assets: ordersAssets,
             requester: requester.address,
             prices: ordersPrices,
-            trust: 0,
+            trust: 0n,
         });
         const { dealId, taskId, taskIndex } = await iexecWrapper.signAndMatchOrders(
             ...orders.toArray(),
diff --git a/test/byContract/IexecPoco/IexecPoco2-contribute-and-finalize.test.ts b/test/byContract/IexecPoco/IexecPoco2-contribute-and-finalize.test.ts
index f78ad40f3..1ebba9b85 100644
--- a/test/byContract/IexecPoco/IexecPoco2-contribute-and-finalize.test.ts
+++ b/test/byContract/IexecPoco/IexecPoco2-contribute-and-finalize.test.ts
@@ -31,7 +31,7 @@ const datasetPrice = 1_000_000n;
 const workerpoolPrice = 1_000_000_000n;
 const taskPrice = appPrice + datasetPrice + workerpoolPrice;
 const timeRef = BigInt(CONFIG.categories[0].workClockTimeRef);
-const trust = 1;
+const trust = 1n;
 const volume = 1n;
 const teeDealTag = '0x0000000000000000000000000000000000000000000000000000000000000001';
 const standardDealTag = ZeroHash;
@@ -361,7 +361,7 @@ describe('IexecPoco2#contributeAndFinalize', () => {
                 requester: requester.address,
                 prices: ordersPrices,
                 volume,
-                trust: 3,
+                trust: 3n,
                 tag: standardDealTag,
             }).toArray(),
         );
diff --git a/test/byContract/IexecPoco/IexecPoco2-contribute.test.ts b/test/byContract/IexecPoco/IexecPoco2-contribute.test.ts
index 8ea7b88da..4cbc92222 100644
--- a/test/byContract/IexecPoco/IexecPoco2-contribute.test.ts
+++ b/test/byContract/IexecPoco/IexecPoco2-contribute.test.ts
@@ -93,7 +93,7 @@ describe('IexecPoco2#contribute', () => {
             requester: requester.address,
             prices: ordersPrices,
             volume,
-            trust: 0,
+            trust: 0n,
             tag: standardDealTag,
         });
     }
@@ -107,7 +107,7 @@ describe('IexecPoco2#contribute', () => {
                     requester: requester.address,
                     prices: ordersPrices,
                     volume,
-                    trust: 3,
+                    trust: 3n,
                     tag: teeDealTag,
                 }).toArray(),
             );
@@ -212,7 +212,7 @@ describe('IexecPoco2#contribute', () => {
                     requester: requester.address,
                     prices: ordersPrices,
                     volume,
-                    trust: 0,
+                    trust: 0n,
                     tag: teeDealTag,
                 }).toArray(),
             );
@@ -337,7 +337,7 @@ describe('IexecPoco2#contribute', () => {
                     requester: requester.address,
                     prices: ordersPrices,
                     volume,
-                    trust: 3, // so consensus is not yet reached on first contribution
+                    trust: 3n, // so consensus is not yet reached on first contribution
                     tag: standardDealTag,
                 }).toArray(),
             );
@@ -395,7 +395,7 @@ describe('IexecPoco2#contribute', () => {
                     requester: requester.address,
                     prices: ordersPrices,
                     volume,
-                    trust: 0,
+                    trust: 0n,
                     tag: teeDealTag,
                 }).toArray(),
             );
@@ -460,7 +460,7 @@ describe('IexecPoco2#contribute', () => {
                     requester: requester.address,
                     prices: ordersPrices,
                     volume,
-                    trust: 0,
+                    trust: 0n,
                     tag: teeDealTag,
                 }).toArray(),
             );
diff --git a/test/byContract/IexecPoco/IexecPoco2-finalize.test.ts b/test/byContract/IexecPoco/IexecPoco2-finalize.test.ts
index 697a7b922..3fb34c262 100644
--- a/test/byContract/IexecPoco/IexecPoco2-finalize.test.ts
+++ b/test/byContract/IexecPoco/IexecPoco2-finalize.test.ts
@@ -597,7 +597,7 @@ describe('IexecPoco2#finalize', async () => {
             requester: requester.address,
             prices: ordersPrices,
             volume: 1n,
-            trust: 3,
+            trust: 3n,
         });
         const { dealId, taskId, taskIndex } = await iexecWrapper.signAndMatchOrders(
             ...orders.toArray(),
@@ -725,7 +725,7 @@ describe('IexecPoco2#finalize', async () => {
             ...buildOrders({
                 assets: ordersAssets,
                 requester: requester.address,
-                trust: 3,
+                trust: 3n,
             }).toArray(),
         );
         await iexecPoco.initialize(dealId, taskIndex).then((tx) => tx.wait());
diff --git a/test/byContract/IexecPoco/IexecPoco2-reopen.test.ts b/test/byContract/IexecPoco/IexecPoco2-reopen.test.ts
index 7aee3af1e..811593a8a 100644
--- a/test/byContract/IexecPoco/IexecPoco2-reopen.test.ts
+++ b/test/byContract/IexecPoco/IexecPoco2-reopen.test.ts
@@ -73,7 +73,7 @@ describe('IexecPoco2#reopen', async () => {
     }
 
     it('Should reopen task after reveal deadline', async () => {
-        await matchOrdersAndInitializeTask(3); // Multiple workers.
+        await matchOrdersAndInitializeTask(3n); // Multiple workers.
         const resultHash = buildResultHash(taskId, resultDigest);
         const badResultDigest = buildUtf8ResultAndDigest('bad-result').resultDigest;
         const contributions = [
@@ -131,7 +131,7 @@ describe('IexecPoco2#reopen', async () => {
     });
 
     it('Should not reopen task when sender is not the scheduler', async () => {
-        await matchOrdersAndInitializeTask(1);
+        await matchOrdersAndInitializeTask(1n);
         await contribute(worker, resultDigest);
         const task = await iexecPoco.viewTask(taskId);
         // Time travel beyond reveal deadline but before final deadline.
@@ -145,7 +145,7 @@ describe('IexecPoco2#reopen', async () => {
     });
 
     it('Should not reopen task when status is before revealing', async () => {
-        await matchOrdersAndInitializeTask(3);
+        await matchOrdersAndInitializeTask(3n);
         // Only 1 contribution, consensus not reached yet.
         await contribute(worker1, resultDigest);
         const task = await iexecPoco.viewTask(taskId);
@@ -156,7 +156,7 @@ describe('IexecPoco2#reopen', async () => {
     });
 
     it('Should not reopen task when status is after revealing', async () => {
-        await matchOrdersAndInitializeTask(1);
+        await matchOrdersAndInitializeTask(1n);
         const { results, resultDigest } = buildUtf8ResultAndDigest('result');
         await contribute(worker, resultDigest);
         // Move task to the next status (COMPLETED).
@@ -173,7 +173,7 @@ describe('IexecPoco2#reopen', async () => {
     });
 
     it('Should not reopen task after final deadline', async () => {
-        await matchOrdersAndInitializeTask(1);
+        await matchOrdersAndInitializeTask(1n);
         await contribute(worker, resultDigest);
         const task = await iexecPoco.viewTask(taskId);
         // Time travel beyond final deadline.
@@ -187,7 +187,7 @@ describe('IexecPoco2#reopen', async () => {
     });
 
     it('Should not reopen task before reveal deadline', async () => {
-        await matchOrdersAndInitializeTask(1);
+        await matchOrdersAndInitializeTask(1n);
         await contribute(worker, resultDigest);
         const task = await iexecPoco.viewTask(taskId);
         // No time travel.
@@ -200,7 +200,7 @@ describe('IexecPoco2#reopen', async () => {
     });
 
     it('Should not reopen task with at least 1 reveal', async () => {
-        await matchOrdersAndInitializeTask(3);
+        await matchOrdersAndInitializeTask(3n);
         await contribute(worker1, resultDigest);
         await contribute(worker2, resultDigest);
         // Consensus reached, reveal for worker 1.
@@ -223,7 +223,7 @@ describe('IexecPoco2#reopen', async () => {
      * Create orders with the provided trust, match deal, and initialize task.
      * @param trust
      */
-    async function matchOrdersAndInitializeTask(trust: number) {
+    async function matchOrdersAndInitializeTask(trust: bigint) {
         const orders = buildOrders({
             assets: ordersAssets,
             prices: ordersPrices,
diff --git a/test/byContract/IexecPoco/IexecPoco2-reveal.test.ts b/test/byContract/IexecPoco/IexecPoco2-reveal.test.ts
index b613d77ca..b349b9768 100644
--- a/test/byContract/IexecPoco/IexecPoco2-reveal.test.ts
+++ b/test/byContract/IexecPoco/IexecPoco2-reveal.test.ts
@@ -79,7 +79,7 @@ describe('IexecPoco2#reveal', () => {
             requester: requester.address,
             prices: ordersPrices,
             volume,
-            trust: 1,
+            trust: 1n,
             tag: standardDealTag,
         });
         ({ dealId, taskIndex, taskId } = await iexecWrapper.signAndMatchOrders(
@@ -195,7 +195,7 @@ describe('IexecPoco2#reveal', () => {
                 requester: requester.address,
                 prices: ordersPrices,
                 volume,
-                trust: 3,
+                trust: 3n,
                 tag: standardDealTag,
                 salt: ethers.zeroPadValue(ethers.toBeHex(Date.now()), 32), // make
             }).toArray(), // app and dataset orders unique since already matched in
diff --git a/test/byContract/IexecPocoBoost/IexecPocoBoost.test.ts b/test/byContract/IexecPocoBoost/IexecPocoBoost.test.ts
index dc8156dd5..313c11c7d 100644
--- a/test/byContract/IexecPocoBoost/IexecPocoBoost.test.ts
+++ b/test/byContract/IexecPocoBoost/IexecPocoBoost.test.ts
@@ -434,7 +434,7 @@ describe('IexecPocoBoost', function () {
             });
             const { appOrder, datasetOrder, workerpoolOrder, requestOrder } = orders.toObject();
             // Change trust.
-            requestOrder.trust = 1;
+            requestOrder.trust = 1n;
             // Sign & hash orders.
             await signOrders(domain, orders, ordersActors);
             // Run & verify.
@@ -886,7 +886,7 @@ describe('IexecPocoBoost', function () {
                 requester: requester.address,
             });
             // Set bad trust (> 1).
-            orders.requester.trust = 2;
+            orders.requester.trust = 2n;
             await expect(
                 iexecPocoBoostInstance.matchOrdersBoost(...orders.toArray()),
             ).to.be.revertedWith('PocoBoost: Bad trust level');
diff --git a/test/byContract/IexecRelay/IexecRelay.test.ts b/test/byContract/IexecRelay/IexecRelay.test.ts
index b887b637c..17b8752f6 100644
--- a/test/byContract/IexecRelay/IexecRelay.test.ts
+++ b/test/byContract/IexecRelay/IexecRelay.test.ts
@@ -17,7 +17,7 @@ const datasetPrice = 2;
 const workerpoolPrice = 3;
 const volume = 4;
 const category = 5;
-const trust = 6;
+const trust = 6n;
 const tag = ethers.id('tag');
 const salt = ethers.id('salt');
 let sign: string;
diff --git a/utils/createOrders.ts b/utils/createOrders.ts
index b00b118b5..ab8d91743 100644
--- a/utils/createOrders.ts
+++ b/utils/createOrders.ts
@@ -28,7 +28,7 @@ export interface MatchOrdersArgs {
     prices?: OrdersPrices;
     volume?: bigint;
     callback?: string;
-    trust?: number;
+    trust?: bigint;
     category?: number;
     params?: string;
     salt?: string;
@@ -122,7 +122,7 @@ export function createEmptyRequestOrder(): IexecLibOrders_v5.RequestOrderStruct
         volume: 1,
         tag: constants.NULL.BYTES32,
         category: 0,
-        trust: 0,
+        trust: 0n,
         requester: constants.NULL.ADDRESS,
         beneficiary: constants.NULL.ADDRESS,
         callback: constants.NULL.ADDRESS,
@@ -139,7 +139,7 @@ export function createEmptyWorkerpoolOrder(): IexecLibOrders_v5.WorkerpoolOrderS
         volume: 1,
         tag: constants.NULL.BYTES32,
         category: 0,
-        trust: 0,
+        trust: 0n,
         apprestrict: constants.NULL.ADDRESS,
         datasetrestrict: constants.NULL.ADDRESS,
         requesterrestrict: constants.NULL.ADDRESS,