Flash Loan 8Kw3e1…LvSf

What happened6 steps

1Flash-swapped 20.32USDC for 20.38BUCK on Momentum BUCK/USDC pool, paying later.Command 0
2Moved coins around (1 command).Command 1
3Called @bucket/core-interface (buck::discharge_reservoir).Command 2
4Moved coins around (1 command).Command 3
5Repaid the Momentum flash swap with 20.32USDC.Command 4
6Sent coins on (1 command).Command 5

Balance changes1

0xb609…cb60Sender
- -0.00036SUI-$0.00041
- +0.0019USDC+$0.0019

Details

Time (UTC): 2026-09-26 20:43:09 UTC
Before gas: +0.0019USDC$0.0019

Epoch: 1,262
Position in checkpoint: tx 16
Signature: Signed with Ed25519 by 0xb609…cb60
Programmable: 6 commands, 6 inputs
Expires: End of epoch 1262
Size: 1,093 bytes

Commands6

Hover a command to trace its inputs and outputs

0
Flash-swapped 20.32USDC for 20.38BUCK on Momentum BUCK/USDC pool; returns the BUCK and a repayment receipt.
0xce01…128b::lend::momentum_start_b2a<BUCK, USDC>
Momentum BUCK/USDC pool20,317,7310x0000…00060x2375…1b2a0.0Coin<BUCK>to 10.1FlashSwapReceiptto 4
1
Ran coin::into_balance from the Sui framework.
Sui Framework0x0000…0002::coin::into_balance<BUCK>
0.0Result 0.0Balance<BUCK>to 2
2
Called buck::discharge_reservoir in @bucket/core-interface; returns USDC.
@bucket/core-interface@bucket/core-interface::buck::discharge_reservoir<USDC>
BucketProtocol1Result 1Balance<USDC>to 3
3
Ran coin::from_balance from the Sui framework.
Sui Framework0x0000…0002::coin::from_balance<USDC>
2Result 2Coin<USDC>to 4
4
Repaid the lender with 20.32USDC and kept the rest.
0xce01…128b::lend::momentum_finish_b2a<BUCK, USDC>
Momentum BUCK/USDC pool3Result 30.1Result 0.14550x2375…1b2aCoin<USDC>to 5
5
Moved coins through an unlabelled contract (settlement::send).
0x8a53…3137::settlement::send<USDC>
4Result 4

Inputs6Already shown inline above. Full list with kinds and versions.

#	Value	Kind	Used by
0	20,317,731	Pure u64	0
1	Momentum BUCK/USDC poolPool<BUCK, USDC>	Shared, mutablev499761263	0, 4
2	0x0000…0006	Shared, read onlyv1	0
3	0x2375…1b2a	Shared, read onlyv499761252	0, 4
4	BucketProtocolBucketProtocol	Shared, mutablev6365975	2
5	455	Pure u64	4

Object changes5

SUI coinCoin<SUI>ChangedOwned by 0xb609…cb60v1021618369 to v1021618370
Well<USDC>Well<USDC>ChangedOwned by object 0x1b0c…fa80v1021618272 to v1021618370
Reservoir<USDC>Reservoir<USDC>ChangedOwned by object 0xfba4…c735v1021618272 to v1021618370
BucketProtocolBucketProtocolChangedSharedv1021618272 to v1021618370
Momentum BUCK/USDC poolPool<BUCK, USDC>ChangedSharedv1021618365 to v1021618370

Read, not changed0x0000…00060x2375…1b2a

Events6

Momentum2

trade::SwapEventMomentum swap: 20.32USDC in, 20.38BUCK out, repaid later in the same transaction.

sender: 0xb609…cb60
pool_id: 0x4f4c…d133
x_for_y: false
amount_x: 20,380,759,847
amount_y: 20,317,731
sqrt_price_before: 582,378,395,665,739,100
sqrt_price_after: 582,432,481,915,337,100
liquidity: 6,928,905,274,771
tick_index: {"bits":4294898183}
fee_amount: 1,626
protocol_fee: 406
reserve_x: 1,101,304,618,377
reserve_y: 475,968,716

JSON

{
  "sender": "0xb6092855ca74d316ccee7f974000275b3096517ef56ddef6684cf39a6f4bcb60",
  "pool_id": "0x4f4cdb17d66527ddc43f696a5c7ee499374e38a6fbb58b236a7491cf63f4d133",
  "x_for_y": false,
  "amount_x": "20380759847",
  "amount_y": "20317731",
  "sqrt_price_before": "582378395665739138",
  "sqrt_price_after": "582432481915337044",
  "liquidity": "6928905274771",
  "tick_index": {
    "bits": 4294898183
  },
  "fee_amount": "1626",
  "protocol_fee": "406",
  "reserve_x": "1101304618377",
  "reserve_y": "475968716"
}

trade::RepayFlashSwapEventMomentum: repay flash swap event.

sender: 0xb609…cb60
pool_id: 0x4f4c…d133
amount_x_debt: 0
amount_y_debt: 20,317,731
paid_x: 0
paid_y: 20,317,731
reserve_x: 1,101,304,618,377
reserve_y: 496,286,447

JSON

{
  "sender": "0xb6092855ca74d316ccee7f974000275b3096517ef56ddef6684cf39a6f4bcb60",
  "pool_id": "0x4f4cdb17d66527ddc43f696a5c7ee499374e38a6fbb58b236a7491cf63f4d133",
  "amount_x_debt": "0",
  "amount_y_debt": "20317731",
  "paid_x": "0",
  "paid_y": "20317731",
  "reserve_x": "1101304618377",
  "reserve_y": "496286447"
}

@bucket/core-interface4

buck_events::BuckBurnt@bucket/core-interface: buck burnt.
collateral_type
dba34672e30cb065b1f93e3ab55318768fd6fef66c15942c9f7cb846e2f900e7::usdc::USDC
buck_amount
20,380,759,847
JSON
```
{
  "collateral_type": "dba34672e30cb065b1f93e3ab55318768fd6fef66c15942c9f7cb846e2f900e7::usdc::USDC",
  "buck_amount": "20380759847"
}
```
reservoir_events::DischargeReservior@bucket/core-interface: discharge reservior.
outflow_amount
20,380,759
buck_amount
20,380,759,847
JSON
```
{
  "outflow_amount": "20380759",
  "buck_amount": "20380759847"
}
```
well_events::CollectFeeFrom@bucket/core-interface: collect fee from.
well_type
dba34672e30cb065b1f93e3ab55318768fd6fef66c15942c9f7cb846e2f900e7::usdc::USDC
fee_amount
61,142
from
discharge
JSON
```
{
  "well_type": "dba34672e30cb065b1f93e3ab55318768fd6fef66c15942c9f7cb846e2f900e7::usdc::USDC",
  "fee_amount": "61142",
  "from": "discharge"
}
```
well_events::CollectFee@bucket/core-interface: collect fee.
well_type
dba34672e30cb065b1f93e3ab55318768fd6fef66c15942c9f7cb846e2f900e7::usdc::USDC
fee_amount
61,142
JSON
```
{
  "well_type": "dba34672e30cb065b1f93e3ab55318768fd6fef66c15942c9f7cb846e2f900e7::usdc::USDC",
  "fee_amount": "61142"
}
```

Gas

Paid

0.000363316SUI

$0.00041

Computation: 0.0002424SUI
Storage: 0.0120916SUI
Storage rebate: 0.011970684SUIto0xb609…cb60
Kept by storage fund: 0.000120916SUI
Budget: 0.015SUI2.4% used
Gas price: 101 MIST101.00x reference
Paid by: 0xb609…cb60

Raw JSON

Decoded response, 1,944 lines. The API path is /v1/tx/8Kw3e19CGDVBACpT5tDygpecmT2ieeUGccyvXw4QLvSf?raw=1

{
  "digest": "8Kw3e19CGDVBACpT5tDygpecmT2ieeUGccyvXw4QLvSf",
  "kind": "programmable",
  "classification": "flash_loan",
  "classLabel": "Flash Loan",
  "status": {
    "ok": true
  },
  "sender": {
    "address": "0xb6092855ca74d316ccee7f974000275b3096517ef56ddef6684cf39a6f4bcb60",
    "short": "0xb609…cb60",
    "suins": null,
    "label": null,
    "display": "0xb609…cb60"
  },
  "sponsor": null,
  "checkpoint": 327256160,
  "checkpointIndex": 15,
  "epoch": 1262,
  "timestamp": {
    "ms": 1790455389076,
    "iso": "2026-09-26T20:43:09.076Z"
  },
  "protocols": [
    {
      "project": {
        "id": "mvr:@bucket/core-interface",
        "name": "@bucket/core-interface",
        "category": null,
        "url": null,
        "logoUrl": null
      },
      "packages": [
        "0x0b6ba9889bb71abc5fa89e4ad5db12e63bc331dba858019dd8d701bc91184d79"
      ]
    },
    {
      "project": {
        "id": "momentum",
        "name": "Momentum",
        "category": "DEX",
        "url": "https://mmt.finance",
        "logoUrl": null
      },
      "packages": [
        "0xce0158024c35cc367173c4515c742b66b73c4f612dc8c69e4b1b74da6d68128b"
      ]
    }
  ],
  "summary": {
    "sentence": "Borrowed 20.38 BUCK by flash loan from a lender and repaid the vault with 20.32 USDC. The sender kept 0.0019 USDC and paid 0.00036 SUI gas.",
    "steps": [
      {
        "index": 0,
        "sentence": "Flash-swapped 20.32 USDC for 20.38 BUCK on Momentum BUCK/USDC pool, paying later.",
        "commands": [
          0
        ],
        "kind": "flash_loan",
        "project": null