Transaction

What happened, step by step

A step failed but the transaction finished. Contracts can catch a failed step and carry on.

1. buyer-lp-4821.testnet to wrap.testnet

   ft_transfer_call() with 1 yoctoNEAR

   Arguments (219 bytes)

   {
     "amount": "20000000000000000000000",
     "msg": "{\"pool_ids\":[\"usdt.fakes.testnet|wrap.testnet|2000\"],\"min_amount_out\":\"1\",\"receiver_id\":\"buyer2-lp-4821.testnet\"}",
     "receiver_id": "swap21.audit-buyer1-4821.testnet"
   }

   Logs (1)

   Transfer 20000000000000000000000 from buyer-lp-4821.testnet to swap21.audit-buyer1-4821.testnet

2. wrap.testnet to swap21.audit-buyer1-4821.testnet

   ft_on_transfer()

   Arguments (206 bytes)

   {
     "sender_id": "buyer-lp-4821.testnet",
     "amount": "20000000000000000000000",
     "msg": "{\"pool_ids\":[\"usdt.fakes.testnet|wrap.testnet|2000\"],\"min_amount_out\":\"1\",\"receiver_id\":\"buyer2-lp-4821.testnet\"}"
   }

   Logs (1)

   SWAP_START id=11 sender=buyer-lp-4821.testnet receiver=buyer2-lp-4821.testnet token_in=wrap.testnet gross=20000000000000000000000 fee=200000000000000000000 net=19800000000000000000000 venue=dcl

3. swap21.audit-buyer1-4821.testnet to vault.swap21.audit-buyer1-4821.testnet

   prepare()

   Arguments (270 bytes)

   {
     "ctx": {
       "id": "11",
       "sender": "buyer-lp-4821.testnet",
       "receiver": "buyer2-lp-4821.testnet",
       "token_in": "wrap.testnet",
       "token_out": "usdt.fakes.testnet",
       "pool_ids": [
         "usdt.fakes.testnet|wrap.testnet|2000"
       ],
       "min_amount_out": "1",
       "unwrap": false,
       "amount": "19800000000000000000000"
     }
   }

   Logs (1)

   VAULT_PREPARED id=11

4. swap21.audit-buyer1-4821.testnet to swap21.audit-buyer1-4821.testnet

   on_prepared()

   Arguments (550 bytes)

   {
     "ctx": {
       "id": "11",
       "sender": "buyer-lp-4821.testnet",
       "receiver": "buyer2-lp-4821.testnet",
       "token_in": "wrap.testnet",
       "token_out": "usdt.fakes.testnet",
       "gross": "20000000000000000000000",
       "fee": "200000000000000000000",
       "net": "19800000000000000000000",
       "fee_to": "audit-buyer2-4821.testnet"
     },
     "vctx": {
       "id": "11",
       "sender": "buyer-lp-4821.testnet",
       "receiver": "buyer2-lp-4821.testnet",
       "token_in": "wrap.testnet",
       "token_out": "usdt.fakes.testnet",
       "pool_ids": [
         "usdt.fakes.testnet|wrap.testnet|2000"
       ],
       "min_amount_out": "1",
       "unwrap": false,
       "amount": "19800000000000000000000"
     }
   }

5. swap21.audit-buyer1-4821.testnet to wrap.testnet

   ft_transfer() with 1 yoctoNEAR

   Arguments (103 bytes)

   {
     "receiver_id": "vault.swap21.audit-buyer1-4821.testnet",
     "amount": "19800000000000000000000",
     "memo": null
   }

   Logs (1)

   Transfer 19800000000000000000000 from swap21.audit-buyer1-4821.testnet to vault.swap21.audit-buyer1-4821.testnet

6. swap21.audit-buyer1-4821.testnet to vault.swap21.audit-buyer1-4821.testnet

   swap()

   Arguments (270 bytes)

   {
     "ctx": {
       "id": "11",
       "sender": "buyer-lp-4821.testnet",
       "receiver": "buyer2-lp-4821.testnet",
       "token_in": "wrap.testnet",
       "token_out": "usdt.fakes.testnet",
       "pool_ids": [
         "usdt.fakes.testnet|wrap.testnet|2000"
       ],
       "min_amount_out": "1",
       "unwrap": false,
       "amount": "19800000000000000000000"
     }
   }

7. vault.swap21.audit-buyer1-4821.testnet to wrap.testnet

   ft_balance_of()

   Arguments (55 bytes)

   {
     "account_id": "vault.swap21.audit-buyer1-4821.testnet"
   }

8. vault.swap21.audit-buyer1-4821.testnet to usdt.fakes.testnet

   ft_balance_of()

   Arguments (55 bytes)

   {
     "account_id": "vault.swap21.audit-buyer1-4821.testnet"
   }

9. vault.swap21.audit-buyer1-4821.testnet to vault.swap21.audit-buyer1-4821.testnet

   on_in_balance()

   Arguments (15 bytes)

   {
     "adopt": false
   }

   Logs (1)

   VAULT_DCL_SWAP id=11 amount_in=19800000000000000000000 base_in=0 base_out=0

10. vault.swap21.audit-buyer1-4821.testnet to wrap.testnet

    ft_transfer_call() with 1 yoctoNEAR

    Arguments (257 bytes)

    {
      "receiver_id": "dclv2.ref-dev.testnet",
      "amount": "19800000000000000000000",
      "memo": null,
      "msg": "{\"Swap\":{\"pool_ids\":[\"usdt.fakes.testnet|wrap.testnet|2000\"],\"output_token\":\"usdt.fakes.testnet\",\"min_output_amount\":\"1\",\"skip_unwrap_near\":true}}"
    }

    Logs (1)

    Transfer 19800000000000000000000 from vault.swap21.audit-buyer1-4821.testnet to dclv2.ref-dev.testnet

11. wrap.testnet to dclv2.ref-dev.testnet

    ft_on_transfer()

    Arguments (260 bytes)

    {
      "sender_id": "vault.swap21.audit-buyer1-4821.testnet",
      "amount": "19800000000000000000000",
      "msg": "{\"Swap\":{\"pool_ids\":[\"usdt.fakes.testnet|wrap.testnet|2000\"],\"output_token\":\"usdt.fakes.testnet\",\"min_output_amount\":\"1\",\"skip_unwrap_near\":true}}"
    }

    Logs (1)

    EVENT_JSON:{"data":[{"amount_in":"19799999999999999992016","amount_out":"72319669022195","pool_id":"usdt.fakes.testnet|wrap.testnet|2000","protocol_fee":"7919999999999999997","referral_fee":"0","referral_id":null,"swapper":"vault.swap21.audit-buyer1-4821.testnet","token_in":"wrap.testnet","token_out":"usdt.fakes.testnet","total_fee":"39599999999999999985"}],"event":"swap","standard":"dcl.ref","version":"1.0.0"}

12. dclv2.ref-dev.testnet to usdt.fakes.testnet

    ft_transfer() with 1 yoctoNEAR

    Arguments (94 bytes)

    {
      "receiver_id": "vault.swap21.audit-buyer1-4821.testnet",
      "amount": "72319669022195",
      "memo": null
    }

    Logs (1)

    Transfer 72319669022195 from dclv2.ref-dev.testnet to vault.swap21.audit-buyer1-4821.testnet

13. wrap.testnet to wrap.testnet

    ft_resolve_transfer()

    Arguments (127 bytes)

    {
      "sender_id": "vault.swap21.audit-buyer1-4821.testnet",
      "receiver_id": "dclv2.ref-dev.testnet",
      "amount": "19800000000000000000000"
    }

14. dclv2.ref-dev.testnet to dclv2.ref-dev.testnet

    callback_post_withdraw_asset()

    Arguments (110 bytes)

    {
      "token_id": "usdt.fakes.testnet",
      "user_id": "vault.swap21.audit-buyer1-4821.testnet",
      "amount": "72319669022195"
    }

15. vault.swap21.audit-buyer1-4821.testnet to vault.swap21.audit-buyer1-4821.testnet

    on_dcl()

    Arguments (36 bytes)

    {
      "amount": "19800000000000000000000"
    }

    Logs (1)

    VAULT_DCL_DONE used=19800000000000000000000 filled=true

16. vault.swap21.audit-buyer1-4821.testnet to usdt.fakes.testnet

    ft_balance_of()

    Arguments (55 bytes)

    {
      "account_id": "vault.swap21.audit-buyer1-4821.testnet"
    }

17. vault.swap21.audit-buyer1-4821.testnet to wrap.testnet

    ft_balance_of()

    Arguments (55 bytes)

    {
      "account_id": "vault.swap21.audit-buyer1-4821.testnet"
    }

18. vault.swap21.audit-buyer1-4821.testnet to vault.swap21.audit-buyer1-4821.testnet

    on_balances()

    Arguments (29 bytes)

    {
      "filled": true,
      "sweep": false
    }

    Logs (1)

    VAULT_PAYOUT {"id":"11","status":"ok","receiver":"buyer2-lp-4821.testnet","token_out":"usdt.fakes.testnet","amount_out":"72319669022195","sender":"buyer-lp-4821.testnet","token_in":"wrap.testnet","refunded_in":"0"}

19. vault.swap21.audit-buyer1-4821.testnet to usdt.fakes.testnet · failed

    ft_transfer() with 1 yoctoNEAR

    Arguments (78 bytes)

    {
      "receiver_id": "buyer2-lp-4821.testnet",
      "amount": "72319669022195",
      "memo": null
    }

    Smart contract panicked: The account buyer2-lp-4821.testnet is not registered

20. vault.swap21.audit-buyer1-4821.testnet to vault.swap21.audit-buyer1-4821.testnet

    on_ft_pay()

    Arguments (86 bytes)

    {
      "to": "buyer2-lp-4821.testnet",
      "token": "usdt.fakes.testnet",
      "amount": "72319669022195"
    }

    Logs (1)

    FT_PAY_FAILED_HELD account=buyer2-lp-4821.testnet token=usdt.fakes.testnet amount=72319669022195

21. vault.swap21.audit-buyer1-4821.testnet to vault.swap21.audit-buyer1-4821.testnet

    on_paid()

    Arguments (95 bytes)

    {
      "id": "11",
      "res": {
        "status": "ok",
        "amount_out": "72319669022195",
        "refunded_in": "0"
      },
      "sweep": false
    }

    Logs (1)

    VAULT_DONE id=11 status=ok

22. swap21.audit-buyer1-4821.testnet to swap21.audit-buyer1-4821.testnet

    on_vault()

    Arguments (280 bytes)

    {
      "ctx": {
        "id": "11",
        "sender": "buyer-lp-4821.testnet",
        "receiver": "buyer2-lp-4821.testnet",
        "token_in": "wrap.testnet",
        "token_out": "usdt.fakes.testnet",
        "gross": "20000000000000000000000",
        "fee": "200000000000000000000",
        "net": "19800000000000000000000",
        "fee_to": "audit-buyer2-4821.testnet"
      }
    }

    Logs (1)

    SWAP_OK {"id":"11","sender":"buyer-lp-4821.testnet","receiver":"buyer2-lp-4821.testnet","token_in":"wrap.testnet","token_out":"usdt.fakes.testnet","amount_in":"20000000000000000000000","fee":"200000000000000000000","fee_to":"audit-buyer2-4821.testnet","net":"19800000000000000000000","amount_out":"72319669022195","refunded_in":"0","venue":"dcl","status":"ok"}

23. swap21.audit-buyer1-4821.testnet to wrap.testnet

    ft_transfer() with 1 yoctoNEAR

    Arguments (88 bytes)

    {
      "receiver_id": "audit-buyer2-4821.testnet",
      "amount": "200000000000000000000",
      "memo": null
    }

    Logs (1)

    Transfer 200000000000000000000 from swap21.audit-buyer1-4821.testnet to audit-buyer2-4821.testnet

24. wrap.testnet to wrap.testnet

    ft_resolve_transfer()

    Arguments (121 bytes)

    {
      "sender_id": "buyer-lp-4821.testnet",
      "receiver_id": "swap21.audit-buyer1-4821.testnet",
      "amount": "20000000000000000000000"
    }

25. swap21.audit-buyer1-4821.testnet to swap21.audit-buyer1-4821.testnet

    on_ft_pay()

    Arguments (90 bytes)

    {
      "to": "audit-buyer2-4821.testnet",
      "token": "wrap.testnet",
      "amount": "200000000000000000000"
    }

26 automatic refund steps from the network not shown.

Check this yourself

This page reads FastNEAR's public transaction index and stores nothing. This command asks a NEAR archival node for the same transaction and needs no keys.

curl -s https://archival-rpc.testnet.fastnear.com -H 'Content-Type: application/json' -d '{"jsonrpc":"2.0","id":1,"method":"tx","params":{"tx_hash":"EP3JEPRfdGBM4eaePu84SzqFZtSmPJrFSyx1HL3q7yPD","sender_account_id":"buyer-lp-4821.testnet","wait_until":"FINAL"}}'

Vouch has its own page because testnet.nearblocks.io stopped indexing on 27 Sep 2026, so it can't show newer transactions.