Transaction

What happened, step by step

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

1. cosm_rc1.testnet to eth.fakes.testnet

   ft_transfer_call() with 1 yoctoNEAR

   Arguments (350 bytes)

   {
     "receiver_id": "veax-dex13.testnet",
     "amount": "10000000000000000000",
     "msg": "[\"Deposit\",{\"SwapExactIn\":{\"token_in\":\"eth.fakes.testnet\",\"token_out\":\"wbtc.fakes.testnet\",\"amount\":\"10000000000000000000\",\"amount_limit\":\"123949672\"}},{\"Withdraw\":[\"eth.fakes.testnet\",\"0\",null]},{\"Withdraw\":[\"wbtc.fakes.testnet\",\"0\",null]}]"
   }

   Logs (1)

   Transfer 10000000000000000000 from cosm_rc1.testnet to veax-dex13.testnet

2. eth.fakes.testnet to veax-dex13.testnet · failed

   ft_on_transfer()

   Arguments (346 bytes)

   {
     "sender_id": "cosm_rc1.testnet",
     "amount": "10000000000000000000",
     "msg": "[\"Deposit\",{\"SwapExactIn\":{\"token_in\":\"eth.fakes.testnet\",\"token_out\":\"wbtc.fakes.testnet\",\"amount\":\"10000000000000000000\",\"amount_limit\":\"123949672\"}},{\"Withdraw\":[\"eth.fakes.testnet\",\"0\",null]},{\"Withdraw\":[\"wbtc.fakes.testnet\",\"0\",null]}]"
   }

   Smart contract panicked: Error -252647870: Slippage error

   Logs (1)

   EVENT_JSON:{"standard":"veax","version":"1.0.0","event":"deposit","data":{"user":"cosm_rc1.testnet","token_id":"eth.fakes.testnet","amount":"10000000000000000000","balance":"10000000000000000000"}}

3. eth.fakes.testnet to eth.fakes.testnet

   ft_resolve_transfer()

   Arguments (99 bytes)

   {
     "sender_id": "cosm_rc1.testnet",
     "receiver_id": "veax-dex13.testnet",
     "amount": "10000000000000000000"
   }

   Logs (1)

   Refund 10000000000000000000 from veax-dex13.testnet to cosm_rc1.testnet

3 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":"4UmdDKMUFJXS8LEakCfcuTCj4HAUbm4R9SPftbUWKLoF","sender_account_id":"cosm_rc1.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.