Blumbus Testnet Transaction Hash (Txhash) Details

This is Testnet block explorer of Blumbus Testnet

Transaction Details

Overview State

Transaction Hash: D86532272CF73C224016B032DDF29ED91767804BE2B12D928271F9E6BF9BF543

Status:

Success

Block:

5803161 304,742 Blocks Confirmations

Time:

19 days ago (2025-01-22 13:10:12 UTC)

Action:

Value:

0 DYM (0 USD)

You are viewing a Testnet transaction

DYM price:

0 USD / DYM

Gas limit & Usage by Txn:

781,479 | 488,883 (62.56%)

Fee:

0.01562958 DYM (0 USD)

Fee paid by:

0x989721a433ebd4f6e49dc1687a3316f28b6ba053 0x989721a433ebd4f6e49dc1687a3316f28b6ba053

Memo:

rly(v0.3.4-v2.5.2-relayer-canon-7-rc)

Index

Value

Type

0.0

IBC Update Client ibc.core.client.v1.MsgUpdateClient

👉 Explain here

{"@type": "/ibc.core.client.v1.MsgUpdateClient", "signer": "dym1nztjrfpna020deyac9585vck729khgznek4pvc", "client_id": "07-tendermint-102", "client_message": {"@type": "/ibc.lightclients.tendermint.v1.Header", "signed_header": {"commit": {"round": 0, "height": "338327", "block_id": {"hash": "nNI5GsLqH8hKIqJK8zHT9jD2xucdDIdzi3BVYdbsmxU=", "part_set_header": {"hash": "nNI5GsLqH8hKIqJK8zHT9jD2xucdDIdzi3BVYdbsmxU=", "total": 1}}, "signatures": [{"signature": "kIOmLMbCX+yjPsiyQXfuywmZfWNuisuntWJqvfaZro2+EcaCN3TswqOEJ9Jukj8/N+Om2KSoFjeoySskQdtFCA==", "timestamp": "2025-01-22T13:10:15.718251903Z", "block_id_flag": "BLOCK_ID_FLAG_COMMIT", "validator_address": "xl/CEWwkhP/r105V8i1sk/9mauQ="}]}, "header": {"time": "2025-01-22T13:10:15.718219352Z", "height": "338327", "version": {"app": "0", "block": "11"}, "app_hash": "10u2ZIvdB1EzRmLjzhnKPuvFjoEMpS7TqDKcPyALUpM=", "chain_id": "odysphere_654689-1", "data_hash": "8MqwA2bdc//wxG16cNlAJe4PIOXxnPtzUob414rZi38=", "evidence_hash": "Tlm/JzcrEwS8CxN9G+nVZq1YsVS2prV3ivf0FLHUuEw=", "last_block_id": {"hash": "US18Z30s8YyjGqR59hmpCdlAlsApazo246BKNOQsgwk=", "part_set_header": {"hash": "US18Z30s8YyjGqR59hmpCdlAlsApazo246BKNOQsgwk=", "total": 1}}, "consensus_hash": "AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA=", "validators_hash": "T0B3v7NyM4SUK8QZ+H/2sJdgJk4UHXDWlcQ4kNZ43us=", "last_commit_hash": "c1n29bbsjRRes8nQ4GGMqBDMLCUqdLyo7y9UwBZ7ltk=", "proposer_address": "xl/CEWwkhP/r105V8i1sk/9mauQ=", "last_results_hash": "pcL7YMJ9BSMq4l47rYlxNcRhUqXC10txJ+NWPTUcc/Y=", "next_validators_hash": "T0B3v7NyM4SUK8QZ+H/2sJdgJk4UHXDWlcQ4kNZ43us="}}, "validator_set": {"proposer": {"address": "xl/CEWwkhP/r105V8i1sk/9mauQ=", "pub_key": {"ed25519": "qUYw6uZ6dnMPunSb/y4/QiiXOtpkEYvBfKtsn7Pv03o="}, "voting_power": "1", "proposer_priority": "0"}, "validators": [{"address": "xl/CEWwkhP/r105V8i1sk/9mauQ=", "pub_key": {"ed25519": "qUYw6uZ6dnMPunSb/y4/QiiXOtpkEYvBfKtsn7Pv03o="}, "voting_power": "1", "proposer_priority": "0"}], "total_voting_power": "0"}, "trusted_height": {"revision_height": "338317", "revision_number": "1"}, "trusted_validators": {"proposer": {"address": "xl/CEWwkhP/r105V8i1sk/9mauQ=", "pub_key": {"ed25519": "qUYw6uZ6dnMPunSb/y4/QiiXOtpkEYvBfKtsn7Pv03o="}, "voting_power": "1", "proposer_priority": "0"}, "validators": [{"address": "xl/CEWwkhP/r105V8i1sk/9mauQ=", "pub_key": {"ed25519": "qUYw6uZ6dnMPunSb/y4/QiiXOtpkEYvBfKtsn7Pv03o="}, "voting_power": "1", "proposer_priority": "0"}], "total_voting_power": "0"}}}

/ibc.core.client.v1.MsgUpdateClient

dym1nztjrfpna020deyac9585vck729khgznek4pvc

07-tendermint-102

07-tendermint

1-338327

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

ibc_client

0.0

IBC Acknowledgement (seq_no 30891) ibc.core.channel.v1.MsgAcknowledgement

👉 Explain here

Transfer	00D0E690085058CA4B42FDB628BC817FF71BB0423F1E334ADD6A8188AEDBFB96
to odysphere_654689-1
v
Acknowledgement	D86532272CF73C224016B032DDF29ED91767804BE2B12D928271F9E6BF9BF543

{"@type": "/ibc.core.channel.v1.MsgAcknowledgement", "packet": {"data": "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", "sequence": "30891", "source_port": "transfer", "source_channel": "channel-54", "timeout_height": {"revision_height": "1", "revision_number": "9999"}, "destination_port": "transfer", "timeout_timestamp": "1737551900000000000", "destination_channel": "channel-0"}, "signer": "dym1nztjrfpna020deyac9585vck729khgznek4pvc", "proof_acked": "CrwHCrkHCjZhY2tzL3BvcnRzL3RyYW5zZmVyL2NoYW5uZWxzL2NoYW5uZWwtMC9zZXF1ZW5jZXMvMzA4OTESIAj3VX7VGCb+GNhFEr8k7HUAHtuvISOkd99yoKnzZAp8Gg0IARgBIAEqBQACrKYpIi0IARIGAgSspikgGiEg+uZuSqYktMIm/juObCnaUoFTRUaVgQmagblYZsrCsRkiKwgBEicECKymKSD9RhCjq8Pnd5kLMCMI7U4Jo0A2NEmI4ghZKVglo5SgAyAiLQgBEgYGDKymKSAaISCCmVLFmJVrBJ/5abgRXyyrhfsSc02vGDpNzNG7RFC7oSItCAESBggcrKYpIBohIEiFlTwPVAhV5ulSDOpa4lEckYxD+JbJk62wHM1QNRpwIi0IARIGDESspikgGiEg2HydDxQQXHdPj+OffXk/GGTcMcJTH7xOUPOhonKMYV0iLAgBEigOnAGspikgWjPTaZ6xrU713YgLXIfiCpr3KtAPsPsNJlkpm/gBDoogIiwIARIoELgCrKYpIC0wn4klKpqShRH3qOycHFvVqvVyA6FIVq2eoL4NjOn7ICIsCAESKBKsBKymKSCJBxrZUg4ftK30RyZWChWnO07VjXRCr1FcpoSriVJmgiAiLAgBEigUhAmspikgbL0aYpa9G/2jdnjfUAtwd6MVUOwnvqfCUaGH3/EPkt8gIiwIARIoFoAQrKYpIHUDUcepgqp317CEwL7ksqKICyiMPGwFB3cVG2yblApKICIuCAESBxjSFqymKSAaISDdHy0a6TaWL1M1+fJjucd96eJLMMyIIK7iafnf1OaJfCIuCAESBxqgJqymKSAaISAfwj8118a2xH2qLzLnNeg4YrjuetVh6uI7wwhJOnfiNCIuCAESBxyEQqymKSAaISBQT5fOvzCSzck/95A0TsShF1XiYcoWkHswn3d9ow/6XCIvCAESCB7AiQGspikgGiEg4+8pqC8eUKgSm9tCMgvi16shmITh7HS2tSulh5Aehe8iLQgBEikg5oICrKYpIOfhWHQ9nvosEyxmuYtjaVpOODFiUuPreRSagrCTU7fRICItCAESKSKy5AOspikgsAjE3nxjoIsBI79wqu7N1nCxblVVGF+dzJ91jubinYsgIi8IARIIJOj3DaymKSAaISAIWWQxjx8i1267kUSyN6lWq0KUn7ZEEHOC6Kqehr58qiIvCAESCCb6rhWspikgGiEgpcuxRhwSlCEiJ2AowFAv8BQ+DW2J3V9LkP9TdDC8Jb0K/AEK+QEKA2liYxIg9ga/InpffuQj89D0XS9IaPk3RigRLRzxonmazpdJ4PEaCQgBGAEgASoBACIlCAESIQGZwtZGtj4v3LYRLQmdNUsRJQvlnPWFEKeTSGrkYvNrkiInCAESAQEaIIc+/8YyZjccvsNI2Ed/sdeGQ8ARINKV5KhsdT5V8FluIiUIARIhAf2LofjSDzLoP24pIT5VDg0wnhN9oueEsMubbSYcqP8iIiUIARIhAdHpCC3I3QrWGTHpcGvyBCV/b9q9bDHyYx/1IJrxj9XbIicIARIBARogcaW1hWXFrSfEWk5VyaU2Z/AQ/4+lkPKMI2DDwtuFfQ8=", "proof_height": {"revision_height": "338327", "revision_number": "1"}, "acknowledgement": "eyJyZXN1bHQiOiJBUT09In0="}

{"denom":"adym","amount":"9990000000000000000","sender":"dym1f9h8wwz38rpg5yjduf9zp854nndzays9ufxn5w","receiver":"ody1f9h8wwz38rpg5yjduf9zp854nndzays9dc45rs","memo":"{\"denom_metadata\":{\"description\":\"Native protocol token of Dymension: DYM (adym)\",\"denom_units\":[{\"denom\":\"adym\"},{\"denom\":\"DYM\",\"exponent\":18}],\"base\":\"adym\",\"display\":\"DYM\",\"name\":\"DYM\",\"symbol\":\"DYM\"}}"}

/ibc.core.channel.v1.MsgAcknowledgement

dym1nztjrfpna020deyac9585vck729khgznek4pvc

9999-1

1737551900000000000

30891

transfer

channel-54

transfer

channel-0

ORDER_UNORDERED

connection-66

ibc_channel

odysphere_654689-1

PENDING

transfer

channel-54

transfer

channel-0

30891

338327

ON_ACK

success

adym

9990000000000000000

dym1f9h8wwz38rpg5yjduf9zp854nndzays9ufxn5w

ody1f9h8wwz38rpg5yjduf9zp854nndzays9dc45rs

{"denom_metadata":{"description":"Native protocol token of Dymension: DYM (adym)","denom_units":[{"denom":"adym"},{"denom":"DYM","exponent":18}],"base":"adym","display":"DYM","name":"DYM","symbol":"DYM"}}

0.0

IBC Acknowledgement (seq_no 30890) ibc.core.channel.v1.MsgAcknowledgement

👉 Explain here

Transfer	4D95A5589832B37308EDF1E3635BAE769F8DF1411C8A7E44D0548916FA2B5632
to odysphere_654689-1
v
Acknowledgement	D86532272CF73C224016B032DDF29ED91767804BE2B12D928271F9E6BF9BF543

{"@type": "/ibc.core.channel.v1.MsgAcknowledgement", "packet": {"data": "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", "sequence": "30890", "source_port": "transfer", "source_channel": "channel-54", "timeout_height": {"revision_height": "1", "revision_number": "9999"}, "destination_port": "transfer", "timeout_timestamp": "1737551900000000000", "destination_channel": "channel-0"}, "signer": "dym1nztjrfpna020deyac9585vck729khgznek4pvc", "proof_acked": "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", "proof_height": {"revision_height": "338327", "revision_number": "1"}, "acknowledgement": "eyJyZXN1bHQiOiJBUT09In0="}

{"denom":"adym","amount":"10000000000000000000","sender":"dym1lasg8urqmwh6enhrr97tx6x994xed3vevq4087","receiver":"ody1lasg8urqmwh6enhrr97tx6x994xed3vea3xgsq","memo":"{\"denom_metadata\":{\"description\":\"Native protocol token of Dymension: DYM (adym)\",\"denom_units\":[{\"denom\":\"adym\"},{\"denom\":\"DYM\",\"exponent\":18}],\"base\":\"adym\",\"display\":\"DYM\",\"name\":\"DYM\",\"symbol\":\"DYM\"}}"}

/ibc.core.channel.v1.MsgAcknowledgement

dym1nztjrfpna020deyac9585vck729khgznek4pvc

9999-1

1737551900000000000

30890

transfer

channel-54

transfer

channel-0

ORDER_UNORDERED

connection-66

ibc_channel

odysphere_654689-1

PENDING

transfer

channel-54

transfer

channel-0

30890

338327

ON_ACK

success

adym

10000000000000000000

dym1lasg8urqmwh6enhrr97tx6x994xed3vevq4087

ody1lasg8urqmwh6enhrr97tx6x994xed3vea3xgsq

Advanced

Summary of state change recorded in the end of block

(therefore may contains addresses other than appeared within this transaction)

Address	Denom	Before	After
0x93354845030274cd4bf1686abd60ab28ec52e1a7 0x93354845030274cd4bf1686abd60ab28ec52e1a7	DYM	81,154,789.651684628971413664	81,154,803.337960358753762706
0x989721a433ebd4f6e49dc1687a3316f28b6ba053 0x989721a433ebd4f6e49dc1687a3316f28b6ba053	DYM	647.6460483	647.63041872
0xdc6f17bbec824fff8f86587966b2047db6ab7367 0xdc6f17bbec824fff8f86587966b2047db6ab7367	DYM	0	0
0xf1829676db577682e944fc3493d451b67ff3e29f 0xf1829676db577682e944fc3493d451b67ff3e29f	DYM	0	0.01562958

message > action

message > sender

update_client > client_id

update_client > client_type

update_client > consensus_height

update_client > consensus_heights

update_client > header

message > module

message > action

message > sender

acknowledge_packet > packet_timeout_height

acknowledge_packet > packet_timeout_timestamp

acknowledge_packet > packet_sequence

acknowledge_packet > packet_src_port

acknowledge_packet > packet_src_channel

acknowledge_packet > packet_dst_port

acknowledge_packet > packet_dst_channel

acknowledge_packet > packet_channel_ordering

acknowledge_packet > packet_connection

acknowledge_packet > connection_id

message > module

delayedack > rollapp_id

delayedack > status

delayedack > source_port

delayedack > source_channel

delayedack > destination_port

delayedack > destination_channel

delayedack > packet_sequence

delayedack > proof_height

delayedack > type

delayedack > acknowledgement

delayedack > packet_data_denom

delayedack > packet_data_amount

delayedack > packet_data_sender

delayedack > packet_data_receiver

delayedack > packet_data_memo

message > action

message > sender

acknowledge_packet > packet_timeout_height

acknowledge_packet > packet_timeout_timestamp

acknowledge_packet > packet_sequence

acknowledge_packet > packet_src_port

acknowledge_packet > packet_src_channel

acknowledge_packet > packet_dst_port

acknowledge_packet > packet_dst_channel

acknowledge_packet > packet_channel_ordering

acknowledge_packet > packet_connection

acknowledge_packet > connection_id

message > module

delayedack > rollapp_id

delayedack > status

delayedack > source_port

delayedack > source_channel

delayedack > destination_port

delayedack > destination_channel

delayedack > packet_sequence

delayedack > proof_height

delayedack > type

delayedack > acknowledgement

delayedack > packet_data_denom

delayedack > packet_data_amount

delayedack > packet_data_sender

delayedack > packet_data_receiver

delayedack > packet_data_memo