Transaction
259ad5ae7f4ffc4a748a949e749812521e0e718eb22ce34c3ade1a95058f854a

Summary

Block

#232,595

Date

8/8 04:11utc(2mo, 16d ago)

Version

Size

746 vB
(828 B)

Locktime

Spendable in block #232,594 or later

Confirmations

10,762

Fee Paid

0.00007742WHIVE

Fee Rate

10.38 sat/vB
(9.351 sat/B)

Days Destroyed

99wd

2 Inputs/16 Outputs

> Input #0 / 1

v0_p2wpkh44582ffb144f527d9d9770695… #8

0.07888966WHIVE

> Input #1 / 1

p2pkhcoinbase-spend55b5a091c77b225b6ae35cd6c… #1

98.00002259WHIVE

Total Input: 98.07891225WHIVE

< Output #0 / 15

p2pkh

asm
OP_DUP OP_HASH160 7ef7eae075daa857b9631be29673dc7e19e44308 OP_EQUALVERIFY OP_CHECKSIG

hex
76a9147ef7eae075daa857b9631be29673dc7e19e4430888ac

0.14462088WHIVE

< Output #1 / 15

p2pkh

asm
OP_DUP OP_HASH160 1d13b530197c2265b255a3739054bee374f22e91 OP_EQUALVERIFY OP_CHECKSIG

hex
76a9141d13b530197c2265b255a3739054bee374f22e9188ac

1.05331243WHIVE

< Output #2 / 15

v0_p2wpkh

asm
0 4240482bbfb14fae1784504ef8e34962f58cfbc9

hex
00144240482bbfb14fae1784504ef8e34962f58cfbc9

10.24266132WHIVE

< Output #3 / 15

p2pkh

asm
OP_DUP OP_HASH160 0a2dd7cf74940c66ba616a3493efd6585d2680fe OP_EQUALVERIFY OP_CHECKSIG

hex
76a9140a2dd7cf74940c66ba616a3493efd6585d2680fe88ac

1.19864467WHIVE

< Output #4 / 15

p2pkh

asm
OP_DUP OP_HASH160 2fd388c38a58d1291451ab31f19ec0a3e608230a OP_EQUALVERIFY OP_CHECKSIG

hex
76a9142fd388c38a58d1291451ab31f19ec0a3e608230a88ac

0.40047495WHIVE

< Output #5 / 15

v0_p2wpkh

asm
0 75b53c63184af35db860a29e5d701586ff8f64b2

hex
001475b53c63184af35db860a29e5d701586ff8f64b2

3.27517132WHIVE

< Output #6 / 15

v0_p2wpkh

asm
0 ed55b0f35f6011e905ef35e51a5ab4c4363a3fa5

hex
0014ed55b0f35f6011e905ef35e51a5ab4c4363a3fa5

0.28659755WHIVE

< Output #7 / 15

p2pkh

asm
OP_DUP OP_HASH160 b4e28e0da66b8c8834155f0dc798b9fe79cf93b0 OP_EQUALVERIFY OP_CHECKSIG

hex
76a914b4e28e0da66b8c8834155f0dc798b9fe79cf93b088ac

0.65662182WHIVE

< Output #8 / 15

v0_p2wpkh

asm
0 60f451ed8a67f5159be5a4b0aab3136f63d57442

hex
001460f451ed8a67f5159be5a4b0aab3136f63d57442

3.36349993WHIVE

< Output #9 / 15

p2pkh

asm
OP_DUP OP_HASH160 acdc84e686d813322d002944cf81dfba9496d202 OP_EQUALVERIFY OP_CHECKSIG

hex
76a914acdc84e686d813322d002944cf81dfba9496d20288ac

2.83841806WHIVE

< Output #10 / 15

p2pkh

asm
OP_DUP OP_HASH160 3acb5db175d086951ac43a992e9c1c6c3e2f1c4c OP_EQUALVERIFY OP_CHECKSIG

hex
76a9143acb5db175d086951ac43a992e9c1c6c3e2f1c4c88ac

54.8409774WHIVE

< Output #11 / 15

p2pkh

asm
OP_DUP OP_HASH160 33a9ac71e283eeb086b115c0decdf555b370c794 OP_EQUALVERIFY OP_CHECKSIG

hex
76a91433a9ac71e283eeb086b115c0decdf555b370c79488ac

0.17651225WHIVE

< Output #12 / 15

v0_p2wpkh

asm
0 dbfebddac42bfe7bf3203d1e902af5547d79c9b8

hex
0014dbfebddac42bfe7bf3203d1e902af5547d79c9b8

0.01375538WHIVE

< Output #13 / 15

v0_p2wpkh

asm
0 bc45f7517f1c882f326a6ae4a010c28b9bb84d7f

hex
0014bc45f7517f1c882f326a6ae4a010c28b9bb84d7f

1.82496425WHIVE

< Output #14 / 15

v0_p2wpkh

asm
0 c50236cb9f00220d768741b3a84d172912ad5515

hex
0014c50236cb9f00220d768741b3a84d172912ad5515

8.28978123WHIVE

< Output #15 / 15

v0_p2wpkh

asm
0 d3b7aadac01df8bfb4475cd1a229ca629539333b

hex
0014d3b7aadac01df8bfb4475cd1a229ca629539333b

9.47282139WHIVE

Total Output: 98.07883483WHIVE

Input Scripts

	Script Sig (asm)
> #0
> #1	304402207abe33b70924c845cf82f132d8ec231aa647587aebc201f1d2c71fa0b6e57855022042e962e8e6289ed361d52c3a4a4afb71c86d840751fbd54ee9d4c911d8f16d8d[ALL] 03fb32f6eb7a2092e3246c296bcf05d404e40eafecde4ec051cc17b07c30a9fbaa

Output Scripts

	Script Pub Key (asm)
< #0	OP_DUP OP_HASH160 7ef7eae075daa857b9631be29673dc7e19e44308 OP_EQUALVERIFY OP_CHECKSIG
< #1	OP_DUP OP_HASH160 1d13b530197c2265b255a3739054bee374f22e91 OP_EQUALVERIFY OP_CHECKSIG
< #2	0 4240482bbfb14fae1784504ef8e34962f58cfbc9
< #3	OP_DUP OP_HASH160 0a2dd7cf74940c66ba616a3493efd6585d2680fe OP_EQUALVERIFY OP_CHECKSIG
< #4	OP_DUP OP_HASH160 2fd388c38a58d1291451ab31f19ec0a3e608230a OP_EQUALVERIFY OP_CHECKSIG
< #5	0 75b53c63184af35db860a29e5d701586ff8f64b2
< #6	0 ed55b0f35f6011e905ef35e51a5ab4c4363a3fa5
< #7	OP_DUP OP_HASH160 b4e28e0da66b8c8834155f0dc798b9fe79cf93b0 OP_EQUALVERIFY OP_CHECKSIG
< #8	0 60f451ed8a67f5159be5a4b0aab3136f63d57442
< #9	OP_DUP OP_HASH160 acdc84e686d813322d002944cf81dfba9496d202 OP_EQUALVERIFY OP_CHECKSIG
< #10	OP_DUP OP_HASH160 3acb5db175d086951ac43a992e9c1c6c3e2f1c4c OP_EQUALVERIFY OP_CHECKSIG
< #11	OP_DUP OP_HASH160 33a9ac71e283eeb086b115c0decdf555b370c794 OP_EQUALVERIFY OP_CHECKSIG
< #12	0 dbfebddac42bfe7bf3203d1e902af5547d79c9b8
< #13	0 bc45f7517f1c882f326a6ae4a010c28b9bb84d7f
< #14	0 c50236cb9f00220d768741b3a84d172912ad5515
< #15	0 d3b7aadac01df8bfb4475cd1a229ca629539333b

Transaction

{
    "txid": "259ad5ae7f4ffc4a748a949e749812521e0e718eb22ce34c3ade1a95058f854a",
    "hash": "11e0206d5258cfc7cb1eb2e688d9a689e658b9085185ce0adc4d1c629f8de1a6",
    "version": 2,
    "size": 828,
    "vsize": 746,
    "weight": 2982,
    "locktime": 232594,
    "vin": [
        {
            "txid": "44582ffb144f527d9d97706955a44dc375e59993a84c3dfc94e09a65f3eaa4c5",
            "vout": 8,
            "scriptSig": {
                "asm": "",
                "hex": ""
            },
            "txinwitness": [
                "304402201ac68cf93f3105c447d0765232d3e59173cbbe4077f55681581945ec6d26d4550220028dfcc4446f9d96ff97ff71e68d840f768606529998b1a86d9aa452cc7b166a01",
                "032c22c6b9431397885d86b236ff40808a269b415d51f6569b1dd860b5914a1bba"
            ],
            "sequence": 4294967294
        },
        {
            "txid": "55b5a091c77b225b6ae35cd6cc1f587c9dce97a1230cd52ec7ff7596fa367e6a",
            "vout": 1,
            "scriptSig": {
                "asm": "304402207abe33b70924c845cf82f132d8ec231aa647587aebc201f1d2c71fa0b6e57855022042e962e8e6289ed361d52c3a4a4afb71c86d840751fbd54ee9d4c911d8f16d8d[ALL] 03fb32f6eb7a2092e3246c296bcf05d404e40eafecde4ec051cc17b07c30a9fbaa",
                "hex": "47304402207abe33b70924c845cf82f132d8ec231aa647587aebc201f1d2c71fa0b6e57855022042e962e8e6289ed361d52c3a4a4afb71c86d840751fbd54ee9d4c911d8f16d8d012103fb32f6eb7a2092e3246c296bcf05d404e40eafecde4ec051cc17b07c30a9fbaa"
            },
            "sequence": 4294967294
        }
    ],
    "vout": [
        {
            "value": 0.14462088,
            "n": 0,
            "scriptPubKey": {
                "asm": "OP_DUP OP_HASH160 7ef7eae075daa857b9631be29673dc7e19e44308 OP_EQUALVERIFY OP_CHECKSIG",
                "hex": "76a9147ef7eae075daa857b9631be29673dc7e19e4430888ac",
                "address": "WaFP1hymjQE9sNh6z4sqBRvETSMWpi9Qtk",
                "type": "pubkeyhash"
            }
        },
        {
            "value": 1.05331243,
            "n": 1,
            "scriptPubKey": {
                "asm": "OP_DUP OP_HASH160 1d13b530197c2265b255a3739054bee374f22e91 OP_EQUALVERIFY OP_CHECKSIG",
                "hex": "76a9141d13b530197c2265b255a3739054bee374f22e9188ac",
                "address": "WRKn5ox9JNNjokhn7kxGVM7LC3oaSGySeh",
                "type": "pubkeyhash"
            }
        },
        {
            "value": 10.24266132,
            "n": 2,
            "scriptPubKey": {
                "asm": "0 4240482bbfb14fae1784504ef8e34962f58cfbc9",
                "hex": "00144240482bbfb14fae1784504ef8e34962f58cfbc9",
                "address": "wv1qgfqys2alk986u9uy2p803c6fvt6ce77fjh74xn",
                "type": "witness_v0_keyhash"
            }
        },
        {
            "value": 1.19864467,
            "n": 3,
            "scriptPubKey": {
                "asm": "OP_DUP OP_HASH160 0a2dd7cf74940c66ba616a3493efd6585d2680fe OP_EQUALVERIFY OP_CHECKSIG",
                "hex": "76a9140a2dd7cf74940c66ba616a3493efd6585d2680fe88ac",
                "address": "WPbrZ5FcscC22PeVUegFTXDFYwGaapiWGu",
                "type": "pubkeyhash"
            }
        },
        {
            "value": 0.40047495,
            "n": 4,
            "scriptPubKey": {
                "asm": "OP_DUP OP_HASH160 2fd388c38a58d1291451ab31f19ec0a3e608230a OP_EQUALVERIFY OP_CHECKSIG",
                "hex": "76a9142fd388c38a58d1291451ab31f19ec0a3e608230a88ac",
                "address": "WT2v3bkVsVLiM7vXt2QbuWswXQicxh8DVm",
                "type": "pubkeyhash"
            }
        },
        {
            "value": 3.27517132,
            "n": 5,
            "scriptPubKey": {
                "asm": "0 75b53c63184af35db860a29e5d701586ff8f64b2",
                "hex": "001475b53c63184af35db860a29e5d701586ff8f64b2",
                "address": "wv1qwk6nccccfte4mwrq52096uq4smlc7e9jrw3x2y",
                "type": "witness_v0_keyhash"
            }
        },
        {
            "value": 0.28659755,
            "n": 6,
            "scriptPubKey": {
                "asm": "0 ed55b0f35f6011e905ef35e51a5ab4c4363a3fa5",
                "hex": "0014ed55b0f35f6011e905ef35e51a5ab4c4363a3fa5",
                "address": "wv1qa42mpu6lvqg7jp00xhj35k45csmr50a92trx46",
                "type": "witness_v0_keyhash"
            }
        },
        {
            "value": 0.65662182,
            "n": 7,
            "scriptPubKey": {
                "asm": "OP_DUP OP_HASH160 b4e28e0da66b8c8834155f0dc798b9fe79cf93b0 OP_EQUALVERIFY OP_CHECKSIG",
                "hex": "76a914b4e28e0da66b8c8834155f0dc798b9fe79cf93b088ac",
                "address": "WfATumTSXqR5zeP2n1PVVQKhBvK7DqKU16",
                "type": "pubkeyhash"
            }
        },
        {
            "value": 3.36349993,
            "n": 8,
            "scriptPubKey": {
                "asm": "0 60f451ed8a67f5159be5a4b0aab3136f63d57442",
                "hex": "001460f451ed8a67f5159be5a4b0aab3136f63d57442",
                "address": "wv1qvr69rmv2vl63txl95jc24vcnda3a2azzzudltc",
                "type": "witness_v0_keyhash"
            }
        },
        {
            "value": 2.83841806,
            "n": 9,
            "scriptPubKey": {
                "asm": "OP_DUP OP_HASH160 acdc84e686d813322d002944cf81dfba9496d202 OP_EQUALVERIFY OP_CHECKSIG",
                "hex": "76a914acdc84e686d813322d002944cf81dfba9496d20288ac",
                "address": "WeS3GruDo24c7eHQrrULQSMC79y1ZNvnYs",
                "type": "pubkeyhash"
            }
        },
        {
            "value": 54.8409774,
            "n": 10,
            "scriptPubKey": {
                "asm": "OP_DUP OP_HASH160 3acb5db175d086951ac43a992e9c1c6c3e2f1c4c OP_EQUALVERIFY OP_CHECKSIG",
                "hex": "76a9143acb5db175d086951ac43a992e9c1c6c3e2f1c4c88ac",
                "address": "WU2uhAqpd2ikVbmuonBo9DLKvwYbVyGcdE",
                "type": "pubkeyhash"
            }
        },
        {
            "value": 0.17651225,
            "n": 11,
            "scriptPubKey": {
                "asm": "OP_DUP OP_HASH160 33a9ac71e283eeb086b115c0decdf555b370c794 OP_EQUALVERIFY OP_CHECKSIG",
                "hex": "76a91433a9ac71e283eeb086b115c0decdf555b370c79488ac",
                "address": "WTPCbqhAH6x9N8qQFv2izi8CJhKbDoF7AZ",
                "type": "pubkeyhash"
            }
        },
        {
            "value": 0.01375538,
            "n": 12,
            "scriptPubKey": {
                "asm": "0 dbfebddac42bfe7bf3203d1e902af5547d79c9b8",
                "hex": "0014dbfebddac42bfe7bf3203d1e902af5547d79c9b8",
                "address": "wv1qm0ltmkky90l8hueq850fq2h4237hnjdcwg9qur",
                "type": "witness_v0_keyhash"
            }
        },
        {
            "value": 1.82496425,
            "n": 13,
            "scriptPubKey": {
                "asm": "0 bc45f7517f1c882f326a6ae4a010c28b9bb84d7f",
                "hex": "0014bc45f7517f1c882f326a6ae4a010c28b9bb84d7f",
                "address": "wv1qh3zlw5tlrjyz7vn2dtj2qyxz3wdmsntltls8lp",
                "type": "witness_v0_keyhash"
            }
        },
        {
            "value": 8.28978123,
            "n": 14,
            "scriptPubKey": {
                "asm": "0 c50236cb9f00220d768741b3a84d172912ad5515",
                "hex": "0014c50236cb9f00220d768741b3a84d172912ad5515",
                "address": "wv1qc5prdjulqq3q6a58gxe6sngh9yf264g4alal29",
                "type": "witness_v0_keyhash"
            }
        },
        {
            "value": 9.47282139,
            "n": 15,
            "scriptPubKey": {
                "asm": "0 d3b7aadac01df8bfb4475cd1a229ca629539333b",
                "hex": "0014d3b7aadac01df8bfb4475cd1a229ca629539333b",
                "address": "wv1q6wm64kkqrhutldz8tng6y2w2v22njvemcjfapk",
                "type": "witness_v0_keyhash"
            }
        }
    ],
    "hex": "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",
    "blockhash": "000000b772da810f8158b9a8909df28e562e4f5852587b189c330bd5e391e91b",
    "confirmations": 10762,
    "time": 1723090264,
    "blocktime": 1723090264
}

UTXOs

[
    {
        "bestblock": "0000000ef3c194eec96d62d96c2101e27f97336c4582d98903f69cfaa3220e48",
        "confirmations": 10762,
        "value": 0.14462088,
        "scriptPubKey": {
            "asm": "OP_DUP OP_HASH160 7ef7eae075daa857b9631be29673dc7e19e44308 OP_EQUALVERIFY OP_CHECKSIG",
            "hex": "76a9147ef7eae075daa857b9631be29673dc7e19e4430888ac",
            "address": "WaFP1hymjQE9sNh6z4sqBRvETSMWpi9Qtk",
            "type": "pubkeyhash"
        },
        "coinbase": false
    },
    {
        "bestblock": "0000000ef3c194eec96d62d96c2101e27f97336c4582d98903f69cfaa3220e48",
        "confirmations": 10762,
        "value": 1.05331243,
        "scriptPubKey": {
            "asm": "OP_DUP OP_HASH160 1d13b530197c2265b255a3739054bee374f22e91 OP_EQUALVERIFY OP_CHECKSIG",
            "hex": "76a9141d13b530197c2265b255a3739054bee374f22e9188ac",
            "address": "WRKn5ox9JNNjokhn7kxGVM7LC3oaSGySeh",
            "type": "pubkeyhash"
        },
        "coinbase": false
    },
    null,
    null,
    {
        "bestblock": "0000000ef3c194eec96d62d96c2101e27f97336c4582d98903f69cfaa3220e48",
        "confirmations": 10762,
        "value": 0.40047495,
        "scriptPubKey": {
            "asm": "OP_DUP OP_HASH160 2fd388c38a58d1291451ab31f19ec0a3e608230a OP_EQUALVERIFY OP_CHECKSIG",
            "hex": "76a9142fd388c38a58d1291451ab31f19ec0a3e608230a88ac",
            "address": "WT2v3bkVsVLiM7vXt2QbuWswXQicxh8DVm",
            "type": "pubkeyhash"
        },
        "coinbase": false
    },
    null,
    {
        "bestblock": "0000000ef3c194eec96d62d96c2101e27f97336c4582d98903f69cfaa3220e48",
        "confirmations": 10762,
        "value": 0.28659755,
        "scriptPubKey": {
            "asm": "0 ed55b0f35f6011e905ef35e51a5ab4c4363a3fa5",
            "hex": "0014ed55b0f35f6011e905ef35e51a5ab4c4363a3fa5",
            "address": "wv1qa42mpu6lvqg7jp00xhj35k45csmr50a92trx46",
            "type": "witness_v0_keyhash"
        },
        "coinbase": false
    },
    {
        "bestblock": "0000000ef3c194eec96d62d96c2101e27f97336c4582d98903f69cfaa3220e48",
        "confirmations": 10762,
        "value": 0.65662182,
        "scriptPubKey": {
            "asm": "OP_DUP OP_HASH160 b4e28e0da66b8c8834155f0dc798b9fe79cf93b0 OP_EQUALVERIFY OP_CHECKSIG",
            "hex": "76a914b4e28e0da66b8c8834155f0dc798b9fe79cf93b088ac",
            "address": "WfATumTSXqR5zeP2n1PVVQKhBvK7DqKU16",
            "type": "pubkeyhash"
        },
        "coinbase": false
    },
    {
        "bestblock": "0000000ef3c194eec96d62d96c2101e27f97336c4582d98903f69cfaa3220e48",
        "confirmations": 10762,
        "value": 3.36349993,
        "scriptPubKey": {
            "asm": "0 60f451ed8a67f5159be5a4b0aab3136f63d57442",
            "hex": "001460f451ed8a67f5159be5a4b0aab3136f63d57442",
            "address": "wv1qvr69rmv2vl63txl95jc24vcnda3a2azzzudltc",
            "type": "witness_v0_keyhash"
        },
        "coinbase": false
    },
    {
        "bestblock": "0000000ef3c194eec96d62d96c2101e27f97336c4582d98903f69cfaa3220e48",
        "confirmations": 10762,
        "value": 2.83841806,
        "scriptPubKey": {
            "asm": "OP_DUP OP_HASH160 acdc84e686d813322d002944cf81dfba9496d202 OP_EQUALVERIFY OP_CHECKSIG",
            "hex": "76a914acdc84e686d813322d002944cf81dfba9496d20288ac",
            "address": "WeS3GruDo24c7eHQrrULQSMC79y1ZNvnYs",
            "type": "pubkeyhash"
        },
        "coinbase": false
    },
    null,
    {
        "bestblock": "0000000ef3c194eec96d62d96c2101e27f97336c4582d98903f69cfaa3220e48",
        "confirmations": 10762,
        "value": 0.17651225,
        "scriptPubKey": {
            "asm": "OP_DUP OP_HASH160 33a9ac71e283eeb086b115c0decdf555b370c794 OP_EQUALVERIFY OP_CHECKSIG",
            "hex": "76a91433a9ac71e283eeb086b115c0decdf555b370c79488ac",
            "address": "WTPCbqhAH6x9N8qQFv2izi8CJhKbDoF7AZ",
            "type": "pubkeyhash"
        },
        "coinbase": false
    },
    null,
    null,
    null,
    null
]

Transaction 259ad5ae7f4ffc4a748a949e749812521e0e718eb22ce34c3ade1a95058f854a

Summary

2 Inputs/16 Outputs

Input Scripts

Output Scripts

Transaction

UTXOs

Transaction
259ad5ae7f4ffc4a748a949e749812521e0e718eb22ce34c3ade1a95058f854a