user61002: I'm working on a project to visualize the mempool and (also) check if a transaction is being ignored by miners.
I have my own mining queue, to compare "my first block" with the block that has been mined. Comparing that block with mine I can take many statistics about weather a miner is choosing the best txs and/or is behaving correctly.
Project is currently in development and I have the backend more or less complete. Front-End is incomplete. So sorry if I can give you a link to it.
Today I've found that tx c3f92fe9ec20218a8c3d38b4852c9a88779d3128abdd43ac8c249207d8d3b530 has been ignored 86 times until now. And currently It's the first transaction that should be mined with 786 sat/VByte.
My bitcoin node shows that this transaction entered my mempool 20 hours ago. It's a short transaction with only 764 weight units, one input, one output, 0.24 bitcoins. Nothing special?
Also, my bitcoin node is using the tor network.
The transaction does not appear in known blockchain explorers so it seems that it has not been relayed properly. The transaction has bip125 enabled, so it could be that the person or entity broadcasting that transaction had increased many times the transaction fee.
So I'm wondering what is happening with this transaction. Anybody out there has any idea?
Maybe bitcoin nodes in tor network has poor conectivity with miners?
FYI: These are the blocks who has ignored the transaction up to date:
height: 654568,
totalTxNumMined: 2762,
postitionInQueue: 5
},
{
height: 654569,
totalTxNumMined: 2746,
postitionInQueue: 4
},
{
height: 654570,
totalTxNumMined: 2177,
postitionInQueue: 1
},
{
height: 654571,
totalTxNumMined: 3044,
postitionInQueue: 2
},
{
height: 654572,
totalTxNumMined: 2824,
postitionInQueue: 0
},
{
height: 654574,
totalTxNumMined: 0,
postitionInQueue: 1
},
{
height: 654575,
totalTxNumMined: 2706,
postitionInQueue: 3
},
{
height: 654576,
totalTxNumMined: 2515,
postitionInQueue: 0
},
{
height: 654578,
totalTxNumMined: 3141,
postitionInQueue: 3
},
{
height: 654579,
totalTxNumMined: 3040,
postitionInQueue: 6
},
{
height: 654580,
totalTxNumMined: 2501,
postitionInQueue: 0
},
{
height: 654581,
totalTxNumMined: 2399,
postitionInQueue: 1
},
{
height: 654582,
totalTxNumMined: 2889,
postitionInQueue: 1
},
{
height: 654583,
totalTxNumMined: 2098,
postitionInQueue: 1
},
{
height: 654584,
totalTxNumMined: 2973,
postitionInQueue: 5
},
{
height: 654585,
totalTxNumMined: 2135,
postitionInQueue: 4
},
{
height: 654586,
totalTxNumMined: 2451,
postitionInQueue: 6
},
{
height: 654587,
totalTxNumMined: 2312,
postitionInQueue: 8
},
{
height: 654588,
totalTxNumMined: 2614,
postitionInQueue: 5
},
{
height: 654589,
totalTxNumMined: 2946,
postitionInQueue: 2
},
{
height: 654590,
totalTxNumMined: 3170,
postitionInQueue: 0
},
{
height: 654591,
totalTxNumMined: 2624,
postitionInQueue: 7
},
{
height: 654592,
totalTxNumMined: 2638,
postitionInQueue: 4
},
{
height: 654593,
totalTxNumMined: 2988,
postitionInQueue: 0
},
{
height: 654594,
totalTxNumMined: 2781,
postitionInQueue: 11
},
{
height: 654595,
totalTxNumMined: 2486,
postitionInQueue: 3
},
{
height: 654596,
totalTxNumMined: 2423,
postitionInQueue: 0
},
{
height: 654597,
totalTxNumMined: 2526,
postitionInQueue: 0
},
{
height: 654598,
totalTxNumMined: 2973,
postitionInQueue: 1
},
{
height: 654599,
totalTxNumMined: 2866,
postitionInQueue: 0
},
{
height: 654600,
totalTxNumMined: 2910,
postitionInQueue: 10
},
{
height: 654601,
totalTxNumMined: 1814,
postitionInQueue: 0
},
{
height: 654602,
totalTxNumMined: 2642,
postitionInQueue: 0
},
{
height: 654603,
totalTxNumMined: 2572,
postitionInQueue: 0
},
{
height: 654604,
totalTxNumMined: 2068,
postitionInQueue: 0
},
{
height: 654605,
totalTxNumMined: 2300,
postitionInQueue: 1
},
{
height: 654606,
totalTxNumMined: 1911,
postitionInQueue: 3
},
{
height: 654607,
totalTxNumMined: 2503,
postitionInQueue: 0
},
{
height: 654608,
totalTxNumMined: 2060,
postitionInQueue: 1
},
{
height: 654609,
totalTxNumMined: 1666,
postitionInQueue: 5
},
{
height: 654610,
totalTxNumMined: 2241,
postitionInQueue: 1
},
{
height: 654611,
totalTxNumMined: 1947,
postitionInQueue: 0
},
{
height: 654612,
totalTxNumMined: 1496,
postitionInQueue: 0
},
{
height: 654613,
totalTxNumMined: 2140,
postitionInQueue: 4
},
{
height: 654614,
totalTxNumMined: 2460,
postitionInQueue: 0
},
{
height: 654615,
totalTxNumMined: 1338,
postitionInQueue: 2
},
{
height: 654616,
totalTxNumMined: 2320,
postitionInQueue: 0
},
{
height: 654617,
totalTxNumMined: 2394,
postitionInQueue: 2
},
{
height: 654618,
totalTxNumMined: 2630,
postitionInQueue: 1
},
{
height: 654619,
totalTxNumMined: 2858,
postitionInQueue: 0
},
{
height: 654620,
totalTxNumMined: 2097,
postitionInQueue: 0
},
{
height: 654621,
totalTxNumMined: 2856,
postitionInQueue: 5
},
{
height: 654622,
totalTxNumMined: 2379,
postitionInQueue: 1
},
{
height: 654623,
totalTxNumMined: 2585,
postitionInQueue: 5
},
{
height: 654624,
totalTxNumMined: 2434,
postitionInQueue: 2
},
{
height: 654625,
totalTxNumMined: 2032,
postitionInQueue: 6
},
{
height: 654626,
totalTxNumMined: 2667,
postitionInQueue: 4
},
{
height: 654627,
totalTxNumMined: 2521,
postitionInQueue: 1
},
{
height: 654628,
totalTxNumMined: 2662,
postitionInQueue: 1
},
{
height: 654629,
totalTxNumMined: 2313,
postitionInQueue: 1
},
{
height: 654630,
totalTxNumMined: 1995,
postitionInQueue: 0
},
{
height: 654631,
totalTxNumMined: 2330,
postitionInQueue: 0
},
{
height: 654632,
totalTxNumMined: 2588,
postitionInQueue: 0
},
{
height: 654633,
totalTxNumMined: 2775,
postitionInQueue: 3
},
{
height: 654634,
totalTxNumMined: 2604,
postitionInQueue: 0
},
{
height: 654635,
totalTxNumMined: 2135,
postitionInQueue: 0
},
{
height: 654636,
totalTxNumMined: 2540,
postitionInQueue: 2
},
{
height: 654637,
totalTxNumMined: 2244,
postitionInQueue: 0
},
{
height: 654638,
totalTxNumMined: 1231,
postitionInQueue: 1
},
{
height: 654639,
totalTxNumMined: 2367,
postitionInQueue: 1
},
{
height: 654640,
totalTxNumMined: 2370,
postitionInQueue: 0
},
{
height: 654641,
totalTxNumMined: 2935,
postitionInQueue: 4
},
{
height: 654642,
totalTxNumMined: 2453,
postitionInQueue: 1
},
{
height: 654643,
totalTxNumMined: 2414,
postitionInQueue: 0
},
{
height: 654644,
totalTxNumMined: 3102,
postitionInQueue: 6
},
{
height: 654645,
totalTxNumMined: 3211,
postitionInQueue: 5
},
{
height: 654646,
totalTxNumMined: 2561,
postitionInQueue: 0
},
{
height: 654648,
totalTxNumMined: 1931,
postitionInQueue: 10
},
{
height: 654649,
totalTxNumMined: 2578,
postitionInQueue: 2
},
{
height: 654650,
totalTxNumMined: 2588,
postitionInQueue: 0
},
{
height: 654651,
totalTxNumMined: 3038,
postitionInQueue: 7
},
{
height: 654652,
totalTxNumMined: 1305,
postitionInQueue: 0
},
{
height: 654653,
totalTxNumMined: 2260,
postitionInQueue: 3
},
{
height: 654654,
totalTxNumMined: 2627,
postitionInQueue: 1
},
{
height: 654655,
totalTxNumMined: 1980,
postitionInQueue: 2
},
{
height: 654656,
totalTxNumMined: 2645,
postitionInQueue: 0
},
{
height: 654658,
totalTxNumMined: 2861,
postitionInQueue: 5
}```


user63872: I've checked my node, and it has no evidence of transaction c3f92fe9ec20218a8c3d38b4852c9a88779d3128abdd43ac8c249207d8d3b530.
Additionally, I checked a couple of block explorer websites, and none of them show any result for this transaction.
So it seems that this transaction was either not relayed through the wider network, or it was dropped by network nodes for some reason (network fees have been very high, some mempools might be hitting their memory limits). Without additional information, it is not possible to know.
Generally, we wouldn't expect all miners to ignore a high-fee-rate transaction, so there must be some other issue at play.

user5406: I'm looking into the second tx posted by the asker: fa0dee70658fd00d6d205f673e79e3481cdba57100db576f2a7a308591a1c5e0
It doesn't appear on any explorers. I noticed that all inputs were listed as being vout: 0, e.g. the input list states
{
  "addressIds": [
    "123h581GZtFAucMPpa3hFBCedEifaka5g9"
  ],
  "amount": 76559401,
  "txId": "f9d4f7cc3cae21da8ed864654db405dcbc90a43e811ebafa999aa83c1ec323c9",
  "coinbase": null,
  "voutIndex": 0
},

for one of the inputs.
However, the unspent was actually the sixth output (vout: 5) when it was created:

When I put the txhex into https://blockstream.info/testnet/tx/push, it fails with sendrawtransaction RPC error: {"code":-25,"message":"bad-txns-inputs-missingorspent"}.
.
The transaction is invalid due to incorrectly specifying the output list position of the UTXO used in the inputs.

user61002: Regarding to the second transaction: It seems that it's a replacement for another transaction: https://blockchair.com/bitcoin/transaction/3791f433180a6807695da26e1c0b7f7328a15cbe727ad4ce7c7acbc18b77c5a0
but it does not allows replacement by bip 125.
As I'm stopping my development node when needed, it seems that this transaction was not in my node before receiving the second one (fa0dee70658fd00d6d205f673e79e3481cdba57100db576f2a7a308591a1c5e0). So it was accepted. The other node I have (pi4) rejects that transaction because its online all the time, and had tx 3791f433180a6807695da26e1c0b7f7328a15cbe727ad4ce7c7acbc18b77c5a0 before.
In brief: Some people/program was sending a replacement for a transaction which does not allow it and my node took it as the original.
Thanks a lot @Murch

61002: <p>I'm working on a project to visualize the mempool and (also) check if a transaction is being ignored by miners.</p>
<p>I have my own mining queue, to compare &quot;my first block&quot; with the block that has been mined. Comparing that block with mine I can take many statistics about weather a miner is choosing the best txs and/or is behaving correctly.</p>
<p>Project is currently in development and I have the backend more or less complete. Front-End is incomplete. So sorry if I can give you a link to it.</p>
<p>Today I've found that tx c3f92fe9ec20218a8c3d38b4852c9a88779d3128abdd43ac8c249207d8d3b530 has been ignored 86 times until now. And currently It's the first transaction that <strong>should</strong> be mined with 786 sat/VByte.</p>
<p>My bitcoin node shows that this transaction entered my mempool 20 hours ago. It's a short transaction with only 764 weight units, one input, one output, 0.24 bitcoins. Nothing special?</p>
<p>Also, my bitcoin node is using the tor network.</p>
<p>The transaction does not appear in known blockchain explorers so it seems that it has not been relayed properly. The transaction has bip125 enabled, so it could be that the person or entity broadcasting that transaction had increased many times the transaction fee.</p>
<p>So I'm wondering what is happening with this transaction. Anybody out there has any idea?</p>
<p>Maybe bitcoin nodes in tor network has poor conectivity with miners?</p>
<p>FYI: These are the blocks who has ignored the transaction up to date:</p>
<pre><code>height: 654568,
totalTxNumMined: 2762,
postitionInQueue: 5
},
{
height: 654569,
totalTxNumMined: 2746,
postitionInQueue: 4
},
{
height: 654570,
totalTxNumMined: 2177,
postitionInQueue: 1
},
{
height: 654571,
totalTxNumMined: 3044,
postitionInQueue: 2
},
{
height: 654572,
totalTxNumMined: 2824,
postitionInQueue: 0
},
{
height: 654574,
totalTxNumMined: 0,
postitionInQueue: 1
},
{
height: 654575,
totalTxNumMined: 2706,
postitionInQueue: 3
},
{
height: 654576,
totalTxNumMined: 2515,
postitionInQueue: 0
},
{
height: 654578,
totalTxNumMined: 3141,
postitionInQueue: 3
},
{
height: 654579,
totalTxNumMined: 3040,
postitionInQueue: 6
},
{
height: 654580,
totalTxNumMined: 2501,
postitionInQueue: 0
},
{
height: 654581,
totalTxNumMined: 2399,
postitionInQueue: 1
},
{
height: 654582,
totalTxNumMined: 2889,
postitionInQueue: 1
},
{
height: 654583,
totalTxNumMined: 2098,
postitionInQueue: 1
},
{
height: 654584,
totalTxNumMined: 2973,
postitionInQueue: 5
},
{
height: 654585,
totalTxNumMined: 2135,
postitionInQueue: 4
},
{
height: 654586,
totalTxNumMined: 2451,
postitionInQueue: 6
},
{
height: 654587,
totalTxNumMined: 2312,
postitionInQueue: 8
},
{
height: 654588,
totalTxNumMined: 2614,
postitionInQueue: 5
},
{
height: 654589,
totalTxNumMined: 2946,
postitionInQueue: 2
},
{
height: 654590,
totalTxNumMined: 3170,
postitionInQueue: 0
},
{
height: 654591,
totalTxNumMined: 2624,
postitionInQueue: 7
},
{
height: 654592,
totalTxNumMined: 2638,
postitionInQueue: 4
},
{
height: 654593,
totalTxNumMined: 2988,
postitionInQueue: 0
},
{
height: 654594,
totalTxNumMined: 2781,
postitionInQueue: 11
},
{
height: 654595,
totalTxNumMined: 2486,
postitionInQueue: 3
},
{
height: 654596,
totalTxNumMined: 2423,
postitionInQueue: 0
},
{
height: 654597,
totalTxNumMined: 2526,
postitionInQueue: 0
},
{
height: 654598,
totalTxNumMined: 2973,
postitionInQueue: 1
},
{
height: 654599,
totalTxNumMined: 2866,
postitionInQueue: 0
},
{
height: 654600,
totalTxNumMined: 2910,
postitionInQueue: 10
},
{
height: 654601,
totalTxNumMined: 1814,
postitionInQueue: 0
},
{
height: 654602,
totalTxNumMined: 2642,
postitionInQueue: 0
},
{
height: 654603,
totalTxNumMined: 2572,
postitionInQueue: 0
},
{
height: 654604,
totalTxNumMined: 2068,
postitionInQueue: 0
},
{
height: 654605,
totalTxNumMined: 2300,
postitionInQueue: 1
},
{
height: 654606,
totalTxNumMined: 1911,
postitionInQueue: 3
},
{
height: 654607,
totalTxNumMined: 2503,
postitionInQueue: 0
},
{
height: 654608,
totalTxNumMined: 2060,
postitionInQueue: 1
},
{
height: 654609,
totalTxNumMined: 1666,
postitionInQueue: 5
},
{
height: 654610,
totalTxNumMined: 2241,
postitionInQueue: 1
},
{
height: 654611,
totalTxNumMined: 1947,
postitionInQueue: 0
},
{
height: 654612,
totalTxNumMined: 1496,
postitionInQueue: 0
},
{
height: 654613,
totalTxNumMined: 2140,
postitionInQueue: 4
},
{
height: 654614,
totalTxNumMined: 2460,
postitionInQueue: 0
},
{
height: 654615,
totalTxNumMined: 1338,
postitionInQueue: 2
},
{
height: 654616,
totalTxNumMined: 2320,
postitionInQueue: 0
},
{
height: 654617,
totalTxNumMined: 2394,
postitionInQueue: 2
},
{
height: 654618,
totalTxNumMined: 2630,
postitionInQueue: 1
},
{
height: 654619,
totalTxNumMined: 2858,
postitionInQueue: 0
},
{
height: 654620,
totalTxNumMined: 2097,
postitionInQueue: 0
},
{
height: 654621,
totalTxNumMined: 2856,
postitionInQueue: 5
},
{
height: 654622,
totalTxNumMined: 2379,
postitionInQueue: 1
},
{
height: 654623,
totalTxNumMined: 2585,
postitionInQueue: 5
},
{
height: 654624,
totalTxNumMined: 2434,
postitionInQueue: 2
},
{
height: 654625,
totalTxNumMined: 2032,
postitionInQueue: 6
},
{
height: 654626,
totalTxNumMined: 2667,
postitionInQueue: 4
},
{
height: 654627,
totalTxNumMined: 2521,
postitionInQueue: 1
},
{
height: 654628,
totalTxNumMined: 2662,
postitionInQueue: 1
},
{
height: 654629,
totalTxNumMined: 2313,
postitionInQueue: 1
},
{
height: 654630,
totalTxNumMined: 1995,
postitionInQueue: 0
},
{
height: 654631,
totalTxNumMined: 2330,
postitionInQueue: 0
},
{
height: 654632,
totalTxNumMined: 2588,
postitionInQueue: 0
},
{
height: 654633,
totalTxNumMined: 2775,
postitionInQueue: 3
},
{
height: 654634,
totalTxNumMined: 2604,
postitionInQueue: 0
},
{
height: 654635,
totalTxNumMined: 2135,
postitionInQueue: 0
},
{
height: 654636,
totalTxNumMined: 2540,
postitionInQueue: 2
},
{
height: 654637,
totalTxNumMined: 2244,
postitionInQueue: 0
},
{
height: 654638,
totalTxNumMined: 1231,
postitionInQueue: 1
},
{
height: 654639,
totalTxNumMined: 2367,
postitionInQueue: 1
},
{
height: 654640,
totalTxNumMined: 2370,
postitionInQueue: 0
},
{
height: 654641,
totalTxNumMined: 2935,
postitionInQueue: 4
},
{
height: 654642,
totalTxNumMined: 2453,
postitionInQueue: 1
},
{
height: 654643,
totalTxNumMined: 2414,
postitionInQueue: 0
},
{
height: 654644,
totalTxNumMined: 3102,
postitionInQueue: 6
},
{
height: 654645,
totalTxNumMined: 3211,
postitionInQueue: 5
},
{
height: 654646,
totalTxNumMined: 2561,
postitionInQueue: 0
},
{
height: 654648,
totalTxNumMined: 1931,
postitionInQueue: 10
},
{
height: 654649,
totalTxNumMined: 2578,
postitionInQueue: 2
},
{
height: 654650,
totalTxNumMined: 2588,
postitionInQueue: 0
},
{
height: 654651,
totalTxNumMined: 3038,
postitionInQueue: 7
},
{
height: 654652,
totalTxNumMined: 1305,
postitionInQueue: 0
},
{
height: 654653,
totalTxNumMined: 2260,
postitionInQueue: 3
},
{
height: 654654,
totalTxNumMined: 2627,
postitionInQueue: 1
},
{
height: 654655,
totalTxNumMined: 1980,
postitionInQueue: 2
},
{
height: 654656,
totalTxNumMined: 2645,
postitionInQueue: 0
},
{
height: 654658,
totalTxNumMined: 2861,
postitionInQueue: 5
}```
</code></pre>
 63872: <p>I've checked my node, and it has no evidence of transaction <code>c3f92fe9ec20218a8c3d38b4852c9a88779d3128abdd43ac8c249207d8d3b530</code>.</p>
<p>Additionally, I checked a couple of block explorer websites, and none of them show any result for this transaction.</p>
<p>So it seems that this transaction was either not relayed through the wider network, or it was dropped by network nodes for some reason (network fees have been very high, some mempools might be hitting their memory limits). Without additional information, it is not possible to know.</p>
<p>Generally, we wouldn't expect all miners to ignore a high-fee-rate transaction, so there must be some other issue at play.</p>
 5406: <p>I'm looking into the second tx posted by the asker: fa0dee70658fd00d6d205f673e79e3481cdba57100db576f2a7a308591a1c5e0</p>
<p>It doesn't appear on any explorers. I noticed that all inputs were listed as being <code>vout: 0</code>, e.g. the input list states</p>
<pre><code>{
  &quot;addressIds&quot;: [
    &quot;123h581GZtFAucMPpa3hFBCedEifaka5g9&quot;
  ],
  &quot;amount&quot;: 76559401,
  &quot;txId&quot;: &quot;f9d4f7cc3cae21da8ed864654db405dcbc90a43e811ebafa999aa83c1ec323c9&quot;,
  &quot;coinbase&quot;: null,
  &quot;voutIndex&quot;: 0
},
</code></pre>
<p>for one of the inputs.</p>
<p>However, the unspent was actually the sixth output (<code>vout: 5</code>) when it was created:</p>
<p><a href="https://i.stack.imgur.com/wwIuk.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/wwIuk.png" alt="enter image description here" /></a></p>
<p>When I put the txhex into <a href="https://blockstream.info/testnet/tx/push" rel="nofollow noreferrer">https://blockstream.info/testnet/tx/push</a>, it fails with <code>sendrawtransaction RPC error: {&quot;code&quot;:-25,&quot;message&quot;:&quot;bad-txns-inputs-missingorspent&quot;}</code>.</p>
<p><a href="https://i.stack.imgur.com/z5VUU.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/z5VUU.png" alt="enter image description here" /></a>.</p>
<p>The transaction is invalid due to incorrectly specifying the output list position of the UTXO used in the inputs.</p>
 61002: <p>Regarding to the second transaction: It seems that it's a replacement for another transaction: <a href="https://blockchair.com/bitcoin/transaction/3791f433180a6807695da26e1c0b7f7328a15cbe727ad4ce7c7acbc18b77c5a0" rel="nofollow noreferrer">https://blockchair.com/bitcoin/transaction/3791f433180a6807695da26e1c0b7f7328a15cbe727ad4ce7c7acbc18b77c5a0</a>
but it does not allows replacement by bip 125.</p>
<p>As I'm stopping my development node when needed, it seems that this transaction was not in my node before receiving the second one (fa0dee70658fd00d6d205f673e79e3481cdba57100db576f2a7a308591a1c5e0). So it was accepted. The other node I have (pi4) rejects that transaction because its online all the time, and had tx 3791f433180a6807695da26e1c0b7f7328a15cbe727ad4ce7c7acbc18b77c5a0 before.</p>
<p>In brief: Some people/program was sending a replacement for a transaction which does not allow it and my node took it as the original.</p>
<p>Thanks a lot @Murch</p>
