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i want to cancel unconfirmed bitcoin transaction Development & Technical Discussion
Do you own the private key for any of the outputs in this TX? Perhaps a change a…
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n/a | uminatsu | November 15, 2017, 03:26:42 PM |
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BIP101: is this a typo? Development & Technical Discussion
Under https://github.com/gavinandresen/bips/blob/fd99a8ce04dbad96fb275e0300a7ee6…
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n/a | uminatsu | August 19, 2015, 12:33:16 AM |
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proposal to avoid hardfork by perma-freezing old nodes Development & Technical Discussion
Yes I agree this is quite obvious and probably not a new idea, but given the ong…
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n/a | uminatsu | May 16, 2015, 11:38:27 PM |
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proposal to avoid hardfork by perma-freezing old nodes Development & Technical Discussion
If the majority of nodes agree that for all blocks after block #N (e.g. 400000)…
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n/a | uminatsu | May 16, 2015, 10:40:30 PM |
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Sending bitcoins without miner fees Development & Technical Discussion
So I have seen a few people sending bitcoins without any miner fees, and their a…
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n/a | uminatsu | March 17, 2015, 12:17:54 PM |
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Continuous & piecewise linear block reward function with 21M limit unchanged Development & Technical Discussion
Original sum of block rewards = 20,999,999.97690000 BTCProposed sum of block rew…
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n/a | uminatsu | March 12, 2015, 05:23:55 PM |
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Continuous & piecewise linear block reward function with 21M limit unchanged Development & Technical Discussion
It is always nice to have code, but the odds of it happening in are essentially…
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n/a | uminatsu | March 12, 2015, 12:43:10 PM |
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Continuous & piecewise linear block reward function with 21M limit unchanged Development & Technical Discussion
Simulation shows that starting from block 6,930,000 both reward functions return…
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n/a | uminatsu | March 12, 2015, 12:13:18 PM |
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Continuous & piecewise linear block reward function with 21M limit unchanged Development & Technical Discussion
It is well known that the bitcoin block reward (as a function of the block numbe…
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n/a | uminatsu | March 12, 2015, 12:01:07 PM |
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Why do morons always try to redeem non-standard TX with no fee? Development & Technical Discussion
Non-standard TX can only be mined on the Eligius pool and Eligius pool does not…
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n/a | uminatsu | June 17, 2014, 03:38:46 PM |
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Does OP_INVALIDOPCODE always cause script to return false? Development & Technical Discussion
Normally OP_INVALIDOPCODE would cause script evaluation to return false, but wha…
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n/a | uminatsu | June 05, 2014, 12:33:07 PM |
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Miner accepting non-standard txs required! Development & Technical Discussion
If it has been more than a few hours since your last attempt, and the non-standa…
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n/a | uminatsu | May 28, 2014, 12:20:06 PM |
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1,500% transaction fee and 3,5 months to confirm? Development & Technical Discussion
You're doing it wrong if your service generates thousands of dust-sized outputs.…
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n/a | uminatsu | April 24, 2014, 02:55:08 PM |
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Do pending transactions live forever on Eligius mempool? Development & Technical Discussion
Isn't there a limit to multisig transaction sizes? See this:https://bitcointalk.…
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n/a | uminatsu | April 16, 2014, 11:38:48 PM |
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Do pending transactions live forever on Eligius mempool? Development & Technical Discussion
How did you try to redeem this output? There is a web-form http://eligius.st/~wi…
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n/a | uminatsu | April 16, 2014, 07:11:55 PM |
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Do pending transactions live forever on Eligius mempool? Development & Technical Discussion
Well it looks like Eligius hasn't found any blocks for the past 5 hours, so that…
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n/a | uminatsu | April 16, 2014, 06:31:05 PM |
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Simple solution for a safe privatekey? Development & Technical Discussion
The base58check encoding has a 32-bit checksum built in, so if you change one or…
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n/a | uminatsu | April 15, 2014, 11:20:50 AM |
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Do pending transactions live forever on Eligius mempool? Development & Technical Discussion
I've been watching this 16-of-16 multisig tx for a while (2ee6d8ea223e118075882e…
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n/a | uminatsu | April 15, 2014, 01:41:19 AM |
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Simple adjustment to prevent mining pools Development & Technical Discussion
This will also kill all ASIC-based mining because the bottleneck becomes the ECD…
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n/a | uminatsu | April 14, 2014, 12:02:16 AM |
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Technical info about transaction fees Development & Technical Discussion
I'm afraid that 0.0002 BTC is required for 1500 bytes. If you send without fee i…
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n/a | uminatsu | April 12, 2014, 10:15:16 AM |
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More compact encoding for bitcoin QR codes? Development & Technical Discussion
I mean common onesCorrect, in general we cannot make the QR code smaller if the…
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n/a | uminatsu | April 10, 2014, 05:21:04 PM |
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More compact encoding for bitcoin QR codes? Development & Technical Discussion
For reference, this is the smallest size of a Bitcoin address qr code:http://cha…
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n/a | uminatsu | April 09, 2014, 06:20:16 PM |
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Block malleability Development & Technical Discussion
You could change fields in the block header as long as they satisfy the conditio…
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n/a | uminatsu | April 09, 2014, 07:21:47 PM |
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Block malleability Development & Technical Discussion
You can't touch any single bit in a block header (or anywhere else in the block)…
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n/a | uminatsu | April 09, 2014, 06:13:52 PM |
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Is Eligius the only major pool that accepts non-standard transactions? Development & Technical Discussion
By "non-standard" I mean the transaction redeems at least one scriptPubKey that…
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n/a | uminatsu | April 09, 2014, 05:45:36 PM |
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More compact encoding for bitcoin QR codes? Development & Technical Discussion
More compact encoding for bitcoin QR codes?Most bitcoin-related QR codes encode…
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n/a | uminatsu | April 08, 2014, 01:02:14 AM |
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How is the base point G chosen for secp256k1? Development & Technical Discussion
The NSA picked it. There is no known way to gimmick the base point.What if the p…
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n/a | uminatsu | April 01, 2014, 12:25:27 PM |
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How is the base point G chosen for secp256k1? Development & Technical Discussion
I did some research on Google but couldn't find an answer.So secp256k1 has this…
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n/a | uminatsu | April 01, 2014, 12:12:00 PM |
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redundant opcodes in script? Development & Technical Discussion
The semantics are different. 0x53 pushes numer "3" while 0x03 indicates that the…
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n/a | uminatsu | March 31, 2014, 10:26:57 PM |
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Is this 16-of-16 multisig tx redeemable under current bitcoin implementation? Development & Technical Discussion
"scriptSig": "OP_FALSE 3045022100d2e8211aa4c5ae6c0bb7c0082e7e76cdb216d6279c11c0b…
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n/a | uminatsu | March 27, 2014, 11:08:48 AM |
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Is this 16-of-16 multisig tx redeemable under current bitcoin implementation? Development & Technical Discussion
Theoretically there may exist a "standard" tx that can redeem this 16-of-16 mult…
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n/a | uminatsu | March 26, 2014, 01:58:22 PM |
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"high priority" tx (with fee), taking forever to confirm Development & Technical Discussion
Anyone-Can-Spend is normally done with an empty scriptPubKey, not OP_TRUE. 0x51…
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n/a | uminatsu | March 26, 2014, 12:42:06 AM |
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"high priority" tx (with fee), taking forever to confirm Development & Technical Discussion
It says "Unable to decode input address" on https://blockchain.info/tx/2db109de6…
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n/a | uminatsu | March 26, 2014, 12:16:37 AM |
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"high priority" tx (with fee), taking forever to confirm Development & Technical Discussion
I crafted this raw transaction and relayed it through blockchain.info. It has th…
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n/a | uminatsu | March 25, 2014, 03:38:10 PM |
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"high priority" tx (with fee), taking forever to confirm Development & Technical Discussion
I crafted this raw transaction and relayed it through blockchain.info. It has th…
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n/a | uminatsu | March 25, 2014, 03:25:56 PM |
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Is this 16-of-16 multisig tx redeemable under current bitcoin implementation? Development & Technical Discussion
I spotted this around when it was created, I've seen a few spend attempts in the…
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n/a | uminatsu | March 24, 2014, 07:39:18 PM |
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Is this 16-of-16 multisig tx redeemable under current bitcoin implementation? Development & Technical Discussion
Here's a simpler solution to the 16-of-16 multisig. It is valid but again non-st…
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n/a | uminatsu | March 24, 2014, 07:13:20 PM |
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Is this 16-of-16 multisig tx redeemable under current bitcoin implementation? Development & Technical Discussion
uminatsu, push it to Eligius.mustyoshi, you shouldn't get banned for relaying no…
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n/a | uminatsu | March 24, 2014, 05:36:16 PM |
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Is this 16-of-16 multisig tx redeemable under current bitcoin implementation? Development & Technical Discussion
I've modified my bitcoind to accept non-standard but valid tx and I've also modi…
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n/a | uminatsu | March 24, 2014, 05:09:24 PM |
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Is this 16-of-16 multisig tx redeemable under current bitcoin implementation? Development & Technical Discussion
Ok I have fixed the endianness issue with VarInts. Now I have a tx that is accep…
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n/a | uminatsu | March 24, 2014, 12:07:02 PM |
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Is this 16-of-16 multisig tx redeemable under current bitcoin implementation? Development & Technical Discussion
You have "fd 04 a1", while it should be LSB: "fd a1 04"Thanks! Unfortunately thi…
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n/a | uminatsu | March 24, 2014, 11:23:21 AM |
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Is this 16-of-16 multisig tx redeemable under current bitcoin implementation? Development & Technical Discussion
So here's my solution to the 16-of-16 multisig... I know it is non-standard but…
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n/a | uminatsu | March 24, 2014, 12:57:29 AM |
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Is this 16-of-16 multisig tx redeemable under current bitcoin implementation? Development & Technical Discussion
here is 20-of-20 solved (not by me unfortunately)https://blockchain.info/tx/c4aa…
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n/a | uminatsu | March 24, 2014, 12:03:53 AM |
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Is this 16-of-16 multisig tx redeemable under current bitcoin implementation? Development & Technical Discussion
https://en.bitcoin.it/wiki/Free_transaction_relay_policyThank you very much!!! I…
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n/a | uminatsu | March 23, 2014, 11:52:39 PM |
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Is this 16-of-16 multisig tx redeemable under current bitcoin implementation? Development & Technical Discussion
except that non-standard does not mean unredeemablewell isn't it effectively unr…
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n/a | uminatsu | March 23, 2014, 11:33:24 PM |
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Is this 16-of-16 multisig tx redeemable under current bitcoin implementation? Development & Technical Discussion
https://github.com/bitcoin/bitcoin/blob/master/src/main.cpp#L519https://github.c…
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n/a | uminatsu | March 23, 2014, 09:55:32 AM |
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Is this 16-of-16 multisig tx redeemable under current bitcoin implementation? Development & Technical Discussion
I'm referring to this tx: https://blockchain.info/tx/2ee6d8ea223e118075882edba87…
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n/a | uminatsu | March 23, 2014, 02:08:18 AM |
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brainwallet.org in an offline packaged Chrome app Development & Technical Discussion
Disclaimer: I made this mostly for my own convenience. Use it at your own risk.A…
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n/a | uminatsu | March 20, 2014, 12:33:14 AM |
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Spending At The Same Time? Development & Technical Discussion
One of the two transactions will arrive before the other at each node. Each nod…
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n/a | uminatsu | February 14, 2014, 02:07:42 PM |
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Spending At The Same Time? Development & Technical Discussion
One of the two transactions will arrive before the other at each node. Each nod…
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n/a | uminatsu | February 14, 2014, 01:57:18 PM |
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Vanitygen: Vanity bitcoin address generator/miner [v0.22] Development & Technical Discussion
Compressed keys has been discussed before, but I wonder if anyone considered it…
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n/a | uminatsu | February 14, 2014, 01:40:25 PM |
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A proposal to permemenantly fixing the malleability problem Development & Technical Discussion
The final signature by itself is malleable, because for every ECDSA signature (r…
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n/a | uminatsu | February 13, 2014, 02:22:49 AM |
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Reusing bitcoin addresses? Beginners & Help
Regardless of future possible discovery of weaknesses in ECDSA, even by today's…
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n/a | uminatsu | February 11, 2014, 02:17:06 PM |
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Thought experiments on a potential weakness. Beginners & Help
Note: I'm seriously asking for a review of this scenario. Maybe someone already…
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n/a | uminatsu | January 15, 2014, 12:35:56 AM |
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Thought experiments on a potential weakness. Beginners & Help
I'm contemplating a scenario where a small pool (say 10% of the total hash rate)…
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n/a | uminatsu | January 15, 2014, 12:16:03 AM |
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