Coinbase output address and coinbase tag for block 683919 don't match

[0xB10C]

The coinbase output address and coinbase tag for block 683919 don't match.

Based on the coinbase output address 1EepjXgvWUoRyNvuLSAxjiqZ1QqKGDANLW the pool is identified as Houbi Pool.
https://github.com/0xB10C/known-mining-pools/blob/b601e8de52c09e9e0b50436b63f5e1251d4ab9f5/pools.json#L669-L672

Based on the coinbase tag /one_more_mcd/ the pool is identified as EMCDPool.

https://github.com/0xB10C/known-mining-pools/blob/b601e8de52c09e9e0b50436b63f5e1251d4ab9f5/pools.json#L539-L542

The address 1EepjXgvWUoRyNvuLSAxjiqZ1QqKGDANLW received coinbase transactions cointaining /HuoBi/. The address was added by @wanghao-huobi in btccom#77

CC @mutatrum @hsjoberg

[0xB10C]

Generally, for quality assurance, the coinbase tags and output addresses (if both have a match) could be tested for equality. Would be a good way to find potential errors.

[mutatrum]

Running this. It will take a while to go through the whole chain as I didn't optimize the code.

[2021-05-17T22:15:57.538Z] 1EepjXgvWUoRyNvuLSAxjiqZ1QqKGDANLW: Huobi Pool, "/one_more_mcd/": EMCDPool, block: 683919
[2021-05-17T22:16:03.206Z] 1EepjXgvWUoRyNvuLSAxjiqZ1QqKGDANLW: Huobi Pool, "/TMSPOOL/": TMSPool, block: 683709
[2021-05-17T22:16:04.857Z] 1EepjXgvWUoRyNvuLSAxjiqZ1QqKGDANLW: Huobi Pool, "/one_more_mcd/": EMCDPool, block: 683649
[2021-05-17T22:16:11.015Z] 1EepjXgvWUoRyNvuLSAxjiqZ1QqKGDANLW: Huobi Pool, "/one_more_mcd/": EMCDPool, block: 683468
[2021-05-17T22:16:12.741Z] 1EepjXgvWUoRyNvuLSAxjiqZ1QqKGDANLW: Huobi Pool, "/TMSPOOL/": TMSPool, block: 683424
[2021-05-17T22:16:13.533Z] 1EepjXgvWUoRyNvuLSAxjiqZ1QqKGDANLW: Huobi Pool, "/one_more_mcd/": EMCDPool, block: 683395
[2021-05-17T22:16:13.899Z] 1EepjXgvWUoRyNvuLSAxjiqZ1QqKGDANLW: Huobi Pool, "/one_more_mcd/": EMCDPool, block: 683384
[2021-05-17T22:16:20.004Z] 1EepjXgvWUoRyNvuLSAxjiqZ1QqKGDANLW: Huobi Pool, "/one_more_mcd/": EMCDPool, block: 683207

....

[2021-05-17T22:18:22.450Z] 12dRugNcdxK39288NjcDV4GX7rMsKCGn6B: AntPool, "/1THash/": 1THash, block: 679528
[2021-05-17T22:18:24.217Z] 12dRugNcdxK39288NjcDV4GX7rMsKCGn6B: AntPool, "/1THash/": 1THash, block: 679477

[0xB10C]

That's awesome, thanks! I guess there is no need to check the whole chain, i previously tested the identification starting at height 300000.

Seems like there are quite a few Huobi ≠ EMCD mismatches... And TSMPool too??

[mutatrum]

Not sure where it's at now, process is still running but didn't produce anything for a while. It seems it's below block 300k (it runs in reverse) so that matches what you state.

The list of address vs. tag mismatches:

address	pool	tag	pool
12dRugNcdxK39288NjcDV4GX7rMsKCGn6B	AntPool	/1THash/	1THash
155fzsEBHy9Ri2bMQ8uuuR3tv1YzcDywd4	BitClub	ckpool	CKPool
1AZ6BkCo4zgTuuLpRStJH8iNsehXTMp456	BitcoinIndia	/Bitcoin-India/	Bitcoin India
165GCEAx81wce33FWEnPCRhdjcXCrBJdKn	BitcoinRussia	/Bitcoin-Ukraine.com.ua/	Bitcoin-Ukraine
1jKSjMLnDNup6NPgCjveeP9tUn4YpT94Y	BTCMP	ckpool	CKPool
1Ca1KNQQo8akbrwTjjXuk8aikvC2pwodU2	BTCPool	BTCPool	BTCPool (unidentified)
1JLRXD8rjRgQtTS9MvfQALfHgGWau9L9ky	BWPool	ckpool	CKPool
1Afcpc2FpPnREU6i52K3cicmHdvYRAH9Wo	CANOE	/CANOE/	CanoePool
1BX5YoLwvqzvVwSrdD4dC32vbouHQn2tuF	Cointerra	Eligius	Eligius
16GsNC3q6KgVXkUX7j7aPxSUdHrt1sN2yN	Eobot	/solo.ckpool.org/	Solo CK
17judvK4AC2M6KhaBbAEGw8CTKc9Pg8wup	HotPool	ckpool	CKPool
18Zcyxqna6h7Z7bRjhKvGpr8HSfieQWXqj	Huobi Pool	/one_more_mcd/	EMCDPool
1EepjXgvWUoRyNvuLSAxjiqZ1QqKGDANLW	Huobi Pool	/one_more_mcd/	EMCDPool
18Zcyxqna6h7Z7bRjhKvGpr8HSfieQWXqj	Huobi Pool	/TMSPOOL/	TMSPool
1EepjXgvWUoRyNvuLSAxjiqZ1QqKGDANLW	Huobi Pool	/TMSPOOL/	TMSPool
1EowSPumj9D9AMTpE64Jr7vT3PJDNopVcz	MiningKings	ckpool	CKPool
1KGbsDDAgJN2HDNBjmMHp9828qATo5B9c9	MiningKings	ckpool	CKPool
12znnESiJ3bgCLftwwrg9wzQKN8fJtoBDa	shawnp0wers	ckpool	CKPool
18HEMWFXM9UGPVZHUMdBPD3CMFWYn2NPRX	shawnp0wers	ckpool	CKPool
12Taz8FFXQ3E2AGn3ZW1SZM5bLnYGX4xR6	Tangpool	HAOBTC	Bixin
18ikmzPqk721ZNvWhDos1UL4H29w352Kj5	Telco 214	ckpool	CKPool
125K2xfiBdae42gSKiCGwi85Frpy1vHmGj	UKRPool	/hash.okkong.com/	OKKONG
1FLH1SoLv4U68yUERhDiWzrJn5TggMqkaZ	Waterhole	/BTC.COM/	BTC.com

I've attached the log, so you can lookup specific blocks:

pools.log

I'm not familiar on how the addresses are gathered, so I don't know how to proceed from here.

[0xB10C]

Thanks! I'll have a look soon. I know that e.g UKRPool and OKKONG merged.