58COIN

58COIN (website: https://www.58coin.com) — what it is

58COIN is best documented as a cryptocurrency trading brand (exchange / derivatives platform) that also had an identifiable footprint in Bitcoin mining-pool activity under the “58COIN” pool label.

Identity / business context (most commonly described)

• Multiple third-party profiles and write-ups describe 58COIN as a crypto exchange founded around 2017, focused heavily on contract/derivatives trading. (revain.org)
• Some sources state the platform was owned/operated by “Wanshi Technology Limited” (wording varies by source quality and is not consistently corroborated by primary filings in the materials surfaced). (yuanxue365.com)
• Historical 58COIN communications (archived on Reddit under the 58COIN Exchange account) claimed www.58ex.com was the “only official website” at that time (early 2020), which is relevant when interpreting what domain(s) were official across different periods. (reddit.com)

“Miner-validator” classification: what that likely means here

Bitcoin does not have “validators” in the Proof-of-Stake sense; it has:

• Miners / mining pools that produce blocks (Proof-of-Work), and
• Full nodes that validate blocks/transactions per consensus rules.

For 58COIN, the strongest “miner” evidence is that “58COIN” appears as a Bitcoin mining-pool label in academic/measurement datasets:

• One measurement study lists “58COIN” as a mining pool with observed blocks from 2017-11-05 through 2019-01-01 (time span shown in the paper’s table). (cointhinktank.com)
• A separate academic text groups “1Hash & 58coin” as a Chinese pool formed from two pools (1THash and 58coin), indicating an association/merger-style labeling seen in mining-pool reporting. (doras.dcu.ie)

Bottom line

58COIN is most defensibly described as a 2017-era crypto exchange/derivatives brand that also shows up in public/academic mining-pool attribution as a Bitcoin mining pool label (2017–2019 observation window)—so “miner” fits; “validator” is best interpreted loosely (i.e., as a block-producing mining entity in Bitcoin, not a PoS validator). (cointhinktank.com)