Wiki / Forks / Oil Bitcoin (OBTC)

Oil Bitcoin (OBTC)OBTC

From the Bitcoin Takeover Wiki · ✓ 5 sources · 0 podcast anchors · built 2026-11-13

A December 2017 proof-of-stake fork at block 498,888 with replay protection and O/A address prefixes; not to be confused with the 2019 Bitcoin Oil (OIL) press-release project.

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The wiki's angle: two unrelated projects used almost the same name. Oil Bitcoin (OBTC) is the 2017 chain; Bitcoin Oil (OIL) is a 2019 announcement with no fork block.[1][5]

Contents

  1. Design
  2. Record
  3. Name clash
  4. References

Design

The README says “OBTC is a fork of Bitcoin, an open autonomous community that distributes lost bitcoin back to block rewards by using POS consensus mechanism”[1]. It lists “a fork of Bitcoin after block height 498888”, per-block difficulty adjustment, replay protection with SIGHASH_FORK_ID, and wallet addresses starting with O and A[1]. Block 498,888 was mined on 12 December 2017[2].

Record

forkdrop's data file gives fork block 498888, a date of 2017-12-12 and a 1:1 ratio, with the maximum supply unknown (“???”)[3]. The 2019 fork list found the oilbtc.io site gone and the node “doesn't seem to be working anymore”, last synced at block 524,001 on 7 March 2018[4].

Name clash

This is a different project from Bitcoin Oil (OIL), a Houston company's 2019 press release about a planned proof-of-stake fork[5]. forkdrop keeps them as two entries with different tickers, sites and dates[3].

References

  1. primaryOilBitCoin README, GitHub oilbtc2017/oilbtc [archived]
  2. primarymempool.space, Bitcoin block 498,888 (header time 2017-12-12 10:29:53 UTC) [archived]
  3. secondaryforkdrop.io data file json/index.json, the per-coin table behind its fork pages (Wayback Machine copy, 13 Jan 2021)
  4. secondary“My list of 43(+3) reviewed Bitcoin forks”, Bitcointalk topic 2777849 (last update 26 Feb 2019) [archived]
  5. primaryBitcoin Oil, “Bitcoin Oil Announces Its Intentions To Go Green And Solve Bitcoin's Energy Consumption Problems”, Business Wire press release (4 Feb 2019; Wayback Machine copy)

Related

Bitcoin Oil (OIL)
A February 2019 Business Wire announcement of a planned proof-of-stake Bitcoin fork; no fork block was ever se
Source note: the 2019 fork list (johnsmithx)
The Bitcointalk list of 43 reviewed Bitcoin forks that this wiki cites as bth-review: who wrote it, how it tes
BitcoinStake (BTCS)
A Chinese-language proof-of-stake fork at block 499,999 at 1 BTC = 100 BTCS, with 21 million of 2.121 billion
Categories: Forks · Fork lineage
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