DEAD TOKENS
Directory/Substratum
SU

SUB

Substratum

Possibly silent

The last verified official post announced production in 2019; the original team then disappeared while a successor fork continued the codebase.

Checked-channel clock

2,457complete dayssince the last verified official communication · through 11 Jul 2026This is not a project-wide silence date.
AssessmentPossibly silent

Strong lead; incomplete coverage

Clock interval2,457 days

Native timestamp precision

Overall confidencemedium

Minimum of identity, timestamp and coverage

Policy2026-07-11.1

Reviewed as of 11 Jul 2026

Concise conclusion

The last verified official post announced production in 2019; the original team then disappeared while a successor fork continued the codebase.

“Ghosted” is editorial shorthand only. The formal assessment is possibly silent, scoped to the channels and dates shown below.

01

Strongest supporting evidence

4 cited facts
01

The last item in the official Medium feed, published 18 October 2019 at 15:30:51 UTC, announced that Substratum Network was moving to production rather than closing.

Official Substratum Medium ↗access blocked · 403
02

MASQ's repository states that it forked Substratum after Substratum ceased operations in October 2019 and that the original repositories were removed in 2021.

MASQ successor repository ↗live
03

The remaining checked repository's default branch records a last commit on 5 February 2019 at 22:05:18 UTC.

GitHub native commit ↗live
04

CoinPaprika currently marks SUB inactive and maps the historical project links.

CoinPaprika API ↗live

02

Strongest counterevidence

Leading hypothesis attacked
C1

MASQ continues development from the codebase, so the technology is not literally dead; its statement about Substratum also comes from a successor with an interest in framing continuity.

MASQ successor repository ↗live

03

Channel ledger

Separate clocks; separate failure modes
ChannelStatusLast verified activityEvidence
CommunicationOfficial Substratum Medium publicationsilent18 Oct 20192,457 complete daysOpen source ↗The publication feed has no later item; X and Telegram remain incomplete, so this is the last verified signal—not a guaranteed final message.
CodeSubstratumNetwork/sub-contract default branchsilent5 Feb 20192,712 complete daysOpen source ↗This is the latest commit found in the remaining visible organization repository, not proof that every historical repository was checked.
Websitesubstratum.netinaccessibleUnresolvedunknownOpen source ↗The domain was inaccessible during review; that does not reveal when substantive publishing stopped.
X@substratumnetnot exhaustively checkedUnresolvedunknownOpen source ↗Complete historical access was not available.

04

Alternative explanations

  • A1Development may have moved, been privatized, or continued only through MASQ as a successor fork.
  • A2Community-maintained nodes or token trading may continue without the original company.

05

Unresolved unknowns

  • U1The deleted original repositories need recovery from historical GitHub datasets.
  • U2No complete X, Telegram or archived website chronology has been established.

Highest-value next checks

What would most reduce uncertainty?

  1. Recover deleted organization metadata and final commits from GitHub Archive or GH Archive.
  2. Enumerate the final X and Telegram messages and verify whether the original production network still has independently operated nodes.