Trimtabist
The US Trade Ledger — every US container gateway, every partner country, every month. Census-recorded, AIS-verified.
TT-007 · slow clock · witness reported

Vessel registry

Gross tonnage and hull type per IMO number, so a count of ships becomes a measure of capacity and a bulk carrier can be told from a container ship. TEU is MODELLED as gross tonnage / 11 and is never quotable as a measurement.

Series published
0
of 0 registered
Grade
reported
counted by a named body
Clock
slow
years — safe to build on
Recording since
2026-07-29
Wikidata (SPARQL, keyed on IMO P458)

Series

Method

Source: Wikidata (SPARQL, keyed on IMO P458). The full method — what is measured, what is inferred, and what can mislead — is published as TT-007 method.

Machine readable:
POST /mcp — describe_series, query_series, check_agreement
resource trimtab://method/TT-007