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Median absolute proportional change when a containerised-weight figure is restated. Answers how big a typical restatement is, not merely how often one happens. A source that revises often but trivially is different from one that revises rarely but by a third.
NO OBSERVATIONS YET. The archive holds 20,618 entries and every one is a `backfill` — our own air_weight_kg column arriving for the first time — with zero genuine restatements. A revision can only be observed by re-fetching a month we already hold and finding it changed, and until 2026-07-30 nothing did that: the weekly timer ran a superseded collector that crashed against the migrated schema. It now re-syncs the last six months every Friday. Lift when the archive holds genuine `revision` or `withdrawn` entries across at least a few distinct months — not on the first one, which could be a one-off.
· from 1970-01-01 · open-ended · the data is not served while this stands.
Own-recorded live from terrestrial AIS (aisstream.io receiver network); the recording, timestamps and event derivation are ours. Source: undefined.
query_series, describe_series