{"schema":"plot.claim/v1","address":{"kind":"claim","id":"RC4W-05","version":1,"latest_version":1,"is_latest":true,"release":null,"url":"https://www.plot.eco/c/RC4W-05","formats":{"html":"https://www.plot.eco/c/RC4W-05","json":"https://www.plot.eco/c/RC4W-05.json","md":"https://www.plot.eco/c/RC4W-05.md","embed":"https://www.plot.eco/c/RC4W-05/embed"}},"record_type":"observation","statement":"The writer reports that sand from a ship's ballast, full of shells from Durban, had been dumped on the beach near Williamstown.","about":{"id":"ZKM8-1W","name":"Williamstown","kind":"place","url":"https://www.plot.eco/p/williamstown","place":"https://www.plot.eco/p/williamstown"},"object":null,"measure":"Historical passage","value":{"text":"Mr. F. E. Grant mentioned that a large quantity of sand, containing a quantity of shells of various kinds, brought as ballast in a ship from Durban, had been thrown out on the beach near Williamstown, and conchologists would therefore need to be very careful not to confuse these with the Victorian species.","number":null,"lower":null,"upper":null,"comparator":"=","unit":null},"caveats":{"kind":"source_reported","kind_label":"Reported by source","origin":"community_reported","origin_label":"Reported by community","period":{"text":"1901","start":"1901-01-01","end":"1901-12-31"},"verification":{"level":"reviewed","label":"Reviewed","step":3,"of":4,"meaning":"PLOT checked the claim against its source. This is not independent verification.","basis":"person","basis_note":"Checked by a person."},"open_questions":{"count":0,"note":"Open questions and challenges are counted publicly; their text is published when they are resolved."}},"temporal_status":"historic","method":"accounts-core@0.1.0: screen_passage@1, extract_passage@1 (claude-opus-5-5 (Claude Code session)); locator victoriannatural18fiel, leaf 85, printed page 71","uncertainty":null,"limitations":"A writer's account: context and a reason to look again, never a measurement. The writer's words for the place are kept; silence elsewhere is not absence.","explanation":null,"source":{"title":"The Victorian naturalist, v.18, 1901-1902","publisher":"Field Naturalists' Club of Victoria","url":"https://archive.org/details/victoriannatural18fiel","locator":"victoriannatural18fiel, leaf 85, printed page 71","page":71,"plot_url":"https://www.plot.eco/s/YP9Q-AT?snippet=6b682afe-58b2-483c-9e45-e069505a85bb"},"framework_targets":[],"editions":["october-26th-release"],"history":[{"version":1,"change_reason":null,"current":true}],"resolved_questions":[],"sourcing":{"found":"by_protocol","summary":"Found under sourcing protocol accounts-core@0.1.0, for the question \"Changes people made\", in historical_archives. Screened in on an AI proposal (Claude Opus 5.5 (AI), for review). Extracted with claude-opus-5-5 (Claude Code session), prompt extract_passage@1; a person reviewed it before publication.","protocol":{"id":"accounts-core","version":"0.1.0"},"note":"accounts-core run williamstown-2026-10-23: Internet Archive texts (Victorian Naturalist v.1-37, Letters from Victorian Pioneers) and ALA specimen facets. Trove and BHL blocked: they need API keys.","question":{"key":"Q34.hist_land_use_change","title":"Changes people made"},"channel":{"id":"historical_archives","label":"historical_archives"},"query":{"text":"Williamstown | Williams Town | Williams-town | Point Gellibrand | Gellibrand's Point | Gellibrand Point | Jawbone | Greenwich Bay in archive.org/victoriannatural18fiel","engine":"archive.org OCR text, local full-text match"},"screening":{"decision":"include","reason_code":"meets_criteria","rationale":"Ship's ballast sand with South African shells dumped on the beach near Williamstown.","decided_by":"ai_proposed","label":"Claude Opus 5.5 (AI), for review","prompt_ref":"screen_passage@1","model_ref":"claude-opus-5-5 (Claude Code session)"},"extraction":{"prompt_ref":"extract_passage@1","model_ref":"claude-opus-5-5 (Claude Code session)"}},"jobs":null,"cite_as":"PLOT record c/RC4W-05 v1, Field Naturalists' Club of Victoria (1901), reported by source"}