{ "current_map_snapshot_id": "cht-lighthouse-map-2026-08-10-8e34b4c6e5ab", "description": "Selectable Chance partner extractions: historical map snapshots, deltas from previous extracts, and curated notes/gap packages.", "exchange_id": "chance-brothers-lighthouse-exchange", "extractions": [ { "comparison_href": "/chance-brothers/sync/extractions/cht-lighthouse-map-2026-06-13-ede43c0e6538/comparison.json", "delta_href": null, "extraction_id": "cht-lighthouse-map-2026-06-13-ede43c0e6538", "extraction_kind": "cht_map_snapshot", "href": "/chance-brothers/sync/extractions/cht-lighthouse-map-2026-06-13-ede43c0e6538/", "is_current": false, "label": "CHT map extract cht-lighthouse-map-2026-06-13-ede43c0e6538", "manifest_href": "/chance-brothers/sync/extractions/cht-lighthouse-map-2026-06-13-ede43c0e6538/manifest.json", "previous_snapshot_id": null, "raw_href": "/chance-brothers/sync/extractions/cht-lighthouse-map-2026-06-13-ede43c0e6538/chance_heritage_lighthouses.json", "received_or_generated_at": "2026-06-13T16:51:30+00:00", "record_count": 571 }, { "comparison_href": "/chance-brothers/comparison.json", "delta_href": "/chance-brothers/sync/extractions/cht-lighthouse-map-2026-08-10-8e34b4c6e5ab/delta-from-previous.json", "extraction_id": "cht-lighthouse-map-2026-08-10-8e34b4c6e5ab", "extraction_kind": "cht_map_snapshot", "href": "/chance-brothers/sync/extractions/cht-lighthouse-map-2026-08-10-8e34b4c6e5ab/", "is_current": true, "label": "CHT map extract cht-lighthouse-map-2026-08-10-8e34b4c6e5ab", "manifest_href": "/chance-brothers/sync/extractions/cht-lighthouse-map-2026-08-10-8e34b4c6e5ab/manifest.json", "previous_snapshot_id": "cht-lighthouse-map-2026-06-13-ede43c0e6538", "raw_href": "/chance-brothers/sync/extractions/cht-lighthouse-map-2026-08-10-8e34b4c6e5ab/chance_heritage_lighthouses.json", "received_or_generated_at": "2026-08-10T15:06:52+00:00", "record_count": 580 }, { "comparison_href": null, "delta_href": null, "extraction_id": "notes-gaps-active", "extraction_kind": "notes_and_gaps", "href": "/chance-brothers/sync/extractions/notes-gaps-active/", "is_current": true, "label": "Active notes and partner-site gaps", "manifest_href": null, "previous_snapshot_id": null, "raw_href": "/chance-brothers/sync/extractions/notes-gaps-active/notes.json", "received_or_generated_at": "2026-08-23T06:52:29+00:00", "record_count": 7, "summary": { "deliberately_omitted": 1, "live_on_partner_site": 6, "open": 0, "points": 7 } } ], "generated_at": "2026-08-23T06:52:29+00:00", "notes_package": { "description": "Selectable curated notes/gap extraction for Chance Heritage Trust. Pairs LUX historical reconciliation wording with partner-site follow-up status. Not a map dump and not an automatic import source.", "extraction_kind": "notes_and_gaps", "generated_at": "2026-08-23T06:52:29+00:00", "package_id": "notes-gaps-active", "points": [ { "disposition": "include_with_scope_label", "gap_status": "live_on_partner_site", "partner_action": "Keep Cape Byron on the map with the scope label 'auxiliary red-sector light and lantern'.", "partner_site_followup": { "exchange_id": "chance-historical-points-2026-07", "followup_id": "PSF-CHANCE-2026-004", "partner_id": "chance-heritage-trust", "partner_note": "Cape Byron added with careful scope: main optic Henry-Lepaute; Chance content is the 15-inch red-sector light (1889) plus Chance lantern fabric.", "point_id": "cape-byron-scope", "reconciliation_decision_id": "PHR-CHANCE-2026-004", "recorded_at": "2026-08-10T16:00:00+02:00", "site_status": "live_on_partner_site", "source": { "channel": "email", "from": "Paul", "organization": "Chance Heritage Trust", "recorded_at": "2026-08-10T16:00:00+02:00", "summary": "Partner confirmed the July LUX historical notes are now live on chanceht.org, with Cape North deliberately omitted pending primary Chance evidence." } }, "point_id": "cape-byron-scope", "question": "Does Cape Byron represent a Chance Brothers main lens installation?", "recommended_partner_wording": "Cape Byron's main optic was by Henry-Lepaute. Chance Brothers supplied a 15-inch red-sector light and a separate lantern component; the site should not be described as having a Chance main lens.", "reconciliation_decision_id": "PHR-CHANCE-2026-004" }, { "disposition": "hold_for_evidence", "gap_status": "deliberately_omitted", "partner_action": "Remove the lens as an accepted Chance item and retain the tower relocation as a separate, verified heritage record.", "partner_site_followup": { "exchange_id": "chance-historical-points-2026-07", "followup_id": "PSF-CHANCE-2026-005", "partner_id": "chance-heritage-trust", "partner_note": "Cape North deliberately left off the Chance map: stronger evidence favours a Barbier, Bénard & Turenne piece; add only with museum or order-book confirmation. LUX pages may want the same attribution caution.", "point_id": "cape-north-identity", "reconciliation_decision_id": "PHR-CHANCE-2026-005", "recorded_at": "2026-08-10T16:00:00+02:00", "site_status": "deliberately_omitted", "source": { "channel": "email", "from": "Paul", "organization": "Chance Heritage Trust", "recorded_at": "2026-08-10T16:00:00+02:00", "summary": "Partner confirmed the July LUX historical notes are now live on chanceht.org, with Cape North deliberately omitted pending primary Chance evidence." } }, "point_id": "cape-north-identity", "question": "What moved from Cape North to the Ottawa museum, and can the lens be attributed to Chance Brothers?", "recommended_partner_wording": "The Cape North lighthouse tower was moved to the Canada Science and Technology Museum in Ottawa in 1980. The lens attribution should be withheld pending primary museum catalog or order-book evidence; current research favours Barbier, Bénard & Turenne over Chance Brothers.", "reconciliation_decision_id": "PHR-CHANCE-2026-005" }, { "disposition": "include_with_scope_label", "gap_status": "live_on_partner_site", "partner_action": "Keep the 1877 entry with a historical-installation label and do not apply it to the current optic.", "partner_site_followup": { "exchange_id": "chance-historical-points-2026-07", "followup_id": "PSF-CHANCE-2026-007", "partner_id": "chance-heritage-trust", "partner_note": "Casquets records the 1877 first-order Chance optic as historical, with Trinity House’s current second-order noted separately as the present optic.", "point_id": "casquets-historical-current", "reconciliation_decision_id": "PHR-CHANCE-2026-007", "recorded_at": "2026-08-10T16:00:00+02:00", "site_status": "live_on_partner_site", "source": { "channel": "email", "from": "Paul", "organization": "Chance Heritage Trust", "recorded_at": "2026-08-10T16:00:00+02:00", "summary": "Partner confirmed the July LUX historical notes are now live on chanceht.org, with Cape North deliberately omitted pending primary Chance evidence." } }, "point_id": "casquets-historical-current", "question": "Is the Chance first-order optic the current Casquets apparatus?", "recommended_partner_wording": "A first-order Chance Brothers optic is reported for the 1877 historical installation. The current Casquets optic is a separate second-order 700 mm apparatus, so Chance should be shown as historical rather than current.", "reconciliation_decision_id": "PHR-CHANCE-2026-007" }, { "disposition": "confirmed_with_refinement", "gap_status": "live_on_partner_site", "partner_action": "Use dual attribution and identify Chance Brothers specifically as reconstructor.", "partner_site_followup": { "exchange_id": "chance-historical-points-2026-07", "followup_id": "PSF-CHANCE-2026-003", "partner_id": "chance-heritage-trust", "partner_note": "Mew Island / The Great Light reworded with dual credit: 1887 Barbier & Fenestre lenses off Tory, rebuilt by Chance into the Mew biform and first lit in 1928.", "point_id": "mew-great-light", "reconciliation_decision_id": "PHR-CHANCE-2026-003", "recorded_at": "2026-08-10T16:00:00+02:00", "site_status": "live_on_partner_site", "source": { "channel": "email", "from": "Paul", "organization": "Chance Heritage Trust", "recorded_at": "2026-08-10T16:00:00+02:00", "summary": "Partner confirmed the July LUX historical notes are now live on chanceht.org, with Cape North deliberately omitted pending primary Chance evidence." } }, "point_id": "mew-great-light", "question": "How should the Mew Island / Great Light optic be attributed?", "recommended_partner_wording": "The 1887 lenses were manufactured by Barbier & Fenestre; Chance Brothers reconstructed the remaining panels for the Mew Island biform installation commissioned in 1924 and first lit in 1928.", "reconciliation_decision_id": "PHR-CHANCE-2026-003" }, { "disposition": "confirmed_with_refinement", "gap_status": "live_on_partner_site", "partner_action": "Retain the record, specify first-order, and distinguish optic from lantern.", "partner_site_followup": { "exchange_id": "chance-historical-points-2026-07", "followup_id": "PSF-CHANCE-2026-006", "partner_id": "chance-heritage-trust", "partner_note": "Norah Head set to first-order.", "point_id": "norah-head-order", "reconciliation_decision_id": "PHR-CHANCE-2026-006", "recorded_at": "2026-08-10T16:00:00+02:00", "site_status": "live_on_partner_site", "source": { "channel": "email", "from": "Paul", "organization": "Chance Heritage Trust", "recorded_at": "2026-08-10T16:00:00+02:00", "summary": "Partner confirmed the July LUX historical notes are now live on chanceht.org, with Cape North deliberately omitted pending primary Chance evidence." } }, "point_id": "norah-head-order", "question": "Is the Norah Head Chance optic first-order?", "recommended_partner_wording": "Norah Head retains a first-order Chance Brothers dioptric revolving optic; its original 3700 mm Chance lantern is a separate component.", "reconciliation_decision_id": "PHR-CHANCE-2026-006" }, { "disposition": "confirmed_with_refinement", "gap_status": "live_on_partner_site", "partner_action": "Retain the entry, label it as the earlier first-order fixed optic, and avoid conflating it with the 1887 hyper-radial optic.", "partner_site_followup": { "exchange_id": "chance-historical-points-2026-07", "followup_id": "PSF-CHANCE-2026-001", "partner_id": "chance-heritage-trust", "partner_note": "Tory Island no longer reads as only “1st order, Fixed”; the earlier 1860/62 Chance first-order fixed optic is recorded as its own earlier stage.", "point_id": "tory-1862-optic", "reconciliation_decision_id": "PHR-CHANCE-2026-001", "recorded_at": "2026-08-10T16:00:00+02:00", "site_status": "live_on_partner_site", "source": { "channel": "email", "from": "Paul", "organization": "Chance Heritage Trust", "recorded_at": "2026-08-10T16:00:00+02:00", "summary": "Partner confirmed the July LUX historical notes are now live on chanceht.org, with Cape North deliberately omitted pending primary Chance evidence." } }, "point_id": "tory-1862-optic", "question": "Was the first-order fixed optic installed at Tory Island in 1860/1862 a Chance Brothers product?", "recommended_partner_wording": "Chance Brothers supplied the first-order fixed optic brought into service at Tory Island in 1862; the date should be presented as 1860/1862 where order and service dates are not distinguished.", "reconciliation_decision_id": "PHR-CHANCE-2026-001" }, { "disposition": "confirmed_with_refinement", "gap_status": "live_on_partner_site", "partner_action": "Credit Barbier & Fenestre as original manufacturer and Chance Brothers as reconstructor.", "partner_site_followup": { "exchange_id": "chance-historical-points-2026-07", "followup_id": "PSF-CHANCE-2026-002", "partner_id": "chance-heritage-trust", "partner_note": "Tory shows the retained biform 1330 mm hyper-radial: 1887 Barbier & Fenestre optic remade by Chance in 1922 and in service from 1923.", "point_id": "tory-1887-reconstruction", "reconciliation_decision_id": "PHR-CHANCE-2026-002", "recorded_at": "2026-08-10T16:00:00+02:00", "site_status": "live_on_partner_site", "source": { "channel": "email", "from": "Paul", "organization": "Chance Heritage Trust", "recorded_at": "2026-08-10T16:00:00+02:00", "summary": "Partner confirmed the July LUX historical notes are now live on chanceht.org, with Cape North deliberately omitted pending primary Chance evidence." } }, "point_id": "tory-1887-reconstruction", "question": "How should Chance Brothers be credited for the Tory Island 1887 optic and its 1922/1923 reconstruction?", "recommended_partner_wording": "Barbier & Fenestre manufactured the 1887 Tory Island lenses; Chance Brothers reconstructed the apparatus in 1922/1923 into a biform installation.", "reconciliation_decision_id": "PHR-CHANCE-2026-002" } ], "schema_version": 1, "summary": { "deliberately_omitted": 1, "live_on_partner_site": 6, "open": 0, "points": 7 }, "title": "Active notes and partner-site gaps" }, "partner_id": "chance-heritage-trust", "schema_version": 1 }