{
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  "status": "bitcoin"
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 "epoch_start": "2026-10-28T01:00:00Z",
 "map_id": "urn:crovia:tacet:map:disclosure",
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 "operator": {
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 "sheet_version": "crovia.tacet.epoch.v1",
 "signature": {
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  "domain": "TACET-EPOCH-v1",
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}