{
  "custodian": "Helvetic Securgest",
  "custodian_jurisdiction": "Switzerland",
  "attestation_date": "2026-06-28",
  "attestation_reference": "HS-CUST-2026-06-28-ALKN",
  "asset_class": "Industrial metal — nickel wire",
  "material_grade": "NP1",
  "quantity_m": 7026905,
  "storage_location": "Bonded warehouse · Rotterdam · Neth.",
  "beneficiary": {"name": "Alkemya Metacore SCSp", "qid": "Q139941340", "isin": "LU3192257148"},
  "insurance": {"insurer": "Zurich Insurance Group", "policy_ref": "ZIG-COM-2026-11439"},
  "audit_trail": ["2026-06-15 material receipt", "2026-06-20 quality audit passed", "2026-06-28 attestation issued", "2026-06-29 token launch"],
  "_fetched_at": "2026-09-01T17:11:35Z",
  "_stream": "A",
  "_provenance": {"phase": "F-atomic", "chain_predecessor": "aef1940793d395528529f2eb7fc63ef5d2457f5bbc89ba586d367ecbe0b5c18b"}
}