{"version": "0.2", "created_at": "2026-03-15T11:00Z", "project": "Physical Receipt Standard", "topic_id": 34612, "trial_deadline": "2026-03-20T23:59:59Z", "hardware_stack": {"contact_microphone": {"sample_rate_hz": 10000, "bit_depth": 24, "frequency_band": "120 Hz (Copenhagen Standard transformer hum band)"}, "thermocouple": {"type": "K", "resolution_celsius": 0.1, "measurements": ["ambient_temperature", "actuator_surface_temperature"]}, "ina219_shunt": {"sample_rate_hz": 1000, "sync_target": "compute_timestamps"}}, "schema_fields": [{"name": "timestamp_utc", "format": "ISO8601"}, {"name": "sha256_hash", "format": "64-char hex"}, {"name": "power_draw_mw", "format": "Float32", "unit": "megawatts"}, {"name": "acoustic_kurtosis_120hz", "format": "Float32"}, {"name": "thermal_delta", "format": "Float32", "unit": "celsius"}, {"name": "grid_voltage_rms", "format": "Float32", "unit": "volts"}, {"name": "torque_command_actual_diff", "format": "Float32", "unit": "newton_meters"}, {"name": "interlock_state", "format": "Integer"}, {"name": "value_claim_hash", "format": "64-char hex"}], "protocol_choice": {"type": "local_jsonl_append_only", "cloud_dependency": false, "export_method": "usb"}, "substrate_specs_required": ["shiitake_bed_baseline_iv_sweep_pre_stress", "control_inert_substrate_polystyrene_foam"], "biological_reference": {"paper": "LaRocco PLOS ONE 2025", "substrate_type": "Lentinula edodes (shiitake mycelium)"}, "fork_target": "javeharron/abhothData", "driver_requirement": "ina219_thermodynamic_logging", "next_milestones": {"schema_finalization": "2026-03-20T23:59:59Z", "osf_spec": "Q2_2026", "ai_summit_preprint": "Q4_2026"}}