{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:D75WRRY4YQYT3LFU2KZUT77Q52","merge_version":"pith-open-graph-merge-v1","event_count":2,"valid_event_count":2,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"d242c1e98307d51d95b511dcb72008e8ac55abed091545b390ba6287350d4dcc","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2014-03-25T01:17:57Z","title_canon_sha256":"5d336598f9d77397b487fe0d4cf467f6817f2ab7833080ef0e582773e32e724f"},"schema_version":"1.0","source":{"id":"1403.6205","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1403.6205","created_at":"2026-05-18T01:33:57Z"},{"alias_kind":"arxiv_version","alias_value":"1403.6205v1","created_at":"2026-05-18T01:33:57Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1403.6205","created_at":"2026-05-18T01:33:57Z"},{"alias_kind":"pith_short_12","alias_value":"D75WRRY4YQYT","created_at":"2026-05-18T12:28:25Z"},{"alias_kind":"pith_short_16","alias_value":"D75WRRY4YQYT3LFU","created_at":"2026-05-18T12:28:25Z"},{"alias_kind":"pith_short_8","alias_value":"D75WRRY4","created_at":"2026-05-18T12:28:25Z"}],"graph_snapshots":[{"event_id":"sha256:99b9dd7076f9dec52718acaba82f17363b79290bf82e2fb1898ccf114c7639e2","target":"graph","created_at":"2026-05-18T01:33:57Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"graph_snapshot":{"author_claims":{"count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","strong_count":0},"builder_version":"pith-number-builder-2026-05-17-v1","claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"paper":{"abstract_excerpt":"We present Silver-epoxy filters combining excellent microwave attenuation with efficient wire thermalization, suitable for low temperature quantum transport experiments. Upon minimizing parasitic capacitances, the attenuation reaches >100 dB above ~150 MHz and - when capacitors are added - already above ~30 MHz. We measure the device electron temperature with a GaAs quantum dot and demonstrate excellent filter performance. Upon improving the sample holder and adding a second filtering stage, we obtain electron temperatures as low as 7.5 +/- 0.2 mK in metallic Coulomb blockade thermometers.","authors_text":"A. C. Gossard, C. P. Scheller, D. Giss, D. M. Zumb\\\"uhl, J. D. Zimmerman, K. Bedner, M. Meschke, S. Heizmann","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2014-03-25T01:17:57Z","title":"Silver-Epoxy Microwave Filters and Thermalizers for Millikelvin Experiments"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1403.6205","kind":"arxiv","version":1},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:b7b9ec994dd78150a71c93335ba91fc9b460aea1d4a72672c85f60432fc9df1f","target":"record","created_at":"2026-05-18T01:33:57Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"d242c1e98307d51d95b511dcb72008e8ac55abed091545b390ba6287350d4dcc","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mes-hall","submitted_at":"2014-03-25T01:17:57Z","title_canon_sha256":"5d336598f9d77397b487fe0d4cf467f6817f2ab7833080ef0e582773e32e724f"},"schema_version":"1.0","source":{"id":"1403.6205","kind":"arxiv","version":1}},"canonical_sha256":"1ffb68c71cc4313dacb4d2b349fff0ee83143b61956adb4b6de5ac446abc7779","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"1ffb68c71cc4313dacb4d2b349fff0ee83143b61956adb4b6de5ac446abc7779","first_computed_at":"2026-05-18T01:33:57.097635Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:33:57.097635Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"N+JX2DVlhZ4hOoklv7jeQ7CAADzWlMoqJHuU4sXDlBji9S9n8BswWYDVyh8gvERlYu83nNsPpGkXgVDla6lpBQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:33:57.098020Z","signed_message":"canonical_sha256_bytes"},"source_id":"1403.6205","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b7b9ec994dd78150a71c93335ba91fc9b460aea1d4a72672c85f60432fc9df1f","sha256:99b9dd7076f9dec52718acaba82f17363b79290bf82e2fb1898ccf114c7639e2"],"state_sha256":"f633505ec6bd8cb74b3eeabf2347311ad48b588698d40451bab57ec81ac99bfd"}