{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:3YLEJVW6T5NSHEWS4CFPZHYI5W","short_pith_number":"pith:3YLEJVW6","canonical_record":{"source":{"id":"1710.04326","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2017-10-11T22:47:21Z","cross_cats_sorted":[],"title_canon_sha256":"2011c43d300c319dfc74cd608f5ec840b0d14e251d9a42a4bde2f3bb904ab74d","abstract_canon_sha256":"8784a21c07f50abaafea904a58a5c1d6b6e825dca1722d0bda5513f578faf20c"},"schema_version":"1.0"},"canonical_sha256":"de1644d6de9f5b2392d2e08afc9f08eda420e4044f532d734f5b070987ad453f","source":{"kind":"arxiv","id":"1710.04326","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1710.04326","created_at":"2026-05-18T00:27:52Z"},{"alias_kind":"arxiv_version","alias_value":"1710.04326v2","created_at":"2026-05-18T00:27:52Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1710.04326","created_at":"2026-05-18T00:27:52Z"},{"alias_kind":"pith_short_12","alias_value":"3YLEJVW6T5NS","created_at":"2026-05-18T12:30:58Z"},{"alias_kind":"pith_short_16","alias_value":"3YLEJVW6T5NSHEWS","created_at":"2026-05-18T12:30:58Z"},{"alias_kind":"pith_short_8","alias_value":"3YLEJVW6","created_at":"2026-05-18T12:30:58Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:3YLEJVW6T5NSHEWS4CFPZHYI5W","target":"record","payload":{"canonical_record":{"source":{"id":"1710.04326","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2017-10-11T22:47:21Z","cross_cats_sorted":[],"title_canon_sha256":"2011c43d300c319dfc74cd608f5ec840b0d14e251d9a42a4bde2f3bb904ab74d","abstract_canon_sha256":"8784a21c07f50abaafea904a58a5c1d6b6e825dca1722d0bda5513f578faf20c"},"schema_version":"1.0"},"canonical_sha256":"de1644d6de9f5b2392d2e08afc9f08eda420e4044f532d734f5b070987ad453f","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:27:52.104909Z","signature_b64":"3bt6GkQZibqKANuiJeZS040l2m/kAxWOXwtNJtVsfhqSFAJs/edbqADbvafph6HxZSApY/Qfuxt5zfSQD+L+DQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"de1644d6de9f5b2392d2e08afc9f08eda420e4044f532d734f5b070987ad453f","last_reissued_at":"2026-05-18T00:27:52.104274Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:27:52.104274Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1710.04326","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T00:27:52Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"t6uJbIqQ4FVtX7LyilJ5yBopSgYnLVDVD5LJJ3SS8+wkmKxxl/f/5y9NsxqDXxLpmhs6D8Oz/r0SUUltX9QBDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-05T04:40:37.469832Z"},"content_sha256":"3e29aac56c4bebc82f4b7aed33fa3576a77a4f0f7deb1acc4248e38434895148","schema_version":"1.0","event_id":"sha256:3e29aac56c4bebc82f4b7aed33fa3576a77a4f0f7deb1acc4248e38434895148"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:3YLEJVW6T5NSHEWS4CFPZHYI5W","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Microwave SQUID Multiplexer demonstration for Cosmic Microwave Background Imagers","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.IM","authors_text":"B. Dober, C.D. Reintsema, D.A. Bennett, D.T. Becker, G.C. Hilton, J.A.B. Mates, J.D. Gard, J. Hubmayr, J.N. Ullom, J.P. Hays-Wehle, L.R. Vale, S.A. Bryan, S.M. Duff","submitted_at":"2017-10-11T22:47:21Z","abstract_excerpt":"Key performance characteristics are demonstrated for the microwave SQUID multiplexer ($\\mu$MUX) coupled to transition edge sensor (TES) bolometers that have been optimized for cosmic microwave background (CMB) observations. In a 64-channel demonstration, we show that the $\\mu$MUX produces a white, input referred current noise level of 29~pA$/\\sqrt{\\mathrm{Hz}}$ at -77~dB microwave probe tone power, which is well below expected fundamental detector and photon noise sources for a ground-based CMB-optimized bolometer. Operated with negligible photon loading, we measure 98~pA$/\\sqrt{\\mathrm{Hz}}$ "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1710.04326","kind":"arxiv","version":2},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T00:27:52Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"3iJ/s8KBd6A3TM+S2jZ2A95AfFCKXtKjW8WCz3ttAYilKVBmlcq22B73cCdd2ix+ZhacAoPdpoauo+HDSSsfAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-05T04:40:37.470188Z"},"content_sha256":"2c4f95c09eaaf1449ed569fb9fe71839a1220912aa10aa51be9cbe1f422ff29a","schema_version":"1.0","event_id":"sha256:2c4f95c09eaaf1449ed569fb9fe71839a1220912aa10aa51be9cbe1f422ff29a"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/3YLEJVW6T5NSHEWS4CFPZHYI5W/bundle.json","state_url":"https://pith.science/pith/3YLEJVW6T5NSHEWS4CFPZHYI5W/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/3YLEJVW6T5NSHEWS4CFPZHYI5W/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-06-05T04:40:37Z","links":{"resolver":"https://pith.science/pith/3YLEJVW6T5NSHEWS4CFPZHYI5W","bundle":"https://pith.science/pith/3YLEJVW6T5NSHEWS4CFPZHYI5W/bundle.json","state":"https://pith.science/pith/3YLEJVW6T5NSHEWS4CFPZHYI5W/state.json","well_known_bundle":"https://pith.science/.well-known/pith/3YLEJVW6T5NSHEWS4CFPZHYI5W/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:3YLEJVW6T5NSHEWS4CFPZHYI5W","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":"8784a21c07f50abaafea904a58a5c1d6b6e825dca1722d0bda5513f578faf20c","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2017-10-11T22:47:21Z","title_canon_sha256":"2011c43d300c319dfc74cd608f5ec840b0d14e251d9a42a4bde2f3bb904ab74d"},"schema_version":"1.0","source":{"id":"1710.04326","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1710.04326","created_at":"2026-05-18T00:27:52Z"},{"alias_kind":"arxiv_version","alias_value":"1710.04326v2","created_at":"2026-05-18T00:27:52Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1710.04326","created_at":"2026-05-18T00:27:52Z"},{"alias_kind":"pith_short_12","alias_value":"3YLEJVW6T5NS","created_at":"2026-05-18T12:30:58Z"},{"alias_kind":"pith_short_16","alias_value":"3YLEJVW6T5NSHEWS","created_at":"2026-05-18T12:30:58Z"},{"alias_kind":"pith_short_8","alias_value":"3YLEJVW6","created_at":"2026-05-18T12:30:58Z"}],"graph_snapshots":[{"event_id":"sha256:2c4f95c09eaaf1449ed569fb9fe71839a1220912aa10aa51be9cbe1f422ff29a","target":"graph","created_at":"2026-05-18T00:27:52Z","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":"Key performance characteristics are demonstrated for the microwave SQUID multiplexer ($\\mu$MUX) coupled to transition edge sensor (TES) bolometers that have been optimized for cosmic microwave background (CMB) observations. In a 64-channel demonstration, we show that the $\\mu$MUX produces a white, input referred current noise level of 29~pA$/\\sqrt{\\mathrm{Hz}}$ at -77~dB microwave probe tone power, which is well below expected fundamental detector and photon noise sources for a ground-based CMB-optimized bolometer. Operated with negligible photon loading, we measure 98~pA$/\\sqrt{\\mathrm{Hz}}$ ","authors_text":"B. Dober, C.D. Reintsema, D.A. Bennett, D.T. Becker, G.C. Hilton, J.A.B. Mates, J.D. Gard, J. Hubmayr, J.N. Ullom, J.P. Hays-Wehle, L.R. Vale, S.A. Bryan, S.M. Duff","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2017-10-11T22:47:21Z","title":"Microwave SQUID Multiplexer demonstration for Cosmic Microwave Background Imagers"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1710.04326","kind":"arxiv","version":2},"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":"sha256:3e29aac56c4bebc82f4b7aed33fa3576a77a4f0f7deb1acc4248e38434895148","target":"record","created_at":"2026-05-18T00:27:52Z","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":"8784a21c07f50abaafea904a58a5c1d6b6e825dca1722d0bda5513f578faf20c","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.IM","submitted_at":"2017-10-11T22:47:21Z","title_canon_sha256":"2011c43d300c319dfc74cd608f5ec840b0d14e251d9a42a4bde2f3bb904ab74d"},"schema_version":"1.0","source":{"id":"1710.04326","kind":"arxiv","version":2}},"canonical_sha256":"de1644d6de9f5b2392d2e08afc9f08eda420e4044f532d734f5b070987ad453f","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"de1644d6de9f5b2392d2e08afc9f08eda420e4044f532d734f5b070987ad453f","first_computed_at":"2026-05-18T00:27:52.104274Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:27:52.104274Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"3bt6GkQZibqKANuiJeZS040l2m/kAxWOXwtNJtVsfhqSFAJs/edbqADbvafph6HxZSApY/Qfuxt5zfSQD+L+DQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:27:52.104909Z","signed_message":"canonical_sha256_bytes"},"source_id":"1710.04326","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:3e29aac56c4bebc82f4b7aed33fa3576a77a4f0f7deb1acc4248e38434895148","sha256:2c4f95c09eaaf1449ed569fb9fe71839a1220912aa10aa51be9cbe1f422ff29a"],"state_sha256":"b0fd4844989cfacea6bc4952c4f40f99ee9c46a4c695dc2655b7372d089e72c1"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"TmfYatsZjo8OS77u4DEAUlgoEJC/3Q2do+AnM15qnaUJPPBp/eKG7e1bf/eFpk7064gyF96jemzvaYKrctbzCA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-05T04:40:37.472364Z","bundle_sha256":"6254def930712b38da690c81d06ef7efca5dad04cf4d317603aca0a30088733b"}}