{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:FDWXOVIZWILBENIZSAOWM37NWQ","short_pith_number":"pith:FDWXOVIZ","canonical_record":{"source":{"id":"1906.08814","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2019-06-20T19:20:32Z","cross_cats_sorted":["physics.ins-det"],"title_canon_sha256":"518a7c3d994295e987ce41fbc00efdb052de83e4f8999966539aee09d1352910","abstract_canon_sha256":"2f18a2d501de52eb07e23ea33f51425b3c2fb72a04bf663a7d9b5b8fc89339e2"},"schema_version":"1.0"},"canonical_sha256":"28ed775519b216123519901d666fedb4057f74b567f41b1605b05518761c5830","source":{"kind":"arxiv","id":"1906.08814","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1906.08814","created_at":"2026-05-17T23:42:47Z"},{"alias_kind":"arxiv_version","alias_value":"1906.08814v1","created_at":"2026-05-17T23:42:47Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1906.08814","created_at":"2026-05-17T23:42:47Z"},{"alias_kind":"pith_short_12","alias_value":"FDWXOVIZWILB","created_at":"2026-05-18T12:33:15Z"},{"alias_kind":"pith_short_16","alias_value":"FDWXOVIZWILBENIZ","created_at":"2026-05-18T12:33:15Z"},{"alias_kind":"pith_short_8","alias_value":"FDWXOVIZ","created_at":"2026-05-18T12:33:15Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:FDWXOVIZWILBENIZSAOWM37NWQ","target":"record","payload":{"canonical_record":{"source":{"id":"1906.08814","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2019-06-20T19:20:32Z","cross_cats_sorted":["physics.ins-det"],"title_canon_sha256":"518a7c3d994295e987ce41fbc00efdb052de83e4f8999966539aee09d1352910","abstract_canon_sha256":"2f18a2d501de52eb07e23ea33f51425b3c2fb72a04bf663a7d9b5b8fc89339e2"},"schema_version":"1.0"},"canonical_sha256":"28ed775519b216123519901d666fedb4057f74b567f41b1605b05518761c5830","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:42:47.838882Z","signature_b64":"xZpEjyn8iRn337vQ2uDUuiTPjwuYWtsQ4uAYKeILv4OZSYeRlaERvDPKMTdGAJRwiFcCHt+j+Ls9S9milAtMDg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"28ed775519b216123519901d666fedb4057f74b567f41b1605b05518761c5830","last_reissued_at":"2026-05-17T23:42:47.838235Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:42:47.838235Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1906.08814","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-17T23:42:47Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"2aBlht3TkowLKrRadFNZMXieYJ49a0sRLI6ESe0mVLVHHjArBeZuR2cKaNMqhMILjJaWHGxfIIvqQsUSPtUeBg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T06:48:42.289543Z"},"content_sha256":"a0a5961f6c37456598081c89d3fa346affc3079380b19bc1bdc2d467d8f280f9","schema_version":"1.0","event_id":"sha256:a0a5961f6c37456598081c89d3fa346affc3079380b19bc1bdc2d467d8f280f9"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:FDWXOVIZWILBENIZSAOWM37NWQ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Exclusion Limits on Hidden-Photon Dark Matter near 2 neV from a Fixed-Frequency Superconducting Lumped-Element Resonator","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.ins-det"],"primary_cat":"astro-ph.CO","authors_text":"A. Phipps, B. A. Young, C. S. Dawson, C. T. FitzGerald, D. Li, H. Froland, H. M. Cho, K. D. Irwin, K. Wells, P. W. Graham, S. Chaudhuri, S. E. Kuenstner, S. Rajendran","submitted_at":"2019-06-20T19:20:32Z","abstract_excerpt":"We present the design and performance of a simple fixed-frequency superconducting lumped-element resonator developed for axion and hidden photon dark matter detection. A rectangular NbTi inductor was coupled to a Nb-coated sapphire capacitor and immersed in liquid helium within a superconducting shield. The resonator was transformer-coupled to a DC SQUID for readout. We measured a quality factor of $\\sim$40,000 at the resonant frequency of 492.027 kHz and set a simple exclusion limit on $\\sim$2 neV hidden photons with kinetic mixing angle $\\varepsilon\\gtrsim1.5\\times10^{-9}$ based on 5.14 hour"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1906.08814","kind":"arxiv","version":1},"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":"2026-05-17T23:42:47Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"2frR+qyvZtH6DJXi8Y21nFzw37wEtt01fzuCO1b9QpClUmozc6qoLQ3gCnhidY7xUp6s5/YaxiSM6+s0huIKDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-26T06:48:42.290251Z"},"content_sha256":"5ca727726095e15ded9d5730f7bd55b3a79b15fdd746450c69eeb04aca4289da","schema_version":"1.0","event_id":"sha256:5ca727726095e15ded9d5730f7bd55b3a79b15fdd746450c69eeb04aca4289da"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/FDWXOVIZWILBENIZSAOWM37NWQ/bundle.json","state_url":"https://pith.science/pith/FDWXOVIZWILBENIZSAOWM37NWQ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/FDWXOVIZWILBENIZSAOWM37NWQ/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":"2026-05-26T06:48:42Z","links":{"resolver":"https://pith.science/pith/FDWXOVIZWILBENIZSAOWM37NWQ","bundle":"https://pith.science/pith/FDWXOVIZWILBENIZSAOWM37NWQ/bundle.json","state":"https://pith.science/pith/FDWXOVIZWILBENIZSAOWM37NWQ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/FDWXOVIZWILBENIZSAOWM37NWQ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:FDWXOVIZWILBENIZSAOWM37NWQ","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":"2f18a2d501de52eb07e23ea33f51425b3c2fb72a04bf663a7d9b5b8fc89339e2","cross_cats_sorted":["physics.ins-det"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2019-06-20T19:20:32Z","title_canon_sha256":"518a7c3d994295e987ce41fbc00efdb052de83e4f8999966539aee09d1352910"},"schema_version":"1.0","source":{"id":"1906.08814","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1906.08814","created_at":"2026-05-17T23:42:47Z"},{"alias_kind":"arxiv_version","alias_value":"1906.08814v1","created_at":"2026-05-17T23:42:47Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1906.08814","created_at":"2026-05-17T23:42:47Z"},{"alias_kind":"pith_short_12","alias_value":"FDWXOVIZWILB","created_at":"2026-05-18T12:33:15Z"},{"alias_kind":"pith_short_16","alias_value":"FDWXOVIZWILBENIZ","created_at":"2026-05-18T12:33:15Z"},{"alias_kind":"pith_short_8","alias_value":"FDWXOVIZ","created_at":"2026-05-18T12:33:15Z"}],"graph_snapshots":[{"event_id":"sha256:5ca727726095e15ded9d5730f7bd55b3a79b15fdd746450c69eeb04aca4289da","target":"graph","created_at":"2026-05-17T23:42:47Z","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 the design and performance of a simple fixed-frequency superconducting lumped-element resonator developed for axion and hidden photon dark matter detection. A rectangular NbTi inductor was coupled to a Nb-coated sapphire capacitor and immersed in liquid helium within a superconducting shield. The resonator was transformer-coupled to a DC SQUID for readout. We measured a quality factor of $\\sim$40,000 at the resonant frequency of 492.027 kHz and set a simple exclusion limit on $\\sim$2 neV hidden photons with kinetic mixing angle $\\varepsilon\\gtrsim1.5\\times10^{-9}$ based on 5.14 hour","authors_text":"A. Phipps, B. A. Young, C. S. Dawson, C. T. FitzGerald, D. Li, H. Froland, H. M. Cho, K. D. Irwin, K. Wells, P. W. Graham, S. Chaudhuri, S. E. Kuenstner, S. Rajendran","cross_cats":["physics.ins-det"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2019-06-20T19:20:32Z","title":"Exclusion Limits on Hidden-Photon Dark Matter near 2 neV from a Fixed-Frequency Superconducting Lumped-Element Resonator"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1906.08814","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:a0a5961f6c37456598081c89d3fa346affc3079380b19bc1bdc2d467d8f280f9","target":"record","created_at":"2026-05-17T23:42:47Z","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":"2f18a2d501de52eb07e23ea33f51425b3c2fb72a04bf663a7d9b5b8fc89339e2","cross_cats_sorted":["physics.ins-det"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2019-06-20T19:20:32Z","title_canon_sha256":"518a7c3d994295e987ce41fbc00efdb052de83e4f8999966539aee09d1352910"},"schema_version":"1.0","source":{"id":"1906.08814","kind":"arxiv","version":1}},"canonical_sha256":"28ed775519b216123519901d666fedb4057f74b567f41b1605b05518761c5830","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"28ed775519b216123519901d666fedb4057f74b567f41b1605b05518761c5830","first_computed_at":"2026-05-17T23:42:47.838235Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-17T23:42:47.838235Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"xZpEjyn8iRn337vQ2uDUuiTPjwuYWtsQ4uAYKeILv4OZSYeRlaERvDPKMTdGAJRwiFcCHt+j+Ls9S9milAtMDg==","signature_status":"signed_v1","signed_at":"2026-05-17T23:42:47.838882Z","signed_message":"canonical_sha256_bytes"},"source_id":"1906.08814","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:a0a5961f6c37456598081c89d3fa346affc3079380b19bc1bdc2d467d8f280f9","sha256:5ca727726095e15ded9d5730f7bd55b3a79b15fdd746450c69eeb04aca4289da"],"state_sha256":"c381135f59d366572f6e968fd3b31ccad4d97cf2a0e271ec4f3066cf140bf7e0"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"a2PsQ7dm15AvBZ6DjUP1ytkzn6lRLVIZSeAtZ5MkTqblLnWm5EsUIg0vESQMLfdHy9772M/HxvNNHSnsVJkbCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-26T06:48:42.294035Z","bundle_sha256":"51be5d7bba930b90be4782960958e74c88309808a028c9f9f507e4894b815f66"}}