{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2021:XAC3XMGFJUCUEN3DXWFIM4QD45","short_pith_number":"pith:XAC3XMGF","canonical_record":{"source":{"id":"2103.03783","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2021-03-05T16:24:31Z","cross_cats_sorted":["hep-ph"],"title_canon_sha256":"7b48e8ab5035a15297c136dcb6b2ffdfd6999a61d50f90b32e1728638cf5f689","abstract_canon_sha256":"66c28d4a647240b9b167880e42cbd9e2e17d1f9f8613efdccc7cc05e3d4e4adc"},"schema_version":"1.0"},"canonical_sha256":"b805bbb0c54d05423763bd8a867203e75ec619ebbb826f2acbc0e513ab6f268a","source":{"kind":"arxiv","id":"2103.03783","version":3},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2103.03783","created_at":"2026-07-05T03:45:27Z"},{"alias_kind":"arxiv_version","alias_value":"2103.03783v3","created_at":"2026-07-05T03:45:27Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2103.03783","created_at":"2026-07-05T03:45:27Z"},{"alias_kind":"pith_short_12","alias_value":"XAC3XMGFJUCU","created_at":"2026-07-05T03:45:27Z"},{"alias_kind":"pith_short_16","alias_value":"XAC3XMGFJUCUEN3D","created_at":"2026-07-05T03:45:27Z"},{"alias_kind":"pith_short_8","alias_value":"XAC3XMGF","created_at":"2026-07-05T03:45:27Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2021:XAC3XMGFJUCUEN3DXWFIM4QD45","target":"record","payload":{"canonical_record":{"source":{"id":"2103.03783","kind":"arxiv","version":3},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2021-03-05T16:24:31Z","cross_cats_sorted":["hep-ph"],"title_canon_sha256":"7b48e8ab5035a15297c136dcb6b2ffdfd6999a61d50f90b32e1728638cf5f689","abstract_canon_sha256":"66c28d4a647240b9b167880e42cbd9e2e17d1f9f8613efdccc7cc05e3d4e4adc"},"schema_version":"1.0"},"canonical_sha256":"b805bbb0c54d05423763bd8a867203e75ec619ebbb826f2acbc0e513ab6f268a","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T03:45:27.884187Z","signature_b64":"jXAWXjWTD5OkTcq6lzxUlCO3M75S//agVVYEb6MPD+Y7iYVoJ+nt31IkVWy8t237bxrx1WfiqyqGRhdhjZN0Bw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"b805bbb0c54d05423763bd8a867203e75ec619ebbb826f2acbc0e513ab6f268a","last_reissued_at":"2026-07-05T03:45:27.883711Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T03:45:27.883711Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2103.03783","source_version":3,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T03:45:27Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"mFKSGgGu8T1E6oyRN+B1P7j8zpSBf+b2rFQSSgK/V8R6xfmQq6GCgHWkv5J/AzWejdqs7TMoEZ4Vhb4ejXTjDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T14:06:22.100944Z"},"content_sha256":"573df747ca2d25064545b6db831bab9b1e1bebf97b0e88930b71e23216fff025","schema_version":"1.0","event_id":"sha256:573df747ca2d25064545b6db831bab9b1e1bebf97b0e88930b71e23216fff025"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2021:XAC3XMGFJUCUEN3DXWFIM4QD45","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Direct limits for scalar field dark matter from a gravitational-wave detector","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ph"],"primary_cat":"gr-qc","authors_text":"Aparna Bisht, Benno Willke, Borja Sorazu, Christoph Affeldt, Emil Schreiber, Fabio Bergamin, Harald L\\\"uck, Hartmut Grote, Henning Vahlbruch, Holger Wittel, James Lough, Karsten Danzmann, Kenneth A. Strain, Marc Brinkmann, Michael Weinert, Moritz Mehmet, Nikhil Mukund, Philip Relton, Sander M. Vermeulen, S\\'everin Nadji, Suresh Doravari, Vivien Raymond, Volker Kringel","submitted_at":"2021-03-05T16:24:31Z","abstract_excerpt":"The nature of dark matter remains unknown to date; several candidate particles are being considered in a dynamically changing research landscape. Scalar field dark matter is a prominent option that is being explored with precision instruments, such as atomic clocks and optical cavities. Here we report on the first direct search for scalar field dark matter utilising a gravitational-wave detector, which operates beyond the quantum shot-noise limit. We set new upper limits for the coupling constants of scalar field dark matter as a function of its mass, by excluding the presence of signals that "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2103.03783","kind":"arxiv","version":3},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2103.03783/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2026-07-05T03:45:27Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"uj6Dg2DMntQ0Cuezf9bGtNOU3iDkJnbGO+RusIpu/XcBgS96f9plH8Kq6OvJ5ZmGaeFZ/voQ5UF1BHiiEJpoAg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-07T14:06:22.101326Z"},"content_sha256":"a8208a717383d4a145c57546c4e2f7643b439178f44c30973e3daa5141635c3b","schema_version":"1.0","event_id":"sha256:a8208a717383d4a145c57546c4e2f7643b439178f44c30973e3daa5141635c3b"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/XAC3XMGFJUCUEN3DXWFIM4QD45/bundle.json","state_url":"https://pith.science/pith/XAC3XMGFJUCUEN3DXWFIM4QD45/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/XAC3XMGFJUCUEN3DXWFIM4QD45/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":"2026-07-07T14:06:22Z","links":{"resolver":"https://pith.science/pith/XAC3XMGFJUCUEN3DXWFIM4QD45","bundle":"https://pith.science/pith/XAC3XMGFJUCUEN3DXWFIM4QD45/bundle.json","state":"https://pith.science/pith/XAC3XMGFJUCUEN3DXWFIM4QD45/state.json","well_known_bundle":"https://pith.science/.well-known/pith/XAC3XMGFJUCUEN3DXWFIM4QD45/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:XAC3XMGFJUCUEN3DXWFIM4QD45","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":"66c28d4a647240b9b167880e42cbd9e2e17d1f9f8613efdccc7cc05e3d4e4adc","cross_cats_sorted":["hep-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2021-03-05T16:24:31Z","title_canon_sha256":"7b48e8ab5035a15297c136dcb6b2ffdfd6999a61d50f90b32e1728638cf5f689"},"schema_version":"1.0","source":{"id":"2103.03783","kind":"arxiv","version":3}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2103.03783","created_at":"2026-07-05T03:45:27Z"},{"alias_kind":"arxiv_version","alias_value":"2103.03783v3","created_at":"2026-07-05T03:45:27Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2103.03783","created_at":"2026-07-05T03:45:27Z"},{"alias_kind":"pith_short_12","alias_value":"XAC3XMGFJUCU","created_at":"2026-07-05T03:45:27Z"},{"alias_kind":"pith_short_16","alias_value":"XAC3XMGFJUCUEN3D","created_at":"2026-07-05T03:45:27Z"},{"alias_kind":"pith_short_8","alias_value":"XAC3XMGF","created_at":"2026-07-05T03:45:27Z"}],"graph_snapshots":[{"event_id":"sha256:a8208a717383d4a145c57546c4e2f7643b439178f44c30973e3daa5141635c3b","target":"graph","created_at":"2026-07-05T03:45:27Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2103.03783/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"The nature of dark matter remains unknown to date; several candidate particles are being considered in a dynamically changing research landscape. Scalar field dark matter is a prominent option that is being explored with precision instruments, such as atomic clocks and optical cavities. Here we report on the first direct search for scalar field dark matter utilising a gravitational-wave detector, which operates beyond the quantum shot-noise limit. We set new upper limits for the coupling constants of scalar field dark matter as a function of its mass, by excluding the presence of signals that ","authors_text":"Aparna Bisht, Benno Willke, Borja Sorazu, Christoph Affeldt, Emil Schreiber, Fabio Bergamin, Harald L\\\"uck, Hartmut Grote, Henning Vahlbruch, Holger Wittel, James Lough, Karsten Danzmann, Kenneth A. Strain, Marc Brinkmann, Michael Weinert, Moritz Mehmet, Nikhil Mukund, Philip Relton, Sander M. Vermeulen, S\\'everin Nadji, Suresh Doravari, Vivien Raymond, Volker Kringel","cross_cats":["hep-ph"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2021-03-05T16:24:31Z","title":"Direct limits for scalar field dark matter from a gravitational-wave detector"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2103.03783","kind":"arxiv","version":3},"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":"sha256:573df747ca2d25064545b6db831bab9b1e1bebf97b0e88930b71e23216fff025","target":"record","created_at":"2026-07-05T03:45:27Z","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":"66c28d4a647240b9b167880e42cbd9e2e17d1f9f8613efdccc7cc05e3d4e4adc","cross_cats_sorted":["hep-ph"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"gr-qc","submitted_at":"2021-03-05T16:24:31Z","title_canon_sha256":"7b48e8ab5035a15297c136dcb6b2ffdfd6999a61d50f90b32e1728638cf5f689"},"schema_version":"1.0","source":{"id":"2103.03783","kind":"arxiv","version":3}},"canonical_sha256":"b805bbb0c54d05423763bd8a867203e75ec619ebbb826f2acbc0e513ab6f268a","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b805bbb0c54d05423763bd8a867203e75ec619ebbb826f2acbc0e513ab6f268a","first_computed_at":"2026-07-05T03:45:27.883711Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T03:45:27.883711Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"jXAWXjWTD5OkTcq6lzxUlCO3M75S//agVVYEb6MPD+Y7iYVoJ+nt31IkVWy8t237bxrx1WfiqyqGRhdhjZN0Bw==","signature_status":"signed_v1","signed_at":"2026-07-05T03:45:27.884187Z","signed_message":"canonical_sha256_bytes"},"source_id":"2103.03783","source_kind":"arxiv","source_version":3}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:573df747ca2d25064545b6db831bab9b1e1bebf97b0e88930b71e23216fff025","sha256:a8208a717383d4a145c57546c4e2f7643b439178f44c30973e3daa5141635c3b"],"state_sha256":"b02185d9d785cbd3b96a106ef42d4614b6bada32adedeebad36dc3a2987c087d"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"eug93ilGDt42l4sqUCea9bqh+H3hOA9qwn/uDAkbJO9aGGHHox827nM2QV8xbv+VIJ0wCARXziO1IuN55z8ZBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-07T14:06:22.103260Z","bundle_sha256":"885036bb3bf02a93600ff9cc05799aa0acfbf054287f5f90feeb04cf985565dc"}}