{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:2SDOJCEMQ4UEZPYZVTKCSFMMCC","short_pith_number":"pith:2SDOJCEM","canonical_record":{"source":{"id":"1801.00835","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2018-01-02T21:00:14Z","cross_cats_sorted":["hep-ex","hep-ph","physics.ins-det"],"title_canon_sha256":"9c4cedb6853c7489c2b98fc7ebfc7e679cd4e2c8a0a956f8ec83bb639d616b89","abstract_canon_sha256":"11454aa806bddd6f191cd0e6d2aad87b72262db94d7f7a4a264b605897e9e57c"},"schema_version":"1.0"},"canonical_sha256":"d486e4888c87284cbf19acd429158c10b20de0564bd36271b054a07f8f3826c3","source":{"kind":"arxiv","id":"1801.00835","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1801.00835","created_at":"2026-05-18T00:26:48Z"},{"alias_kind":"arxiv_version","alias_value":"1801.00835v1","created_at":"2026-05-18T00:26:48Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1801.00835","created_at":"2026-05-18T00:26:48Z"},{"alias_kind":"pith_short_12","alias_value":"2SDOJCEMQ4UE","created_at":"2026-05-18T12:32:02Z"},{"alias_kind":"pith_short_16","alias_value":"2SDOJCEMQ4UEZPYZ","created_at":"2026-05-18T12:32:02Z"},{"alias_kind":"pith_short_8","alias_value":"2SDOJCEM","created_at":"2026-05-18T12:32:02Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:2SDOJCEMQ4UEZPYZVTKCSFMMCC","target":"record","payload":{"canonical_record":{"source":{"id":"1801.00835","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2018-01-02T21:00:14Z","cross_cats_sorted":["hep-ex","hep-ph","physics.ins-det"],"title_canon_sha256":"9c4cedb6853c7489c2b98fc7ebfc7e679cd4e2c8a0a956f8ec83bb639d616b89","abstract_canon_sha256":"11454aa806bddd6f191cd0e6d2aad87b72262db94d7f7a4a264b605897e9e57c"},"schema_version":"1.0"},"canonical_sha256":"d486e4888c87284cbf19acd429158c10b20de0564bd36271b054a07f8f3826c3","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:26:48.648511Z","signature_b64":"JT9xMKUB/sOugT4iQ2Pv1EmaJDLJJxWdaQUa5mxV6SjKELt5uW7Kxu2W98VA/J1icsSleXLbRGP5YdOtvB02AQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d486e4888c87284cbf19acd429158c10b20de0564bd36271b054a07f8f3826c3","last_reissued_at":"2026-05-18T00:26:48.647833Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:26:48.647833Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1801.00835","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":"2026-05-18T00:26:48Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"cFMk3Fk0Dx65nA6D/Rg/gXjD2OrtszlQkJ8x/EwFJDr6cYRo1IywgvvKJ/c2ebgGzA2nb5g7zXxEg/NxunPHDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-02T11:45:59.751150Z"},"content_sha256":"11977dce438183b95a92facf9cdf1ea4244cd23d4873c7fe0f18896079bafbc9","schema_version":"1.0","event_id":"sha256:11977dce438183b95a92facf9cdf1ea4244cd23d4873c7fe0f18896079bafbc9"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:2SDOJCEMQ4UEZPYZVTKCSFMMCC","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"First results from the HAYSTAC axion search","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ex","hep-ph","physics.ins-det"],"primary_cat":"astro-ph.CO","authors_text":"Benjamin M. Brubaker","submitted_at":"2018-01-02T21:00:14Z","abstract_excerpt":"The axion is a well-motivated cold dark matter (CDM) candidate first postulated to explain the absence of $CP$ violation in the strong interactions. CDM axions may be detected via their resonant conversion into photons in a \"haloscope\" detector: a tunable high-$Q$ microwave cavity maintained at cryogenic temperature, immersed a strong magnetic field, and coupled to a low-noise receiver.\n  This dissertation reports on the design, commissioning, and first operation of the Haloscope at Yale Sensitive to Axion CDM (HAYSTAC), a new detector designed to search for CDM axions with masses above $20$ $"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1801.00835","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":"2026-05-18T00:26:48Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"0spNBUThE3nzsGWNa3HS7ExtZ2L0CemRX6S/ix4H0ahYqyjNqzD1w9sdFn2hf+UsEEhIAamL6RTIlwFkqHs3Dw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-02T11:45:59.751979Z"},"content_sha256":"cba3246572ea6839790330a5393edce9a562f3e875e0054ceadd77bf6c66f764","schema_version":"1.0","event_id":"sha256:cba3246572ea6839790330a5393edce9a562f3e875e0054ceadd77bf6c66f764"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/2SDOJCEMQ4UEZPYZVTKCSFMMCC/bundle.json","state_url":"https://pith.science/pith/2SDOJCEMQ4UEZPYZVTKCSFMMCC/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/2SDOJCEMQ4UEZPYZVTKCSFMMCC/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":"2026-08-02T11:45:59Z","links":{"resolver":"https://pith.science/pith/2SDOJCEMQ4UEZPYZVTKCSFMMCC","bundle":"https://pith.science/pith/2SDOJCEMQ4UEZPYZVTKCSFMMCC/bundle.json","state":"https://pith.science/pith/2SDOJCEMQ4UEZPYZVTKCSFMMCC/state.json","well_known_bundle":"https://pith.science/.well-known/pith/2SDOJCEMQ4UEZPYZVTKCSFMMCC/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:2SDOJCEMQ4UEZPYZVTKCSFMMCC","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":"11454aa806bddd6f191cd0e6d2aad87b72262db94d7f7a4a264b605897e9e57c","cross_cats_sorted":["hep-ex","hep-ph","physics.ins-det"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2018-01-02T21:00:14Z","title_canon_sha256":"9c4cedb6853c7489c2b98fc7ebfc7e679cd4e2c8a0a956f8ec83bb639d616b89"},"schema_version":"1.0","source":{"id":"1801.00835","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1801.00835","created_at":"2026-05-18T00:26:48Z"},{"alias_kind":"arxiv_version","alias_value":"1801.00835v1","created_at":"2026-05-18T00:26:48Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1801.00835","created_at":"2026-05-18T00:26:48Z"},{"alias_kind":"pith_short_12","alias_value":"2SDOJCEMQ4UE","created_at":"2026-05-18T12:32:02Z"},{"alias_kind":"pith_short_16","alias_value":"2SDOJCEMQ4UEZPYZ","created_at":"2026-05-18T12:32:02Z"},{"alias_kind":"pith_short_8","alias_value":"2SDOJCEM","created_at":"2026-05-18T12:32:02Z"}],"graph_snapshots":[{"event_id":"sha256:cba3246572ea6839790330a5393edce9a562f3e875e0054ceadd77bf6c66f764","target":"graph","created_at":"2026-05-18T00:26:48Z","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":"The axion is a well-motivated cold dark matter (CDM) candidate first postulated to explain the absence of $CP$ violation in the strong interactions. CDM axions may be detected via their resonant conversion into photons in a \"haloscope\" detector: a tunable high-$Q$ microwave cavity maintained at cryogenic temperature, immersed a strong magnetic field, and coupled to a low-noise receiver.\n  This dissertation reports on the design, commissioning, and first operation of the Haloscope at Yale Sensitive to Axion CDM (HAYSTAC), a new detector designed to search for CDM axions with masses above $20$ $","authors_text":"Benjamin M. Brubaker","cross_cats":["hep-ex","hep-ph","physics.ins-det"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2018-01-02T21:00:14Z","title":"First results from the HAYSTAC axion search"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1801.00835","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":"sha256:11977dce438183b95a92facf9cdf1ea4244cd23d4873c7fe0f18896079bafbc9","target":"record","created_at":"2026-05-18T00:26:48Z","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":"11454aa806bddd6f191cd0e6d2aad87b72262db94d7f7a4a264b605897e9e57c","cross_cats_sorted":["hep-ex","hep-ph","physics.ins-det"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2018-01-02T21:00:14Z","title_canon_sha256":"9c4cedb6853c7489c2b98fc7ebfc7e679cd4e2c8a0a956f8ec83bb639d616b89"},"schema_version":"1.0","source":{"id":"1801.00835","kind":"arxiv","version":1}},"canonical_sha256":"d486e4888c87284cbf19acd429158c10b20de0564bd36271b054a07f8f3826c3","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d486e4888c87284cbf19acd429158c10b20de0564bd36271b054a07f8f3826c3","first_computed_at":"2026-05-18T00:26:48.647833Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:26:48.647833Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"JT9xMKUB/sOugT4iQ2Pv1EmaJDLJJxWdaQUa5mxV6SjKELt5uW7Kxu2W98VA/J1icsSleXLbRGP5YdOtvB02AQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:26:48.648511Z","signed_message":"canonical_sha256_bytes"},"source_id":"1801.00835","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:11977dce438183b95a92facf9cdf1ea4244cd23d4873c7fe0f18896079bafbc9","sha256:cba3246572ea6839790330a5393edce9a562f3e875e0054ceadd77bf6c66f764"],"state_sha256":"b472711a8169214895b28865d25145002ebca8ab3d4dcc51604b51d1a9629e10"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"Gge/V6O89meDA3yjCFyM12JthPEC1QAdk2bhcea5snAjrrcqyaOjHlDfvMkEHIFYN/I2HDocbQXgc5BDLX9RBw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-02T11:45:59.757080Z","bundle_sha256":"d8aa95feaf0a4c9743839d16c222990c3ba4c7fa428caceba35a68fce512db5c"}}