{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2019:6LGBNKMQ5NXPL4JKRCMTSIS7YF","short_pith_number":"pith:6LGBNKMQ","canonical_record":{"source":{"id":"1912.02200","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2019-12-04T19:00:04Z","cross_cats_sorted":["gr-qc"],"title_canon_sha256":"616d4b2c53522ce7961b1e84b4055ba89856e073bce7df3b949e0226a7fd4c43","abstract_canon_sha256":"7252dc0feb25ea3e6e535bcb22eecf711f6b97ebc440594d4d819ee0f8d2d5c1"},"schema_version":"1.0"},"canonical_sha256":"f2cc16a990eb6ef5f12a889939225fc1754c5ae8090e17c84e2414405b36d55c","source":{"kind":"arxiv","id":"1912.02200","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1912.02200","created_at":"2026-07-05T01:34:33Z"},{"alias_kind":"arxiv_version","alias_value":"1912.02200v2","created_at":"2026-07-05T01:34:33Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1912.02200","created_at":"2026-07-05T01:34:33Z"},{"alias_kind":"pith_short_12","alias_value":"6LGBNKMQ5NXP","created_at":"2026-07-05T01:34:33Z"},{"alias_kind":"pith_short_16","alias_value":"6LGBNKMQ5NXPL4JK","created_at":"2026-07-05T01:34:33Z"},{"alias_kind":"pith_short_8","alias_value":"6LGBNKMQ","created_at":"2026-07-05T01:34:33Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2019:6LGBNKMQ5NXPL4JKRCMTSIS7YF","target":"record","payload":{"canonical_record":{"source":{"id":"1912.02200","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2019-12-04T19:00:04Z","cross_cats_sorted":["gr-qc"],"title_canon_sha256":"616d4b2c53522ce7961b1e84b4055ba89856e073bce7df3b949e0226a7fd4c43","abstract_canon_sha256":"7252dc0feb25ea3e6e535bcb22eecf711f6b97ebc440594d4d819ee0f8d2d5c1"},"schema_version":"1.0"},"canonical_sha256":"f2cc16a990eb6ef5f12a889939225fc1754c5ae8090e17c84e2414405b36d55c","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T01:34:33.263676Z","signature_b64":"LyVzZ5u0wCLF9HepU5GOcZtRpwl4ch5w9EyTcRaRNGJz56A5NPH+3109XYQ4D4EcX0+cpIoQub48fKN3aHthCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"f2cc16a990eb6ef5f12a889939225fc1754c5ae8090e17c84e2414405b36d55c","last_reissued_at":"2026-07-05T01:34:33.263324Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T01:34:33.263324Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1912.02200","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":"2026-07-05T01:34:33Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"YxLbx1Ke4I/L7WO0+KJsv6ldQ48iZ065qHeSse/XkPsGRSD7i9s9AXVUwbLCiuSbWVl0SffJMqPYFGKx9HyPDA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-05T23:31:46.494031Z"},"content_sha256":"f402226034c60e0d8afd06a59c1e8b89cca2a5890615c28539076604b91bdcd7","schema_version":"1.0","event_id":"sha256:f402226034c60e0d8afd06a59c1e8b89cca2a5890615c28539076604b91bdcd7"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2019:6LGBNKMQ5NXPL4JKRCMTSIS7YF","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Constraining Galactic Structure with the LISA White Dwarf Foreground","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["gr-qc"],"primary_cat":"astro-ph.GA","authors_text":"Chiara M. F. Mingarelli, Katelyn Breivik, Shane L. Larson","submitted_at":"2019-12-04T19:00:04Z","abstract_excerpt":"White dwarfs comprise 95% of all stellar remnants, and are thus an excellent tracer of old stellar populations in the Milky Way. Current and planned telescopes are not able to directly probe the white dwarf population in its entirety due to its inherently low luminosity. However, the Galactic population of double white dwarf binaries gives rise to a millihertz gravitational-wave foreground detectable by the Laser Interferometer Space Antenna (LISA). Here we show how characterizing this foreground's angular power spectrum will enable us to probe the Galactic structure in a novel way and measure"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1912.02200","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/1912.02200/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":"2026-07-05T01:34:33Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"eDlsOEjfgdCMVwhfsx0zsxjndaRjTewL4RNheeD8NRMVp5B2vNxREnb+aJCZm+0crDOJDqCeN0hmwpvo4z8vAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-05T23:31:46.494523Z"},"content_sha256":"2815067a0beebde00815ae497fd8ce3f61397e257e2fbd4b2f3182bc113401f5","schema_version":"1.0","event_id":"sha256:2815067a0beebde00815ae497fd8ce3f61397e257e2fbd4b2f3182bc113401f5"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/6LGBNKMQ5NXPL4JKRCMTSIS7YF/bundle.json","state_url":"https://pith.science/pith/6LGBNKMQ5NXPL4JKRCMTSIS7YF/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/6LGBNKMQ5NXPL4JKRCMTSIS7YF/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":"2026-08-05T23:31:46Z","links":{"resolver":"https://pith.science/pith/6LGBNKMQ5NXPL4JKRCMTSIS7YF","bundle":"https://pith.science/pith/6LGBNKMQ5NXPL4JKRCMTSIS7YF/bundle.json","state":"https://pith.science/pith/6LGBNKMQ5NXPL4JKRCMTSIS7YF/state.json","well_known_bundle":"https://pith.science/.well-known/pith/6LGBNKMQ5NXPL4JKRCMTSIS7YF/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:6LGBNKMQ5NXPL4JKRCMTSIS7YF","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":"7252dc0feb25ea3e6e535bcb22eecf711f6b97ebc440594d4d819ee0f8d2d5c1","cross_cats_sorted":["gr-qc"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2019-12-04T19:00:04Z","title_canon_sha256":"616d4b2c53522ce7961b1e84b4055ba89856e073bce7df3b949e0226a7fd4c43"},"schema_version":"1.0","source":{"id":"1912.02200","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1912.02200","created_at":"2026-07-05T01:34:33Z"},{"alias_kind":"arxiv_version","alias_value":"1912.02200v2","created_at":"2026-07-05T01:34:33Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1912.02200","created_at":"2026-07-05T01:34:33Z"},{"alias_kind":"pith_short_12","alias_value":"6LGBNKMQ5NXP","created_at":"2026-07-05T01:34:33Z"},{"alias_kind":"pith_short_16","alias_value":"6LGBNKMQ5NXPL4JK","created_at":"2026-07-05T01:34:33Z"},{"alias_kind":"pith_short_8","alias_value":"6LGBNKMQ","created_at":"2026-07-05T01:34:33Z"}],"graph_snapshots":[{"event_id":"sha256:2815067a0beebde00815ae497fd8ce3f61397e257e2fbd4b2f3182bc113401f5","target":"graph","created_at":"2026-07-05T01:34:33Z","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/1912.02200/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"White dwarfs comprise 95% of all stellar remnants, and are thus an excellent tracer of old stellar populations in the Milky Way. Current and planned telescopes are not able to directly probe the white dwarf population in its entirety due to its inherently low luminosity. However, the Galactic population of double white dwarf binaries gives rise to a millihertz gravitational-wave foreground detectable by the Laser Interferometer Space Antenna (LISA). Here we show how characterizing this foreground's angular power spectrum will enable us to probe the Galactic structure in a novel way and measure","authors_text":"Chiara M. F. Mingarelli, Katelyn Breivik, Shane L. Larson","cross_cats":["gr-qc"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2019-12-04T19:00:04Z","title":"Constraining Galactic Structure with the LISA White Dwarf Foreground"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1912.02200","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:f402226034c60e0d8afd06a59c1e8b89cca2a5890615c28539076604b91bdcd7","target":"record","created_at":"2026-07-05T01:34:33Z","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":"7252dc0feb25ea3e6e535bcb22eecf711f6b97ebc440594d4d819ee0f8d2d5c1","cross_cats_sorted":["gr-qc"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2019-12-04T19:00:04Z","title_canon_sha256":"616d4b2c53522ce7961b1e84b4055ba89856e073bce7df3b949e0226a7fd4c43"},"schema_version":"1.0","source":{"id":"1912.02200","kind":"arxiv","version":2}},"canonical_sha256":"f2cc16a990eb6ef5f12a889939225fc1754c5ae8090e17c84e2414405b36d55c","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"f2cc16a990eb6ef5f12a889939225fc1754c5ae8090e17c84e2414405b36d55c","first_computed_at":"2026-07-05T01:34:33.263324Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T01:34:33.263324Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"LyVzZ5u0wCLF9HepU5GOcZtRpwl4ch5w9EyTcRaRNGJz56A5NPH+3109XYQ4D4EcX0+cpIoQub48fKN3aHthCQ==","signature_status":"signed_v1","signed_at":"2026-07-05T01:34:33.263676Z","signed_message":"canonical_sha256_bytes"},"source_id":"1912.02200","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:f402226034c60e0d8afd06a59c1e8b89cca2a5890615c28539076604b91bdcd7","sha256:2815067a0beebde00815ae497fd8ce3f61397e257e2fbd4b2f3182bc113401f5"],"state_sha256":"2e85628eff932d96784a6b9096d9154ed4c8cf4e8aa25471bd2e198e2a020174"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"8JUZ1atZ5pseH7k7iRp3QH2thTSPqkxsiyn89sgd34BVttpECuKFuW38/jboOTJxDBI2/BySAW8FN0Jz8GI6Cg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-05T23:31:46.497960Z","bundle_sha256":"9efd7af7297ce660b50a189998c73b131c69969020192b074e4415b7a14740d5"}}