{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2018:QTCS2OHJWQSGV4MAALPORBRV3E","short_pith_number":"pith:QTCS2OHJ","schema_version":"1.0","canonical_sha256":"84c52d38e9b4246af18002dee88635d92f6dddb3ca45f8b3ddc5876c82c3f66d","source":{"kind":"arxiv","id":"1807.03075","version":2},"attestation_state":"computed","paper":{"title":"Voyager 1 $e^\\pm$ Further Constrain Primordial Black Holes as Dark Matter","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.CO","hep-ph"],"primary_cat":"astro-ph.HE","authors_text":"Marco Cirelli, Mathieu Boudaud","submitted_at":"2018-07-09T12:35:07Z","abstract_excerpt":"Primordial Black Holes (PBHs) with a mass $M \\lesssim {10^{17}}$g are expected to inject sub-GeV electrons and positrons in the Galaxy via Hawking radiation. These cosmic rays are shielded by the solar magnetic field for Earth-bound detectors, but not for Voyager-1, which is now beyond the heliopause. We use its data to constrain the fraction of PBHs to the dark matter in the Galaxy, finding that PBHs with $M<10^{16}$g cannot contribute more than 0.1% (or less for a lognormal mass distribution). Our limits are based on local galactic measurements and are thus complementary to those derived fro"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"1807.03075","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2018-07-09T12:35:07Z","cross_cats_sorted":["astro-ph.CO","hep-ph"],"title_canon_sha256":"19542178c942a3082b84b847c1e013544cd70d07d58f0fd334f7cf88d6cba222","abstract_canon_sha256":"1b4b650754ce79e9efe39291323dd17b7bd65fa545ebd8cb8cda78e0de0dca28"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:54:43.849382Z","signature_b64":"HBvnfQ+kgY99seN2bOSKzIxVZm+kPAbgopxnAHuY+r8JYwa4wb7NbnJRcBpTVzIy/jjsoKszhySpPQ2BpNUGDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"84c52d38e9b4246af18002dee88635d92f6dddb3ca45f8b3ddc5876c82c3f66d","last_reissued_at":"2026-05-17T23:54:43.848886Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:54:43.848886Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Voyager 1 $e^\\pm$ Further Constrain Primordial Black Holes as Dark Matter","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.CO","hep-ph"],"primary_cat":"astro-ph.HE","authors_text":"Marco Cirelli, Mathieu Boudaud","submitted_at":"2018-07-09T12:35:07Z","abstract_excerpt":"Primordial Black Holes (PBHs) with a mass $M \\lesssim {10^{17}}$g are expected to inject sub-GeV electrons and positrons in the Galaxy via Hawking radiation. These cosmic rays are shielded by the solar magnetic field for Earth-bound detectors, but not for Voyager-1, which is now beyond the heliopause. We use its data to constrain the fraction of PBHs to the dark matter in the Galaxy, finding that PBHs with $M<10^{16}$g cannot contribute more than 0.1% (or less for a lognormal mass distribution). Our limits are based on local galactic measurements and are thus complementary to those derived fro"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1807.03075","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"},"aliases":[{"alias_kind":"arxiv","alias_value":"1807.03075","created_at":"2026-05-17T23:54:43.848963+00:00"},{"alias_kind":"arxiv_version","alias_value":"1807.03075v2","created_at":"2026-05-17T23:54:43.848963+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1807.03075","created_at":"2026-05-17T23:54:43.848963+00:00"},{"alias_kind":"pith_short_12","alias_value":"QTCS2OHJWQSG","created_at":"2026-05-18T12:32:46.962924+00:00"},{"alias_kind":"pith_short_16","alias_value":"QTCS2OHJWQSGV4MA","created_at":"2026-05-18T12:32:46.962924+00:00"},{"alias_kind":"pith_short_8","alias_value":"QTCS2OHJ","created_at":"2026-05-18T12:32:46.962924+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":8,"internal_anchor_count":5,"sample":[{"citing_arxiv_id":"2006.02838","citing_title":"Primordial Black Holes as Dark Matter: Recent Developments","ref_index":148,"is_internal_anchor":true},{"citing_arxiv_id":"2601.19386","citing_title":"Constraints on Primordial Black Holes from Galactic Diffuse Synchrotron Emissions","ref_index":59,"is_internal_anchor":true},{"citing_arxiv_id":"2602.04858","citing_title":"Primordial black holes as cosmic accelerators of light dark matter: Novel direct detection constraints","ref_index":114,"is_internal_anchor":true},{"citing_arxiv_id":"2605.15197","citing_title":"Primordial Black Hole from Tensor-induced Density Fluctuation: First-order Phase Transitions and Domain Walls","ref_index":188,"is_internal_anchor":true},{"citing_arxiv_id":"2002.12778","citing_title":"Constraints on Primordial Black Holes","ref_index":151,"is_internal_anchor":true},{"citing_arxiv_id":"2604.26005","citing_title":"Asteroid-mass Primordial Black Holes as Dark Matter from Supersymmetry","ref_index":19,"is_internal_anchor":false},{"citing_arxiv_id":"2604.06858","citing_title":"Memory-Burden Suppression of Hawking Radiation and Neutrino Constraints on Primordial Black Holes","ref_index":62,"is_internal_anchor":false},{"citing_arxiv_id":"2604.20063","citing_title":"Purely Quadratic Non-Gaussianity from Tachyonic Instability: Primordial Black Holes and Scalar-Induced Gravitational Waves","ref_index":53,"is_internal_anchor":false}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/QTCS2OHJWQSGV4MAALPORBRV3E","json":"https://pith.science/pith/QTCS2OHJWQSGV4MAALPORBRV3E.json","graph_json":"https://pith.science/api/pith-number/QTCS2OHJWQSGV4MAALPORBRV3E/graph.json","events_json":"https://pith.science/api/pith-number/QTCS2OHJWQSGV4MAALPORBRV3E/events.json","paper":"https://pith.science/paper/QTCS2OHJ"},"agent_actions":{"view_html":"https://pith.science/pith/QTCS2OHJWQSGV4MAALPORBRV3E","download_json":"https://pith.science/pith/QTCS2OHJWQSGV4MAALPORBRV3E.json","view_paper":"https://pith.science/paper/QTCS2OHJ","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1807.03075&json=true","fetch_graph":"https://pith.science/api/pith-number/QTCS2OHJWQSGV4MAALPORBRV3E/graph.json","fetch_events":"https://pith.science/api/pith-number/QTCS2OHJWQSGV4MAALPORBRV3E/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/QTCS2OHJWQSGV4MAALPORBRV3E/action/timestamp_anchor","attest_storage":"https://pith.science/pith/QTCS2OHJWQSGV4MAALPORBRV3E/action/storage_attestation","attest_author":"https://pith.science/pith/QTCS2OHJWQSGV4MAALPORBRV3E/action/author_attestation","sign_citation":"https://pith.science/pith/QTCS2OHJWQSGV4MAALPORBRV3E/action/citation_signature","submit_replication":"https://pith.science/pith/QTCS2OHJWQSGV4MAALPORBRV3E/action/replication_record"}},"created_at":"2026-05-17T23:54:43.848963+00:00","updated_at":"2026-05-17T23:54:43.848963+00:00"}