{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2019:5XYI5I4HCEXYY3CZOLK6OJ63GW","short_pith_number":"pith:5XYI5I4H","schema_version":"1.0","canonical_sha256":"edf08ea387112f8c6c5972d5e727db3590751b6deb48c859334f5f7d61dbb2e6","source":{"kind":"arxiv","id":"1909.01171","version":1},"attestation_state":"computed","paper":{"title":"Constraining the evaporation rate of primordial black holes using archival data from VERITAS","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"Sajan Kumar (for the VERITAS Collaboration)","submitted_at":"2019-09-03T13:37:00Z","abstract_excerpt":"Primordial black holes (PBHs) are thought to have been formed as a result of density fluctuations in the very early Universe. It is suggested that PBHs of mass $\\sim 5 \\times 10^{14} \\mathrm{\\ g}$ or less have evaporated through the release of Hawking radiation by the present day. However, PBHs of initial mass $10^{15} \\mathrm{\\ g}$ should still be evaporating at the present epoch. Over the past few years, very high-energy (VHE; E $>$ 100 GeV) gamma-ray emission from PBHs in the form of a burst has been searched for using ground-based gamma-ray instruments. However, no observational evidence h"},"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":"1909.01171","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2019-09-03T13:37:00Z","cross_cats_sorted":[],"title_canon_sha256":"6e10b875a0421d790a6629b39f624f9b8a079b12bc7a54cb39b5fb2c8227c9f6","abstract_canon_sha256":"7b68af967c3ce75c5257a4fbd8c781e53beec5839c63ffbf021a5f16bf963c4c"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T00:01:16.530456Z","signature_b64":"+HLIJK10/obVGbEJx4b0MsFmBJDLnxgCEaW5BpVdaq/oWa9dbcrxxjyvSs5JgvbPQUG2COpYz6OgpcB6lj4bAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"edf08ea387112f8c6c5972d5e727db3590751b6deb48c859334f5f7d61dbb2e6","last_reissued_at":"2026-07-05T00:01:16.530113Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T00:01:16.530113Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Constraining the evaporation rate of primordial black holes using archival data from VERITAS","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"Sajan Kumar (for the VERITAS Collaboration)","submitted_at":"2019-09-03T13:37:00Z","abstract_excerpt":"Primordial black holes (PBHs) are thought to have been formed as a result of density fluctuations in the very early Universe. It is suggested that PBHs of mass $\\sim 5 \\times 10^{14} \\mathrm{\\ g}$ or less have evaporated through the release of Hawking radiation by the present day. However, PBHs of initial mass $10^{15} \\mathrm{\\ g}$ should still be evaporating at the present epoch. Over the past few years, very high-energy (VHE; E $>$ 100 GeV) gamma-ray emission from PBHs in the form of a burst has been searched for using ground-based gamma-ray instruments. However, no observational evidence h"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1909.01171","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/1909.01171/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"},"aliases":[{"alias_kind":"arxiv","alias_value":"1909.01171","created_at":"2026-07-05T00:01:16.530169+00:00"},{"alias_kind":"arxiv_version","alias_value":"1909.01171v1","created_at":"2026-07-05T00:01:16.530169+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1909.01171","created_at":"2026-07-05T00:01:16.530169+00:00"},{"alias_kind":"pith_short_12","alias_value":"5XYI5I4HCEXY","created_at":"2026-07-05T00:01:16.530169+00:00"},{"alias_kind":"pith_short_16","alias_value":"5XYI5I4HCEXYY3CZ","created_at":"2026-07-05T00:01:16.530169+00:00"},{"alias_kind":"pith_short_8","alias_value":"5XYI5I4H","created_at":"2026-07-05T00:01:16.530169+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/5XYI5I4HCEXYY3CZOLK6OJ63GW","json":"https://pith.science/pith/5XYI5I4HCEXYY3CZOLK6OJ63GW.json","graph_json":"https://pith.science/api/pith-number/5XYI5I4HCEXYY3CZOLK6OJ63GW/graph.json","events_json":"https://pith.science/api/pith-number/5XYI5I4HCEXYY3CZOLK6OJ63GW/events.json","paper":"https://pith.science/paper/5XYI5I4H"},"agent_actions":{"view_html":"https://pith.science/pith/5XYI5I4HCEXYY3CZOLK6OJ63GW","download_json":"https://pith.science/pith/5XYI5I4HCEXYY3CZOLK6OJ63GW.json","view_paper":"https://pith.science/paper/5XYI5I4H","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1909.01171&json=true","fetch_graph":"https://pith.science/api/pith-number/5XYI5I4HCEXYY3CZOLK6OJ63GW/graph.json","fetch_events":"https://pith.science/api/pith-number/5XYI5I4HCEXYY3CZOLK6OJ63GW/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/5XYI5I4HCEXYY3CZOLK6OJ63GW/action/timestamp_anchor","attest_storage":"https://pith.science/pith/5XYI5I4HCEXYY3CZOLK6OJ63GW/action/storage_attestation","attest_author":"https://pith.science/pith/5XYI5I4HCEXYY3CZOLK6OJ63GW/action/author_attestation","sign_citation":"https://pith.science/pith/5XYI5I4HCEXYY3CZOLK6OJ63GW/action/citation_signature","submit_replication":"https://pith.science/pith/5XYI5I4HCEXYY3CZOLK6OJ63GW/action/replication_record"}},"created_at":"2026-07-05T00:01:16.530169+00:00","updated_at":"2026-07-05T00:01:16.530169+00:00"}