{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2016:V4ZYKT2R5LTWCMYPDG272DMPIA","short_pith_number":"pith:V4ZYKT2R","schema_version":"1.0","canonical_sha256":"af33854f51eae761330f19b5fd0d8f401a8381132c82a1d2a02b31a1d19ef461","source":{"kind":"arxiv","id":"1603.02358","version":1},"attestation_state":"computed","paper":{"title":"Detection of gamma-ray emission from globular clusters M 15, NGC 6397, NGC 5904, NGC 6218 and NGC 6139 with Fermi-LAT","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"J. N. Zhou, J. Z. Yan, L. Fu, L. Zhang, P. F. Zhang, Q. Z. Liu, Y. L. Xin","submitted_at":"2016-03-08T02:42:55Z","abstract_excerpt":"In the third Fermi catalogue (3FGL) there are sixteen gamma-ray globular clusters. After analyzing the recent released Pass 8 data of Fermi Large Area Telescope (LAT), we report the discovery of significant gamma-ray emission from M 15 and NGC 6397, confirm that NGC 5904 is a gamma-ray emitter and find evidence of gamma-ray emission from NGC 6218 and NGC 6139. Inter- estingly, in the globular clusters M 15, NGC 6397 and NGC 5904, millisecond pulsars (MSPs) have been found in radio or X-rays, which are strongly in support of the MSP origin of the gamma-ray emission. However, due to the relative"},"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":"1603.02358","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2016-03-08T02:42:55Z","cross_cats_sorted":[],"title_canon_sha256":"becb1d68499ff3dc18fecdbeb9fca94f2c098cf415604ad7f3611fb717d4ef20","abstract_canon_sha256":"e3c1b7b267b2b086ab259877ff61ee8eb13dabb5977387f8bee578d0bdcf34d3"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:18:28.720218Z","signature_b64":"NRGiz8S9gdpwHthcBBG6yIT9wxBBM1BexhEuH53GZbSfxihjuWKfYvfCEnMZ+CprbKqZgUDgk12hBNiV1Hf1Dw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"af33854f51eae761330f19b5fd0d8f401a8381132c82a1d2a02b31a1d19ef461","last_reissued_at":"2026-05-18T01:18:28.719594Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:18:28.719594Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Detection of gamma-ray emission from globular clusters M 15, NGC 6397, NGC 5904, NGC 6218 and NGC 6139 with Fermi-LAT","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"J. N. Zhou, J. Z. Yan, L. Fu, L. Zhang, P. F. Zhang, Q. Z. Liu, Y. L. Xin","submitted_at":"2016-03-08T02:42:55Z","abstract_excerpt":"In the third Fermi catalogue (3FGL) there are sixteen gamma-ray globular clusters. After analyzing the recent released Pass 8 data of Fermi Large Area Telescope (LAT), we report the discovery of significant gamma-ray emission from M 15 and NGC 6397, confirm that NGC 5904 is a gamma-ray emitter and find evidence of gamma-ray emission from NGC 6218 and NGC 6139. Inter- estingly, in the globular clusters M 15, NGC 6397 and NGC 5904, millisecond pulsars (MSPs) have been found in radio or X-rays, which are strongly in support of the MSP origin of the gamma-ray emission. However, due to the relative"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1603.02358","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"},"aliases":[{"alias_kind":"arxiv","alias_value":"1603.02358","created_at":"2026-05-18T01:18:28.719668+00:00"},{"alias_kind":"arxiv_version","alias_value":"1603.02358v1","created_at":"2026-05-18T01:18:28.719668+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1603.02358","created_at":"2026-05-18T01:18:28.719668+00:00"},{"alias_kind":"pith_short_12","alias_value":"V4ZYKT2R5LTW","created_at":"2026-05-18T12:30:46.583412+00:00"},{"alias_kind":"pith_short_16","alias_value":"V4ZYKT2R5LTWCMYP","created_at":"2026-05-18T12:30:46.583412+00:00"},{"alias_kind":"pith_short_8","alias_value":"V4ZYKT2R","created_at":"2026-05-18T12:30:46.583412+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/V4ZYKT2R5LTWCMYPDG272DMPIA","json":"https://pith.science/pith/V4ZYKT2R5LTWCMYPDG272DMPIA.json","graph_json":"https://pith.science/api/pith-number/V4ZYKT2R5LTWCMYPDG272DMPIA/graph.json","events_json":"https://pith.science/api/pith-number/V4ZYKT2R5LTWCMYPDG272DMPIA/events.json","paper":"https://pith.science/paper/V4ZYKT2R"},"agent_actions":{"view_html":"https://pith.science/pith/V4ZYKT2R5LTWCMYPDG272DMPIA","download_json":"https://pith.science/pith/V4ZYKT2R5LTWCMYPDG272DMPIA.json","view_paper":"https://pith.science/paper/V4ZYKT2R","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1603.02358&json=true","fetch_graph":"https://pith.science/api/pith-number/V4ZYKT2R5LTWCMYPDG272DMPIA/graph.json","fetch_events":"https://pith.science/api/pith-number/V4ZYKT2R5LTWCMYPDG272DMPIA/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/V4ZYKT2R5LTWCMYPDG272DMPIA/action/timestamp_anchor","attest_storage":"https://pith.science/pith/V4ZYKT2R5LTWCMYPDG272DMPIA/action/storage_attestation","attest_author":"https://pith.science/pith/V4ZYKT2R5LTWCMYPDG272DMPIA/action/author_attestation","sign_citation":"https://pith.science/pith/V4ZYKT2R5LTWCMYPDG272DMPIA/action/citation_signature","submit_replication":"https://pith.science/pith/V4ZYKT2R5LTWCMYPDG272DMPIA/action/replication_record"}},"created_at":"2026-05-18T01:18:28.719668+00:00","updated_at":"2026-05-18T01:18:28.719668+00:00"}