{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2015:WUET4GOAHWYZ4HMUJD3S4B2AVY","short_pith_number":"pith:WUET4GOA","schema_version":"1.0","canonical_sha256":"b5093e19c03db19e1d9448f72e0740ae26dc0f93a5994450f51fa3e59d4f3ecb","source":{"kind":"arxiv","id":"1506.02988","version":1},"attestation_state":"computed","paper":{"title":"The evolution of a jet ejection of the ultraluminous X-ray source Holmberg II X-1","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.CO"],"primary_cat":"astro-ph.HE","authors_text":"D. Cseh, E. Koerding, F. Grise, H. Falcke, J. C. A. Miller-Jones, P. G. Jonker, P. Kaaret, S. Corbel, S. Frey, Z. Paragi","submitted_at":"2015-06-09T16:33:00Z","abstract_excerpt":"We present quasi-simultaneous, multi-epoch radio and X-ray measurements of Holmberg II X-1 using the European VLBI Network (EVN), the Karl G. Jansky Very Large Array (VLA), and the Chandra and Swift X-ray telescopes. The X-ray data show apparently hard spectra with steady X-ray luminosities 4 months apart from each other. In the high-resolution EVN radio observations, we have detected an extended milli-arcsecond scale source with unboosted radio emission. The source emits non-thermal, likely optically thin synchrotron emission and its morphology is consistent with a jet ejection. The 9-GHz VLA"},"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":"1506.02988","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2015-06-09T16:33:00Z","cross_cats_sorted":["astro-ph.CO"],"title_canon_sha256":"a4967793a7c9f888d56d2600b0015067a11ff142ae5be9b73748154bf3492853","abstract_canon_sha256":"56652b7f4bf8ff8cef8df5653b3cd05c8f4d95f503dbcb432037d80bf42a6e1e"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:55:40.313759Z","signature_b64":"jogiArTWxHYS11JYqVKIByCP93E8IQ5nk4bCb/UYtqW0z/t+XSsXy+Vuo7jc59hc5epGPKD8cKNHtHXSfSxgAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"b5093e19c03db19e1d9448f72e0740ae26dc0f93a5994450f51fa3e59d4f3ecb","last_reissued_at":"2026-05-18T01:55:40.313008Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:55:40.313008Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"The evolution of a jet ejection of the ultraluminous X-ray source Holmberg II X-1","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.CO"],"primary_cat":"astro-ph.HE","authors_text":"D. Cseh, E. Koerding, F. Grise, H. Falcke, J. C. A. Miller-Jones, P. G. Jonker, P. Kaaret, S. Corbel, S. Frey, Z. Paragi","submitted_at":"2015-06-09T16:33:00Z","abstract_excerpt":"We present quasi-simultaneous, multi-epoch radio and X-ray measurements of Holmberg II X-1 using the European VLBI Network (EVN), the Karl G. Jansky Very Large Array (VLA), and the Chandra and Swift X-ray telescopes. The X-ray data show apparently hard spectra with steady X-ray luminosities 4 months apart from each other. In the high-resolution EVN radio observations, we have detected an extended milli-arcsecond scale source with unboosted radio emission. The source emits non-thermal, likely optically thin synchrotron emission and its morphology is consistent with a jet ejection. The 9-GHz VLA"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1506.02988","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":"1506.02988","created_at":"2026-05-18T01:55:40.313123+00:00"},{"alias_kind":"arxiv_version","alias_value":"1506.02988v1","created_at":"2026-05-18T01:55:40.313123+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1506.02988","created_at":"2026-05-18T01:55:40.313123+00:00"},{"alias_kind":"pith_short_12","alias_value":"WUET4GOAHWYZ","created_at":"2026-05-18T12:29:47.479230+00:00"},{"alias_kind":"pith_short_16","alias_value":"WUET4GOAHWYZ4HMU","created_at":"2026-05-18T12:29:47.479230+00:00"},{"alias_kind":"pith_short_8","alias_value":"WUET4GOA","created_at":"2026-05-18T12:29:47.479230+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/WUET4GOAHWYZ4HMUJD3S4B2AVY","json":"https://pith.science/pith/WUET4GOAHWYZ4HMUJD3S4B2AVY.json","graph_json":"https://pith.science/api/pith-number/WUET4GOAHWYZ4HMUJD3S4B2AVY/graph.json","events_json":"https://pith.science/api/pith-number/WUET4GOAHWYZ4HMUJD3S4B2AVY/events.json","paper":"https://pith.science/paper/WUET4GOA"},"agent_actions":{"view_html":"https://pith.science/pith/WUET4GOAHWYZ4HMUJD3S4B2AVY","download_json":"https://pith.science/pith/WUET4GOAHWYZ4HMUJD3S4B2AVY.json","view_paper":"https://pith.science/paper/WUET4GOA","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1506.02988&json=true","fetch_graph":"https://pith.science/api/pith-number/WUET4GOAHWYZ4HMUJD3S4B2AVY/graph.json","fetch_events":"https://pith.science/api/pith-number/WUET4GOAHWYZ4HMUJD3S4B2AVY/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/WUET4GOAHWYZ4HMUJD3S4B2AVY/action/timestamp_anchor","attest_storage":"https://pith.science/pith/WUET4GOAHWYZ4HMUJD3S4B2AVY/action/storage_attestation","attest_author":"https://pith.science/pith/WUET4GOAHWYZ4HMUJD3S4B2AVY/action/author_attestation","sign_citation":"https://pith.science/pith/WUET4GOAHWYZ4HMUJD3S4B2AVY/action/citation_signature","submit_replication":"https://pith.science/pith/WUET4GOAHWYZ4HMUJD3S4B2AVY/action/replication_record"}},"created_at":"2026-05-18T01:55:40.313123+00:00","updated_at":"2026-05-18T01:55:40.313123+00:00"}