{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:1997:LIP4MWMUOJADQZKINF7FRUZXCX","short_pith_number":"pith:LIP4MWMU","schema_version":"1.0","canonical_sha256":"5a1fc659947240386548697e58d33715cb518b456b593a69b8b4a9461adc9735","source":{"kind":"arxiv","id":"astro-ph/9710373","version":1},"attestation_state":"computed","paper":{"title":"Spatially Resolved STIS Spectroscopy of SN 1987A: Evidence for Shock Interaction with Circumstellar Gas","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"A. Boggess, A. C. Danks, B. E. Woodgate, C. S. J. Pun, C. W. Bowers, D. Lindler, G. Sonneborn, H. W. Moos, J. Grady, J. Loiacono, P. Lundqvist, P. Plait, R. A. Kimble, R. McCray, S. Kraemer, S. P. Maran, S. R. Heap, T. R. Gull","submitted_at":"1997-10-31T23:31:39Z","abstract_excerpt":"Visual and ultraviolet spatially resolved (~ 0.\"1) spectra of SN 1987A obtained on days 3715 and 3743 with the Space Telescope Imaging Spectrograph on the Hubble Space Telescope show that the high-velocity SN debris is colliding with circumstellar gas. Very broad Ly-alpha emission with velocities extending to ~ +/- 20,000 km/s originates inside the inner circumstellar ring and appears to fill most of the surface area within 0.\"67 +/- 0.\"03 (0.14 pc at a distance of 50 kpc) of the ring's center. The observed Ly-alpha flux from the shocked ejecta is (1.85 +/- 0.53) 10^{-13} erg/cm2/s and (1.25 +"},"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":"astro-ph/9710373","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"1997-10-31T23:31:39Z","cross_cats_sorted":[],"title_canon_sha256":"17fa88f18a7d2d38902c790efca83f3afcf15463d625c1b839e4f238e830c989","abstract_canon_sha256":"215fdac8e32337b83074a69be49f1d4b06296cbf6dcd5083d05bd29dae34767c"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T16:03:21.156069Z","signature_b64":"mveb+XTVhW1HPph5v4OiNVYg0ifqDif34P4Ed37GP7xBoE2zT7YVEZz5oXGNf0jUL1mRzGEi99XaoQ4H9RpbAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"5a1fc659947240386548697e58d33715cb518b456b593a69b8b4a9461adc9735","last_reissued_at":"2026-07-04T16:03:21.155706Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T16:03:21.155706Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Spatially Resolved STIS Spectroscopy of SN 1987A: Evidence for Shock Interaction with Circumstellar Gas","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"A. Boggess, A. C. Danks, B. E. Woodgate, C. S. J. Pun, C. W. Bowers, D. Lindler, G. Sonneborn, H. W. Moos, J. Grady, J. Loiacono, P. Lundqvist, P. Plait, R. A. Kimble, R. McCray, S. Kraemer, S. P. Maran, S. R. Heap, T. R. Gull","submitted_at":"1997-10-31T23:31:39Z","abstract_excerpt":"Visual and ultraviolet spatially resolved (~ 0.\"1) spectra of SN 1987A obtained on days 3715 and 3743 with the Space Telescope Imaging Spectrograph on the Hubble Space Telescope show that the high-velocity SN debris is colliding with circumstellar gas. Very broad Ly-alpha emission with velocities extending to ~ +/- 20,000 km/s originates inside the inner circumstellar ring and appears to fill most of the surface area within 0.\"67 +/- 0.\"03 (0.14 pc at a distance of 50 kpc) of the ring's center. The observed Ly-alpha flux from the shocked ejecta is (1.85 +/- 0.53) 10^{-13} erg/cm2/s and (1.25 +"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/9710373","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/astro-ph/9710373/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":"astro-ph/9710373","created_at":"2026-07-04T16:03:21.155767+00:00"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/9710373v1","created_at":"2026-07-04T16:03:21.155767+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/9710373","created_at":"2026-07-04T16:03:21.155767+00:00"},{"alias_kind":"pith_short_12","alias_value":"LIP4MWMUOJAD","created_at":"2026-07-04T16:03:21.155767+00:00"},{"alias_kind":"pith_short_16","alias_value":"LIP4MWMUOJADQZKI","created_at":"2026-07-04T16:03:21.155767+00:00"},{"alias_kind":"pith_short_8","alias_value":"LIP4MWMU","created_at":"2026-07-04T16:03:21.155767+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/LIP4MWMUOJADQZKINF7FRUZXCX","json":"https://pith.science/pith/LIP4MWMUOJADQZKINF7FRUZXCX.json","graph_json":"https://pith.science/api/pith-number/LIP4MWMUOJADQZKINF7FRUZXCX/graph.json","events_json":"https://pith.science/api/pith-number/LIP4MWMUOJADQZKINF7FRUZXCX/events.json","paper":"https://pith.science/paper/LIP4MWMU"},"agent_actions":{"view_html":"https://pith.science/pith/LIP4MWMUOJADQZKINF7FRUZXCX","download_json":"https://pith.science/pith/LIP4MWMUOJADQZKINF7FRUZXCX.json","view_paper":"https://pith.science/paper/LIP4MWMU","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=astro-ph/9710373&json=true","fetch_graph":"https://pith.science/api/pith-number/LIP4MWMUOJADQZKINF7FRUZXCX/graph.json","fetch_events":"https://pith.science/api/pith-number/LIP4MWMUOJADQZKINF7FRUZXCX/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/LIP4MWMUOJADQZKINF7FRUZXCX/action/timestamp_anchor","attest_storage":"https://pith.science/pith/LIP4MWMUOJADQZKINF7FRUZXCX/action/storage_attestation","attest_author":"https://pith.science/pith/LIP4MWMUOJADQZKINF7FRUZXCX/action/author_attestation","sign_citation":"https://pith.science/pith/LIP4MWMUOJADQZKINF7FRUZXCX/action/citation_signature","submit_replication":"https://pith.science/pith/LIP4MWMUOJADQZKINF7FRUZXCX/action/replication_record"}},"created_at":"2026-07-04T16:03:21.155767+00:00","updated_at":"2026-07-04T16:03:21.155767+00:00"}