{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2017:DMAD5J3E7T3N5ODP7NT7FLNJPQ","short_pith_number":"pith:DMAD5J3E","schema_version":"1.0","canonical_sha256":"1b003ea764fcf6deb86ffb67f2ada97c087d5e52495543347276007dc3c2466d","source":{"kind":"arxiv","id":"1702.05143","version":1},"attestation_state":"computed","paper":{"title":"Searching for the expelled hydrogen envelope in Type I supernovae via late-time H-alpha emission","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"D. Pooley, G. H. Marion, J. C. Wheeler, J. M. Silverman, J. Vinko, K. Sarneczky, P. Kelly, P. MacQueen, T. Szalai","submitted_at":"2017-02-16T20:12:31Z","abstract_excerpt":"We report the first results from our long-term observational survey aimed at discovering late-time interaction between the ejecta of hydrogen-poor Type I supernovae and the hydrogen-rich envelope expelled from the progenitor star several decades/centuries before explosion. The expelled envelope, moving with a velocity of ~10 -- 100 km s$^{-1}$, is expected to be caught up by the fast-moving SN ejecta several years/decades after explosion depending on the history of the mass-loss process acting in the progenitor star prior to explosion. The collision between the SN ejecta and the circumstellar "},"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":"1702.05143","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2017-02-16T20:12:31Z","cross_cats_sorted":[],"title_canon_sha256":"767d6dc1f3f640db7fbea2ffc15e9f78190215a2149e01614650ef492ad688c6","abstract_canon_sha256":"52676bf42d43e1fe24be62c1d57a45a68f0d2b836ed4a247c5dbca7b9061d871"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:49:09.059853Z","signature_b64":"GWTGtzRBsC16oZ8qW9g45K7w8eJmk6FiyR2PQOnAWtWjGRIDcblcvmKHc1IuzfU4dlBLivv++5BIMDQZTjPTDQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"1b003ea764fcf6deb86ffb67f2ada97c087d5e52495543347276007dc3c2466d","last_reissued_at":"2026-05-18T00:49:09.059251Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:49:09.059251Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Searching for the expelled hydrogen envelope in Type I supernovae via late-time H-alpha emission","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"D. Pooley, G. H. Marion, J. C. Wheeler, J. M. Silverman, J. Vinko, K. Sarneczky, P. Kelly, P. MacQueen, T. Szalai","submitted_at":"2017-02-16T20:12:31Z","abstract_excerpt":"We report the first results from our long-term observational survey aimed at discovering late-time interaction between the ejecta of hydrogen-poor Type I supernovae and the hydrogen-rich envelope expelled from the progenitor star several decades/centuries before explosion. The expelled envelope, moving with a velocity of ~10 -- 100 km s$^{-1}$, is expected to be caught up by the fast-moving SN ejecta several years/decades after explosion depending on the history of the mass-loss process acting in the progenitor star prior to explosion. The collision between the SN ejecta and the circumstellar "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1702.05143","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":"1702.05143","created_at":"2026-05-18T00:49:09.059339+00:00"},{"alias_kind":"arxiv_version","alias_value":"1702.05143v1","created_at":"2026-05-18T00:49:09.059339+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1702.05143","created_at":"2026-05-18T00:49:09.059339+00:00"},{"alias_kind":"pith_short_12","alias_value":"DMAD5J3E7T3N","created_at":"2026-05-18T12:31:10.602751+00:00"},{"alias_kind":"pith_short_16","alias_value":"DMAD5J3E7T3N5ODP","created_at":"2026-05-18T12:31:10.602751+00:00"},{"alias_kind":"pith_short_8","alias_value":"DMAD5J3E","created_at":"2026-05-18T12:31:10.602751+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/DMAD5J3E7T3N5ODP7NT7FLNJPQ","json":"https://pith.science/pith/DMAD5J3E7T3N5ODP7NT7FLNJPQ.json","graph_json":"https://pith.science/api/pith-number/DMAD5J3E7T3N5ODP7NT7FLNJPQ/graph.json","events_json":"https://pith.science/api/pith-number/DMAD5J3E7T3N5ODP7NT7FLNJPQ/events.json","paper":"https://pith.science/paper/DMAD5J3E"},"agent_actions":{"view_html":"https://pith.science/pith/DMAD5J3E7T3N5ODP7NT7FLNJPQ","download_json":"https://pith.science/pith/DMAD5J3E7T3N5ODP7NT7FLNJPQ.json","view_paper":"https://pith.science/paper/DMAD5J3E","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1702.05143&json=true","fetch_graph":"https://pith.science/api/pith-number/DMAD5J3E7T3N5ODP7NT7FLNJPQ/graph.json","fetch_events":"https://pith.science/api/pith-number/DMAD5J3E7T3N5ODP7NT7FLNJPQ/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/DMAD5J3E7T3N5ODP7NT7FLNJPQ/action/timestamp_anchor","attest_storage":"https://pith.science/pith/DMAD5J3E7T3N5ODP7NT7FLNJPQ/action/storage_attestation","attest_author":"https://pith.science/pith/DMAD5J3E7T3N5ODP7NT7FLNJPQ/action/author_attestation","sign_citation":"https://pith.science/pith/DMAD5J3E7T3N5ODP7NT7FLNJPQ/action/citation_signature","submit_replication":"https://pith.science/pith/DMAD5J3E7T3N5ODP7NT7FLNJPQ/action/replication_record"}},"created_at":"2026-05-18T00:49:09.059339+00:00","updated_at":"2026-05-18T00:49:09.059339+00:00"}