{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2014:FSAWDYZQ44A2DSHUGBSCDMT52U","merge_version":"pith-open-graph-merge-v1","event_count":2,"valid_event_count":2,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"79f6eee911d5f270dd280395a0016a64fadabb2c3ca4172bf957e5d70e0c79c5","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2014-05-19T12:55:37Z","title_canon_sha256":"44b643e2117bcdc1e3feb46a208534e937900c105b37844e952c5fab15c3e7be"},"schema_version":"1.0","source":{"id":"1405.4702","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1405.4702","created_at":"2026-05-18T01:43:10Z"},{"alias_kind":"arxiv_version","alias_value":"1405.4702v2","created_at":"2026-05-18T01:43:10Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1405.4702","created_at":"2026-05-18T01:43:10Z"},{"alias_kind":"pith_short_12","alias_value":"FSAWDYZQ44A2","created_at":"2026-05-18T12:28:28Z"},{"alias_kind":"pith_short_16","alias_value":"FSAWDYZQ44A2DSHU","created_at":"2026-05-18T12:28:28Z"},{"alias_kind":"pith_short_8","alias_value":"FSAWDYZQ","created_at":"2026-05-18T12:28:28Z"}],"graph_snapshots":[{"event_id":"sha256:96fd6fca7cc555ce650be2d9c3b8e2105280fc6adad6e6546431af16376ae7df","target":"graph","created_at":"2026-05-18T01:43:10Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"graph_snapshot":{"author_claims":{"count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","strong_count":0},"builder_version":"pith-number-builder-2026-05-17-v1","claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"paper":{"abstract_excerpt":"We report deep EVN and eMERLIN observations of the Type Ia SN 2014J in the nearby galaxy M 82. Our observations represent, together with JVLA observations of SNe 2011fe and 2014J, the most sensitive radio studies of Type Ia SNe ever. By combining data and a proper modeling of the radio emission, we constrain the mass-loss rate from the progenitor system of SN 2014J to $\\dot{M} \\lesssim 7.0\\times 10^{-10}\\, {\\rm M_{\\odot}\\, yr^{-1}}$ (3-$\\sigma$; for a wind speed of $100\\, {\\rm km s^{-1}}$). If the medium around the supernova is uniform, then $n_{\\rm ISM} \\lesssim 1.3 {\\rm cm^3}$ (3-$\\sigma$), ","authors_text":"A. Alberdi, C. Fransson, C.-I. Bjornsson, E. Ros, I. Marti-Vidal, J.C. Guirado, J.M. Marcaide, M.A. Perez-Torres, M. Argo, P. Lundqvist, R. Beswick, S. Ryder, T.W.M. Muxlow, Z. Paragi","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2014-05-19T12:55:37Z","title":"Constraints on the progenitor system and the environs of SN 2014J from deep radio observations"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1405.4702","kind":"arxiv","version":2},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:d6bbc946d547b2f28d810b6abc567ce8839c41502193467adb6071e462f9c05f","target":"record","created_at":"2026-05-18T01:43:10Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"79f6eee911d5f270dd280395a0016a64fadabb2c3ca4172bf957e5d70e0c79c5","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2014-05-19T12:55:37Z","title_canon_sha256":"44b643e2117bcdc1e3feb46a208534e937900c105b37844e952c5fab15c3e7be"},"schema_version":"1.0","source":{"id":"1405.4702","kind":"arxiv","version":2}},"canonical_sha256":"2c8161e330e701a1c8f4306421b27dd53d81ce2d6f8058746a8cc31f01c30a45","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"2c8161e330e701a1c8f4306421b27dd53d81ce2d6f8058746a8cc31f01c30a45","first_computed_at":"2026-05-18T01:43:10.996109Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:43:10.996109Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"rpxyh22AFbQj94L/emP+IU98Fg9s+3uK2vTNRMRUKoSuYjOFuzHTCEr1BfVErc7lax3JM+Gn3kXSSHlWGG51BQ==","signature_status":"signed_v1","signed_at":"2026-05-18T01:43:10.996781Z","signed_message":"canonical_sha256_bytes"},"source_id":"1405.4702","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d6bbc946d547b2f28d810b6abc567ce8839c41502193467adb6071e462f9c05f","sha256:96fd6fca7cc555ce650be2d9c3b8e2105280fc6adad6e6546431af16376ae7df"],"state_sha256":"e2ff09a9118aa6b98ea03f44e49dc9305c67bb906515d7a6f55987d88d95a9d8"}