{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2009:VJECJU7DB2LHJYTIZ5VCJSEGSX","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":"4fa1df81cad2ec36c5d754fdca7dedecd42f499b58d7b23a37d4ebf8afeae2ee","cross_cats_sorted":["astro-ph.SR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2009-08-18T19:18:36Z","title_canon_sha256":"4a231dca8267d725790c4bc619100279e3c5ad6d500f184d218ed94d11121830"},"schema_version":"1.0","source":{"id":"0908.2613","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"0908.2613","created_at":"2026-05-18T02:12:25Z"},{"alias_kind":"arxiv_version","alias_value":"0908.2613v1","created_at":"2026-05-18T02:12:25Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.0908.2613","created_at":"2026-05-18T02:12:25Z"},{"alias_kind":"pith_short_12","alias_value":"VJECJU7DB2LH","created_at":"2026-05-18T12:26:02Z"},{"alias_kind":"pith_short_16","alias_value":"VJECJU7DB2LHJYTI","created_at":"2026-05-18T12:26:02Z"},{"alias_kind":"pith_short_8","alias_value":"VJECJU7D","created_at":"2026-05-18T12:26:02Z"}],"graph_snapshots":[{"event_id":"sha256:cbe17030fde2041211d256bce19a337444b6c159ca471593bc3dac6d280149d1","target":"graph","created_at":"2026-05-18T02:12:25Z","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 present the results of near-infrared spectroscopic observations of dense ($\\simgt$ 10$^3$ cm$^{-3}$) iron ejecta in the young core-collapse supernova remnant G11.2-0.3. Five ejecta knots projected to be close to its center show a large dispersion in their Doppler shifts: two knots in the east are blueshifted by more than 1,000 \\kms, while three western knots have relatively small blueshifts of 20-60 \\kms. This velocity discrepancy may indicate that the western knots have been significantly decelerated or that there exists a systematic velocity difference among the knots. One ejecta filament","authors_text":"Bon-Chul Koo, Dae-Sik Moon, Ho-Gyu Lee, Jae-Joon Lee, Ji Yeon Seok, Keith Matthews, Masahiko Hayashi, Tae-Soo Pyo","cross_cats":["astro-ph.SR"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2009-08-18T19:18:36Z","title":"Dense Iron Ejecta and Core-collapse Supernova Explosion in the Young Supernova Remnant G11.2-0.3"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0908.2613","kind":"arxiv","version":1},"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":"sha256:6462a72dbcf672a80f2c0fc6975bebf752e60176dd4a8d617b8d5015068b7e0c","target":"record","created_at":"2026-05-18T02:12:25Z","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":"4fa1df81cad2ec36c5d754fdca7dedecd42f499b58d7b23a37d4ebf8afeae2ee","cross_cats_sorted":["astro-ph.SR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2009-08-18T19:18:36Z","title_canon_sha256":"4a231dca8267d725790c4bc619100279e3c5ad6d500f184d218ed94d11121830"},"schema_version":"1.0","source":{"id":"0908.2613","kind":"arxiv","version":1}},"canonical_sha256":"aa4824d3e30e9674e268cf6a24c88695faf15b87338dcf0284b40cf91a598afb","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"aa4824d3e30e9674e268cf6a24c88695faf15b87338dcf0284b40cf91a598afb","first_computed_at":"2026-05-18T02:12:25.491764Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T02:12:25.491764Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"8fa5L4fF/e3byGDfWb8IdCRsdvzrM5yX6pAhm0XRk1T4O4FJwZpenlzclI5YtCUaXQLfFk6/x5TSiS/dC3dnAw==","signature_status":"signed_v1","signed_at":"2026-05-18T02:12:25.492589Z","signed_message":"canonical_sha256_bytes"},"source_id":"0908.2613","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:6462a72dbcf672a80f2c0fc6975bebf752e60176dd4a8d617b8d5015068b7e0c","sha256:cbe17030fde2041211d256bce19a337444b6c159ca471593bc3dac6d280149d1"],"state_sha256":"59c88073bfcbf897df5a4ce8886d6f27c19d401a12dbe90a3967b45f09a3abe9"}