{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2013:2TKIWKNQUO5BNMBQXOHMCQWGFT","short_pith_number":"pith:2TKIWKNQ","canonical_record":{"source":{"id":"1306.5122","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2013-06-21T13:09:02Z","cross_cats_sorted":[],"title_canon_sha256":"56653b3359e0fe0a177bbb4046bc42904a0308d067b411a5bffafec9b3da88a3","abstract_canon_sha256":"de93fd2cccc2f33e3777fb86c15c7afc54f5c128494ecadb64a574ac052ec3d0"},"schema_version":"1.0"},"canonical_sha256":"d4d48b29b0a3ba16b030bb8ec142c62cf19d76dd88b9455f72c86b2ddc7cba6e","source":{"kind":"arxiv","id":"1306.5122","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1306.5122","created_at":"2026-05-18T01:49:14Z"},{"alias_kind":"arxiv_version","alias_value":"1306.5122v1","created_at":"2026-05-18T01:49:14Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1306.5122","created_at":"2026-05-18T01:49:14Z"},{"alias_kind":"pith_short_12","alias_value":"2TKIWKNQUO5B","created_at":"2026-05-18T12:27:32Z"},{"alias_kind":"pith_short_16","alias_value":"2TKIWKNQUO5BNMBQ","created_at":"2026-05-18T12:27:32Z"},{"alias_kind":"pith_short_8","alias_value":"2TKIWKNQ","created_at":"2026-05-18T12:27:32Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2013:2TKIWKNQUO5BNMBQXOHMCQWGFT","target":"record","payload":{"canonical_record":{"source":{"id":"1306.5122","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2013-06-21T13:09:02Z","cross_cats_sorted":[],"title_canon_sha256":"56653b3359e0fe0a177bbb4046bc42904a0308d067b411a5bffafec9b3da88a3","abstract_canon_sha256":"de93fd2cccc2f33e3777fb86c15c7afc54f5c128494ecadb64a574ac052ec3d0"},"schema_version":"1.0"},"canonical_sha256":"d4d48b29b0a3ba16b030bb8ec142c62cf19d76dd88b9455f72c86b2ddc7cba6e","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:49:14.037506Z","signature_b64":"dCxl6bTVV/OiefyiqYdQX5H+nigb8JAcz0gvY1T3FGya/ms2nQdlov+ksYI98TyVufJMjIAUmbA2FXEMDyYzAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d4d48b29b0a3ba16b030bb8ec142c62cf19d76dd88b9455f72c86b2ddc7cba6e","last_reissued_at":"2026-05-18T01:49:14.036963Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:49:14.036963Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1306.5122","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T01:49:14Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"gGLTdkOvkM5fbyXkv7r3C7Dc5JzBUWKph5KEyel6H2r7bWeQG9EKrvDCG3eGGStbCVlzAL4fhv4NwGCoepJOAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-06T01:03:45.438481Z"},"content_sha256":"1de96287c89e1530100e7f597fea6bcc7dafd815a9ed27b7edb12e6fdaa2733e","schema_version":"1.0","event_id":"sha256:1de96287c89e1530100e7f597fea6bcc7dafd815a9ed27b7edb12e6fdaa2733e"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2013:2TKIWKNQUO5BNMBQXOHMCQWGFT","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Type IIP supernova 2008in: the explosion of a normal red supergiant","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"2), (2) ITEP, (3) Institute of Astronomy, Garching, Moscow, Moscow), N.N. Chugai (3) ((1) MPA, RAS, V.P. Utrobin (1","submitted_at":"2013-06-21T13:09:02Z","abstract_excerpt":"The explosion energy and the ejecta mass of a type IIP supernova make up the basis for the theory of explosion mechanism. So far, these parameters have only been determined for seven events. Type IIP supernova 2008in is another well-observed event for which a detailed hydrodynamic modeling can be used to derive the supernova parameters. Hydrodynamic modeling was employed to describe the bolometric light curve and the expansion velocities at the photosphere level. A time-dependent model for hydrogen ionization and excitation was applied to model the Halpha and Hbeta line profiles. We found an e"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1306.5122","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"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T01:49:14Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"P7IedRXN55XvLOC6bBZTvPMuAOcu0QrMbZAn/0zi5M/0LIaEOyAv5ZOkc0OQcABksr73xD2fpOboX1zJAAz4DA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-06T01:03:45.438825Z"},"content_sha256":"a94cf8281dcfc2810e626f054ce8b37564d4f93db6eebf4d36bacad61ee3d978","schema_version":"1.0","event_id":"sha256:a94cf8281dcfc2810e626f054ce8b37564d4f93db6eebf4d36bacad61ee3d978"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/2TKIWKNQUO5BNMBQXOHMCQWGFT/bundle.json","state_url":"https://pith.science/pith/2TKIWKNQUO5BNMBQXOHMCQWGFT/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/2TKIWKNQUO5BNMBQXOHMCQWGFT/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-06-06T01:03:45Z","links":{"resolver":"https://pith.science/pith/2TKIWKNQUO5BNMBQXOHMCQWGFT","bundle":"https://pith.science/pith/2TKIWKNQUO5BNMBQXOHMCQWGFT/bundle.json","state":"https://pith.science/pith/2TKIWKNQUO5BNMBQXOHMCQWGFT/state.json","well_known_bundle":"https://pith.science/.well-known/pith/2TKIWKNQUO5BNMBQXOHMCQWGFT/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2013:2TKIWKNQUO5BNMBQXOHMCQWGFT","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":"de93fd2cccc2f33e3777fb86c15c7afc54f5c128494ecadb64a574ac052ec3d0","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2013-06-21T13:09:02Z","title_canon_sha256":"56653b3359e0fe0a177bbb4046bc42904a0308d067b411a5bffafec9b3da88a3"},"schema_version":"1.0","source":{"id":"1306.5122","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1306.5122","created_at":"2026-05-18T01:49:14Z"},{"alias_kind":"arxiv_version","alias_value":"1306.5122v1","created_at":"2026-05-18T01:49:14Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1306.5122","created_at":"2026-05-18T01:49:14Z"},{"alias_kind":"pith_short_12","alias_value":"2TKIWKNQUO5B","created_at":"2026-05-18T12:27:32Z"},{"alias_kind":"pith_short_16","alias_value":"2TKIWKNQUO5BNMBQ","created_at":"2026-05-18T12:27:32Z"},{"alias_kind":"pith_short_8","alias_value":"2TKIWKNQ","created_at":"2026-05-18T12:27:32Z"}],"graph_snapshots":[{"event_id":"sha256:a94cf8281dcfc2810e626f054ce8b37564d4f93db6eebf4d36bacad61ee3d978","target":"graph","created_at":"2026-05-18T01:49:14Z","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":"The explosion energy and the ejecta mass of a type IIP supernova make up the basis for the theory of explosion mechanism. So far, these parameters have only been determined for seven events. Type IIP supernova 2008in is another well-observed event for which a detailed hydrodynamic modeling can be used to derive the supernova parameters. Hydrodynamic modeling was employed to describe the bolometric light curve and the expansion velocities at the photosphere level. A time-dependent model for hydrogen ionization and excitation was applied to model the Halpha and Hbeta line profiles. We found an e","authors_text":"2), (2) ITEP, (3) Institute of Astronomy, Garching, Moscow, Moscow), N.N. Chugai (3) ((1) MPA, RAS, V.P. Utrobin (1","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2013-06-21T13:09:02Z","title":"Type IIP supernova 2008in: the explosion of a normal red supergiant"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1306.5122","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":"sha256:1de96287c89e1530100e7f597fea6bcc7dafd815a9ed27b7edb12e6fdaa2733e","target":"record","created_at":"2026-05-18T01:49:14Z","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":"de93fd2cccc2f33e3777fb86c15c7afc54f5c128494ecadb64a574ac052ec3d0","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2013-06-21T13:09:02Z","title_canon_sha256":"56653b3359e0fe0a177bbb4046bc42904a0308d067b411a5bffafec9b3da88a3"},"schema_version":"1.0","source":{"id":"1306.5122","kind":"arxiv","version":1}},"canonical_sha256":"d4d48b29b0a3ba16b030bb8ec142c62cf19d76dd88b9455f72c86b2ddc7cba6e","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"d4d48b29b0a3ba16b030bb8ec142c62cf19d76dd88b9455f72c86b2ddc7cba6e","first_computed_at":"2026-05-18T01:49:14.036963Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T01:49:14.036963Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"dCxl6bTVV/OiefyiqYdQX5H+nigb8JAcz0gvY1T3FGya/ms2nQdlov+ksYI98TyVufJMjIAUmbA2FXEMDyYzAA==","signature_status":"signed_v1","signed_at":"2026-05-18T01:49:14.037506Z","signed_message":"canonical_sha256_bytes"},"source_id":"1306.5122","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:1de96287c89e1530100e7f597fea6bcc7dafd815a9ed27b7edb12e6fdaa2733e","sha256:a94cf8281dcfc2810e626f054ce8b37564d4f93db6eebf4d36bacad61ee3d978"],"state_sha256":"67b9d61ba5bcd5139a4eaac664e0a060f9e63010a3040f42b7e4caecdea2b613"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"w09cj/aeT3FVa0DwF32MQPL5noWcdigypCickfhK/I7udeYFF0KzznjWZl4TcMzbnGM+UKnnaWiqQAn0S35uDQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-06T01:03:45.440937Z","bundle_sha256":"351ad7ac410cc985e0960fd5ea64fb0c9dc2bc64242a12063edbd016ca386941"}}