{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2020:A6A2NJVGPUJWWFQAK5CBGHJ4IR","short_pith_number":"pith:A6A2NJVG","canonical_record":{"source":{"id":"2008.04266","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2020-08-10T17:09:07Z","cross_cats_sorted":["astro-ph.HE"],"title_canon_sha256":"10da1bbdbeba40999959d34fe63f3f347b074f160e86d20f6ce2efdaf5957eda","abstract_canon_sha256":"ab8776b20d7e0d877720837bb4186ca483f1875e1b7cbc0efa69f79fd22c86bd"},"schema_version":"1.0"},"canonical_sha256":"0781a6a6a67d136b16005744131d3c4454fdae55d5b55653abd5c2f3c8fbf6a4","source":{"kind":"arxiv","id":"2008.04266","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2008.04266","created_at":"2026-07-05T01:36:31Z"},{"alias_kind":"arxiv_version","alias_value":"2008.04266v1","created_at":"2026-07-05T01:36:31Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2008.04266","created_at":"2026-07-05T01:36:31Z"},{"alias_kind":"pith_short_12","alias_value":"A6A2NJVGPUJW","created_at":"2026-07-05T01:36:31Z"},{"alias_kind":"pith_short_16","alias_value":"A6A2NJVGPUJWWFQA","created_at":"2026-07-05T01:36:31Z"},{"alias_kind":"pith_short_8","alias_value":"A6A2NJVG","created_at":"2026-07-05T01:36:31Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2020:A6A2NJVGPUJWWFQAK5CBGHJ4IR","target":"record","payload":{"canonical_record":{"source":{"id":"2008.04266","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2020-08-10T17:09:07Z","cross_cats_sorted":["astro-ph.HE"],"title_canon_sha256":"10da1bbdbeba40999959d34fe63f3f347b074f160e86d20f6ce2efdaf5957eda","abstract_canon_sha256":"ab8776b20d7e0d877720837bb4186ca483f1875e1b7cbc0efa69f79fd22c86bd"},"schema_version":"1.0"},"canonical_sha256":"0781a6a6a67d136b16005744131d3c4454fdae55d5b55653abd5c2f3c8fbf6a4","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T01:36:31.603170Z","signature_b64":"RzrR8fAt4qEVImlwDtKBiCSW4jaGZCGS/Qkp9oU8/5Vd6ubDqJ3uVbSKwybpjd+4HvQiY0J0liI3RJPC/lxqBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"0781a6a6a67d136b16005744131d3c4454fdae55d5b55653abd5c2f3c8fbf6a4","last_reissued_at":"2026-07-05T01:36:31.602736Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T01:36:31.602736Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2008.04266","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":"2026-07-05T01:36:31Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"jY7e742y0z0WHi24NzHEWvbh/L9Zo/8loe9WKULMG1i6ONEZGPunz8uE+kCM/92RsP96f4PWy2sww6RcnR+BCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-03T17:33:02.072874Z"},"content_sha256":"3c9728416a06d8821c1483c31eaca46234097a42a262beaad2f4dd1343acb2b1","schema_version":"1.0","event_id":"sha256:3c9728416a06d8821c1483c31eaca46234097a42a262beaad2f4dd1343acb2b1"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2020:A6A2NJVGPUJWWFQAK5CBGHJ4IR","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"On The Development of Multidimensional Progenitor Models For Core-collapse Supernovae","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.HE"],"primary_cat":"astro-ph.SR","authors_text":"C. E. Fields, S. M. Couch","submitted_at":"2020-08-10T17:09:07Z","abstract_excerpt":"Multidimensional hydrodynamic simulations of shell convection in massive stars suggest the development of aspherical perturbations that may be amplified during iron core-collapse. These perturbations have a crucial and qualitative impact on the delayed neutrino-driven core-collapse supernova explosion mechanism by increasing the total stress behind the stalled shock. In this paper, we investigate the properties of a 15 \\msun model evolved in 1-,2-, and 3-dimensions (3D) for the final $\\sim$424 seconds before gravitational instability and iron core-collapse using MESA and the FLASH simulation f"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2008.04266","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/2008.04266/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"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T01:36:31Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"qg+tvPb0+7SH2hTShcyo0c1RWNXHCM5tx6jkfkvSrc/VA38+BO+REQYet1sQH51t2UKaakM2p6YV/nGlRWCZDQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-03T17:33:02.073796Z"},"content_sha256":"2cd84f11c1d1f7abd76efd949e31cd095055239d49f9f3cfe363ac1de2044e61","schema_version":"1.0","event_id":"sha256:2cd84f11c1d1f7abd76efd949e31cd095055239d49f9f3cfe363ac1de2044e61"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/A6A2NJVGPUJWWFQAK5CBGHJ4IR/bundle.json","state_url":"https://pith.science/pith/A6A2NJVGPUJWWFQAK5CBGHJ4IR/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/A6A2NJVGPUJWWFQAK5CBGHJ4IR/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":"2026-08-03T17:33:02Z","links":{"resolver":"https://pith.science/pith/A6A2NJVGPUJWWFQAK5CBGHJ4IR","bundle":"https://pith.science/pith/A6A2NJVGPUJWWFQAK5CBGHJ4IR/bundle.json","state":"https://pith.science/pith/A6A2NJVGPUJWWFQAK5CBGHJ4IR/state.json","well_known_bundle":"https://pith.science/.well-known/pith/A6A2NJVGPUJWWFQAK5CBGHJ4IR/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2020:A6A2NJVGPUJWWFQAK5CBGHJ4IR","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":"ab8776b20d7e0d877720837bb4186ca483f1875e1b7cbc0efa69f79fd22c86bd","cross_cats_sorted":["astro-ph.HE"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2020-08-10T17:09:07Z","title_canon_sha256":"10da1bbdbeba40999959d34fe63f3f347b074f160e86d20f6ce2efdaf5957eda"},"schema_version":"1.0","source":{"id":"2008.04266","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2008.04266","created_at":"2026-07-05T01:36:31Z"},{"alias_kind":"arxiv_version","alias_value":"2008.04266v1","created_at":"2026-07-05T01:36:31Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2008.04266","created_at":"2026-07-05T01:36:31Z"},{"alias_kind":"pith_short_12","alias_value":"A6A2NJVGPUJW","created_at":"2026-07-05T01:36:31Z"},{"alias_kind":"pith_short_16","alias_value":"A6A2NJVGPUJWWFQA","created_at":"2026-07-05T01:36:31Z"},{"alias_kind":"pith_short_8","alias_value":"A6A2NJVG","created_at":"2026-07-05T01:36:31Z"}],"graph_snapshots":[{"event_id":"sha256:2cd84f11c1d1f7abd76efd949e31cd095055239d49f9f3cfe363ac1de2044e61","target":"graph","created_at":"2026-07-05T01:36:31Z","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"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2008.04266/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Multidimensional hydrodynamic simulations of shell convection in massive stars suggest the development of aspherical perturbations that may be amplified during iron core-collapse. These perturbations have a crucial and qualitative impact on the delayed neutrino-driven core-collapse supernova explosion mechanism by increasing the total stress behind the stalled shock. In this paper, we investigate the properties of a 15 \\msun model evolved in 1-,2-, and 3-dimensions (3D) for the final $\\sim$424 seconds before gravitational instability and iron core-collapse using MESA and the FLASH simulation f","authors_text":"C. E. Fields, S. M. Couch","cross_cats":["astro-ph.HE"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2020-08-10T17:09:07Z","title":"On The Development of Multidimensional Progenitor Models For Core-collapse Supernovae"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2008.04266","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":"sha256:3c9728416a06d8821c1483c31eaca46234097a42a262beaad2f4dd1343acb2b1","target":"record","created_at":"2026-07-05T01:36:31Z","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":"ab8776b20d7e0d877720837bb4186ca483f1875e1b7cbc0efa69f79fd22c86bd","cross_cats_sorted":["astro-ph.HE"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2020-08-10T17:09:07Z","title_canon_sha256":"10da1bbdbeba40999959d34fe63f3f347b074f160e86d20f6ce2efdaf5957eda"},"schema_version":"1.0","source":{"id":"2008.04266","kind":"arxiv","version":1}},"canonical_sha256":"0781a6a6a67d136b16005744131d3c4454fdae55d5b55653abd5c2f3c8fbf6a4","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"0781a6a6a67d136b16005744131d3c4454fdae55d5b55653abd5c2f3c8fbf6a4","first_computed_at":"2026-07-05T01:36:31.602736Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T01:36:31.602736Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"RzrR8fAt4qEVImlwDtKBiCSW4jaGZCGS/Qkp9oU8/5Vd6ubDqJ3uVbSKwybpjd+4HvQiY0J0liI3RJPC/lxqBQ==","signature_status":"signed_v1","signed_at":"2026-07-05T01:36:31.603170Z","signed_message":"canonical_sha256_bytes"},"source_id":"2008.04266","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:3c9728416a06d8821c1483c31eaca46234097a42a262beaad2f4dd1343acb2b1","sha256:2cd84f11c1d1f7abd76efd949e31cd095055239d49f9f3cfe363ac1de2044e61"],"state_sha256":"a8c41d57fcda419be16b2eec59c11ca894be128a66ecb8cdbdc97c464dadec5b"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"fSOvbQvxmbhgJS1ZbcTUTEmLj7Pvb/X+sB64iMT8jVLeM8N5pi2X1BOlXJqxrZjwzgT7TE42xINVfrxg1mKSCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-03T17:33:02.084389Z","bundle_sha256":"384ae4f58e4ee6e4989e36e2ccdb9507983e7c30e6d2c208144501a1cef20820"}}