{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2023:WCXGSHJ6V5CI3OIRZC34AJKPGT","short_pith_number":"pith:WCXGSHJ6","canonical_record":{"source":{"id":"2304.02662","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2023-04-05T18:00:02Z","cross_cats_sorted":["astro-ph.SR"],"title_canon_sha256":"ef2bd68ee3a0cc3f06b622faeb2af88528a61ef0f719ef63cec46617f06c9316","abstract_canon_sha256":"c44c8d9c756c597edf7e437cb90f87f67e5ee7e2abfe3c9b711caff48c3805b9"},"schema_version":"1.0"},"canonical_sha256":"b0ae691d3eaf448db911c8b7c0254f34e036c07595ed79f7eea0ee33f8ef9f75","source":{"kind":"arxiv","id":"2304.02662","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2304.02662","created_at":"2026-07-05T06:20:28Z"},{"alias_kind":"arxiv_version","alias_value":"2304.02662v1","created_at":"2026-07-05T06:20:28Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2304.02662","created_at":"2026-07-05T06:20:28Z"},{"alias_kind":"pith_short_12","alias_value":"WCXGSHJ6V5CI","created_at":"2026-07-05T06:20:28Z"},{"alias_kind":"pith_short_16","alias_value":"WCXGSHJ6V5CI3OIR","created_at":"2026-07-05T06:20:28Z"},{"alias_kind":"pith_short_8","alias_value":"WCXGSHJ6","created_at":"2026-07-05T06:20:28Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2023:WCXGSHJ6V5CI3OIRZC34AJKPGT","target":"record","payload":{"canonical_record":{"source":{"id":"2304.02662","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2023-04-05T18:00:02Z","cross_cats_sorted":["astro-ph.SR"],"title_canon_sha256":"ef2bd68ee3a0cc3f06b622faeb2af88528a61ef0f719ef63cec46617f06c9316","abstract_canon_sha256":"c44c8d9c756c597edf7e437cb90f87f67e5ee7e2abfe3c9b711caff48c3805b9"},"schema_version":"1.0"},"canonical_sha256":"b0ae691d3eaf448db911c8b7c0254f34e036c07595ed79f7eea0ee33f8ef9f75","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T06:20:28.206793Z","signature_b64":"LBVLBki44kdtIxwBvCVPpr1BOfHaz6Z99Hk3MJWOPoEQwKyaDbdsu7llwS79sTKgBL8gG1mxIDDcJO+K7OByCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"b0ae691d3eaf448db911c8b7c0254f34e036c07595ed79f7eea0ee33f8ef9f75","last_reissued_at":"2026-07-05T06:20:28.206339Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T06:20:28.206339Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2304.02662","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":"2026-07-05T06:20:28Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"WmiMPcoIuKa80hR6U1EqAwwrEYL2lshvXQVyWL3Fbhl1YeC7T0G+rzUucDFsRSFUd+3RuW0YZa/mXGoYJnl1Ag==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-20T14:19:22.596132Z"},"content_sha256":"aef668843923f607dfc9b74d4144482c954facbe53cdc63c3c9c770c26bb2f54","schema_version":"1.0","event_id":"sha256:aef668843923f607dfc9b74d4144482c954facbe53cdc63c3c9c770c26bb2f54"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2023:WCXGSHJ6V5CI3OIRZC34AJKPGT","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Exploring the Observability of Surviving Companions of Stripped-Envelope Supernovae: A Case Study of Type Ic SN 2020oi","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.SR"],"primary_cat":"astro-ph.HE","authors_text":"Hsin-Pei Chen, Kuo-Chuan Pan, Shiau-Jie Rau","submitted_at":"2023-04-05T18:00:02Z","abstract_excerpt":"Stripped-envelope supernovae (SE SNe) were considered as the explosions of single massive stars with strong stellar winds, while later observations favor binary origins. One direct evidence to support the binary origins is to find the surviving companions of SE SNe since previous numerical studies suggested that the binary companion should survive the supernova impact and could be detectable. Recently, Gagliano et al. (2022) reported that the nearby Type Ic SN 2020oi in M100 (~17.1 Mpc) resulted from a binary system based on the HST photometric and spectroscopic observation. Based on the sugge"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2304.02662","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/2304.02662/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":"2026-07-05T06:20:28Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"n+EYU3gCd9OePk0vKQFJ89mlpSKFe5zRLG1s/eFysHmFmO/7m2DGNupxn12VPspc5F55H/vUZj2YK0lx/L3vAQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-20T14:19:22.596652Z"},"content_sha256":"f5dd40e7f5f0811966754c5daf38be5c1806aa3a86479aadd18535cb79303733","schema_version":"1.0","event_id":"sha256:f5dd40e7f5f0811966754c5daf38be5c1806aa3a86479aadd18535cb79303733"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/WCXGSHJ6V5CI3OIRZC34AJKPGT/bundle.json","state_url":"https://pith.science/pith/WCXGSHJ6V5CI3OIRZC34AJKPGT/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/WCXGSHJ6V5CI3OIRZC34AJKPGT/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":"2026-08-20T14:19:22Z","links":{"resolver":"https://pith.science/pith/WCXGSHJ6V5CI3OIRZC34AJKPGT","bundle":"https://pith.science/pith/WCXGSHJ6V5CI3OIRZC34AJKPGT/bundle.json","state":"https://pith.science/pith/WCXGSHJ6V5CI3OIRZC34AJKPGT/state.json","well_known_bundle":"https://pith.science/.well-known/pith/WCXGSHJ6V5CI3OIRZC34AJKPGT/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2023:WCXGSHJ6V5CI3OIRZC34AJKPGT","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":"c44c8d9c756c597edf7e437cb90f87f67e5ee7e2abfe3c9b711caff48c3805b9","cross_cats_sorted":["astro-ph.SR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2023-04-05T18:00:02Z","title_canon_sha256":"ef2bd68ee3a0cc3f06b622faeb2af88528a61ef0f719ef63cec46617f06c9316"},"schema_version":"1.0","source":{"id":"2304.02662","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2304.02662","created_at":"2026-07-05T06:20:28Z"},{"alias_kind":"arxiv_version","alias_value":"2304.02662v1","created_at":"2026-07-05T06:20:28Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2304.02662","created_at":"2026-07-05T06:20:28Z"},{"alias_kind":"pith_short_12","alias_value":"WCXGSHJ6V5CI","created_at":"2026-07-05T06:20:28Z"},{"alias_kind":"pith_short_16","alias_value":"WCXGSHJ6V5CI3OIR","created_at":"2026-07-05T06:20:28Z"},{"alias_kind":"pith_short_8","alias_value":"WCXGSHJ6","created_at":"2026-07-05T06:20:28Z"}],"graph_snapshots":[{"event_id":"sha256:f5dd40e7f5f0811966754c5daf38be5c1806aa3a86479aadd18535cb79303733","target":"graph","created_at":"2026-07-05T06:20:28Z","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/2304.02662/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Stripped-envelope supernovae (SE SNe) were considered as the explosions of single massive stars with strong stellar winds, while later observations favor binary origins. One direct evidence to support the binary origins is to find the surviving companions of SE SNe since previous numerical studies suggested that the binary companion should survive the supernova impact and could be detectable. Recently, Gagliano et al. (2022) reported that the nearby Type Ic SN 2020oi in M100 (~17.1 Mpc) resulted from a binary system based on the HST photometric and spectroscopic observation. Based on the sugge","authors_text":"Hsin-Pei Chen, Kuo-Chuan Pan, Shiau-Jie Rau","cross_cats":["astro-ph.SR"],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2023-04-05T18:00:02Z","title":"Exploring the Observability of Surviving Companions of Stripped-Envelope Supernovae: A Case Study of Type Ic SN 2020oi"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2304.02662","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:aef668843923f607dfc9b74d4144482c954facbe53cdc63c3c9c770c26bb2f54","target":"record","created_at":"2026-07-05T06:20:28Z","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":"c44c8d9c756c597edf7e437cb90f87f67e5ee7e2abfe3c9b711caff48c3805b9","cross_cats_sorted":["astro-ph.SR"],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2023-04-05T18:00:02Z","title_canon_sha256":"ef2bd68ee3a0cc3f06b622faeb2af88528a61ef0f719ef63cec46617f06c9316"},"schema_version":"1.0","source":{"id":"2304.02662","kind":"arxiv","version":1}},"canonical_sha256":"b0ae691d3eaf448db911c8b7c0254f34e036c07595ed79f7eea0ee33f8ef9f75","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"b0ae691d3eaf448db911c8b7c0254f34e036c07595ed79f7eea0ee33f8ef9f75","first_computed_at":"2026-07-05T06:20:28.206339Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T06:20:28.206339Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"LBVLBki44kdtIxwBvCVPpr1BOfHaz6Z99Hk3MJWOPoEQwKyaDbdsu7llwS79sTKgBL8gG1mxIDDcJO+K7OByCg==","signature_status":"signed_v1","signed_at":"2026-07-05T06:20:28.206793Z","signed_message":"canonical_sha256_bytes"},"source_id":"2304.02662","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:aef668843923f607dfc9b74d4144482c954facbe53cdc63c3c9c770c26bb2f54","sha256:f5dd40e7f5f0811966754c5daf38be5c1806aa3a86479aadd18535cb79303733"],"state_sha256":"4c268cdc45d1d2bea41b6ccf35236db46a82d6aa3d396f78a18866facb8155a9"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"zx8gvMlJAvZQLwdlq82xhqF1cY2L2OgBH8r+vDMqxULC8mgwAVp5+NQHErl5Ld7iUS2geY/wlR/fWV69hxvEDw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-20T14:19:22.600659Z","bundle_sha256":"ba5b02dc5010039e111cd5106bda92164b94276ae2230f9d13b5673d531dcdf7"}}