{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2024:45CY46LULU54Z7QMM4PEG43RFZ","short_pith_number":"pith:45CY46LU","canonical_record":{"source":{"id":"2410.08199","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2024-10-10T17:59:09Z","cross_cats_sorted":["astro-ph.SR"],"title_canon_sha256":"d8c6041ee008a385e23dfd66ccc0e6a7204bd618bdb283144b75d4ddd3b5ed2a","abstract_canon_sha256":"70dfbccb3c77d0c2256249554373389262d13708ce628cec04b000bcd3123f42"},"schema_version":"1.0"},"canonical_sha256":"e7458e79745d3bccfe0c671e4373712e4c4db2164a5ceaa9955e26016e93bd8b","source":{"kind":"arxiv","id":"2410.08199","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2410.08199","created_at":"2026-07-05T10:23:23Z"},{"alias_kind":"arxiv_version","alias_value":"2410.08199v2","created_at":"2026-07-05T10:23:23Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2410.08199","created_at":"2026-07-05T10:23:23Z"},{"alias_kind":"pith_short_12","alias_value":"45CY46LULU54","created_at":"2026-07-05T10:23:23Z"},{"alias_kind":"pith_short_16","alias_value":"45CY46LULU54Z7QM","created_at":"2026-07-05T10:23:23Z"},{"alias_kind":"pith_short_8","alias_value":"45CY46LU","created_at":"2026-07-05T10:23:23Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2024:45CY46LULU54Z7QMM4PEG43RFZ","target":"record","payload":{"canonical_record":{"source":{"id":"2410.08199","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2024-10-10T17:59:09Z","cross_cats_sorted":["astro-ph.SR"],"title_canon_sha256":"d8c6041ee008a385e23dfd66ccc0e6a7204bd618bdb283144b75d4ddd3b5ed2a","abstract_canon_sha256":"70dfbccb3c77d0c2256249554373389262d13708ce628cec04b000bcd3123f42"},"schema_version":"1.0"},"canonical_sha256":"e7458e79745d3bccfe0c671e4373712e4c4db2164a5ceaa9955e26016e93bd8b","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T10:23:23.926561Z","signature_b64":"zV4l1YVuetvuKaKZsqlEwTzDx0dnCoPbxOVQ+NlhuM6lAj5TRZQod2L7wfG4LQZ1T6xVYvuvfHFHiz7wZCAVDw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"e7458e79745d3bccfe0c671e4373712e4c4db2164a5ceaa9955e26016e93bd8b","last_reissued_at":"2026-07-05T10:23:23.926038Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T10:23:23.926038Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2410.08199","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T10:23:23Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"CtRd4lWVWML0OfQ9DbjFwQvF/W+U9J1CZQJue9/ZDrTD5HzB9g7NLZjIvVhhk/LWe3qdqYspbGZe02EkdFIrCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-10T09:26:05.327474Z"},"content_sha256":"d0d5c76c42dd1564ad8dd8d4e17c21f8b85213c41c5f68850359ec4a3e8ca48d","schema_version":"1.0","event_id":"sha256:d0d5c76c42dd1564ad8dd8d4e17c21f8b85213c41c5f68850359ec4a3e8ca48d"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2024:45CY46LULU54Z7QMM4PEG43RFZ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Spectropolarimetry of SN 2023ixf reveals both circumstellar material and helium core to be aspherical","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["astro-ph.SR"],"primary_cat":"astro-ph.HE","authors_text":"Brian Hsu, Callum McCall, Christopher Bilinski, Craig Pellegrino, Curtis McCully, D. Andrew Howell, Darshana Mehta, Daryl Janzen, David J. Sand, Douglas C. Leonard, Emily Hoang, Estefania Padilla Gonzalez, G. Grant Williams, Giacomo Terreran, Griffin Hosseinzadeh, Iain A Steele, Jacob E. Jencson, Jeniveve Pearson, Jennifer E. Andrews, Jennifer L. Hoffman, Joseph Farah, Justyn R. Maund, K. Azalee Bostroem, Klaas Wiersema, Manisha Shrestha, Megan Newsome, M. J. Lundquist, Nathan Smith, Nicolas Meza Retamal, Paul S. Smith, Peter Milne, Ramya M. Anche, Sabrina DeSoto, Saurabh W. Jha, Stefano Valenti, Yize Dong","submitted_at":"2024-10-10T17:59:09Z","abstract_excerpt":"We present multi-epoch optical spectropolarimetric and imaging polarimetric observations of the nearby Type II supernova (SN) 2023ixf discovered in M101 at a distance of 6.85 Mpc. The first imaging polarimetric observations were taken +2.33 days (60085.08 MJD) after the explosion, while the last imaging polarimetric data points (+73.19 and +76.19 days) were acquired after the fall from the light curve plateau. At +2.33 days there is strong evidence of circumstellar material (CSM) interaction in the spectra and the light curve. A significant level of intrinsic polarization $p_r = 1.02\\pm 0.07 \\"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2410.08199","kind":"arxiv","version":2},"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/2410.08199/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":"2026-07-05T10:23:23Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"3syqIZNd+Wx7XaXecydDlKiLZVm91LHna8+KRSDYwhvt6Gn+l6mXXrZxWX7TW+O78PvE6BwInz4UefFS7g3mCw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-10T09:26:05.328025Z"},"content_sha256":"45e50fee445793a928ac1462a24e9e1d99d81307ef9378672738cd07f7479c40","schema_version":"1.0","event_id":"sha256:45e50fee445793a928ac1462a24e9e1d99d81307ef9378672738cd07f7479c40"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/45CY46LULU54Z7QMM4PEG43RFZ/bundle.json","state_url":"https://pith.science/pith/45CY46LULU54Z7QMM4PEG43RFZ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/45CY46LULU54Z7QMM4PEG43RFZ/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":"2026-08-10T09:26:05Z","links":{"resolver":"https://pith.science/pith/45CY46LULU54Z7QMM4PEG43RFZ","bundle":"https://pith.science/pith/45CY46LULU54Z7QMM4PEG43RFZ/bundle.json","state":"https://pith.science/pith/45CY46LULU54Z7QMM4PEG43RFZ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/45CY46LULU54Z7QMM4PEG43RFZ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2024:45CY46LULU54Z7QMM4PEG43RFZ","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":"70dfbccb3c77d0c2256249554373389262d13708ce628cec04b000bcd3123f42","cross_cats_sorted":["astro-ph.SR"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2024-10-10T17:59:09Z","title_canon_sha256":"d8c6041ee008a385e23dfd66ccc0e6a7204bd618bdb283144b75d4ddd3b5ed2a"},"schema_version":"1.0","source":{"id":"2410.08199","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2410.08199","created_at":"2026-07-05T10:23:23Z"},{"alias_kind":"arxiv_version","alias_value":"2410.08199v2","created_at":"2026-07-05T10:23:23Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2410.08199","created_at":"2026-07-05T10:23:23Z"},{"alias_kind":"pith_short_12","alias_value":"45CY46LULU54","created_at":"2026-07-05T10:23:23Z"},{"alias_kind":"pith_short_16","alias_value":"45CY46LULU54Z7QM","created_at":"2026-07-05T10:23:23Z"},{"alias_kind":"pith_short_8","alias_value":"45CY46LU","created_at":"2026-07-05T10:23:23Z"}],"graph_snapshots":[{"event_id":"sha256:45e50fee445793a928ac1462a24e9e1d99d81307ef9378672738cd07f7479c40","target":"graph","created_at":"2026-07-05T10:23:23Z","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/2410.08199/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"We present multi-epoch optical spectropolarimetric and imaging polarimetric observations of the nearby Type II supernova (SN) 2023ixf discovered in M101 at a distance of 6.85 Mpc. The first imaging polarimetric observations were taken +2.33 days (60085.08 MJD) after the explosion, while the last imaging polarimetric data points (+73.19 and +76.19 days) were acquired after the fall from the light curve plateau. At +2.33 days there is strong evidence of circumstellar material (CSM) interaction in the spectra and the light curve. A significant level of intrinsic polarization $p_r = 1.02\\pm 0.07 \\","authors_text":"Brian Hsu, Callum McCall, Christopher Bilinski, Craig Pellegrino, Curtis McCully, D. Andrew Howell, Darshana Mehta, Daryl Janzen, David J. Sand, Douglas C. Leonard, Emily Hoang, Estefania Padilla Gonzalez, G. Grant Williams, Giacomo Terreran, Griffin Hosseinzadeh, Iain A Steele, Jacob E. Jencson, Jeniveve Pearson, Jennifer E. Andrews, Jennifer L. Hoffman, Joseph Farah, Justyn R. Maund, K. Azalee Bostroem, Klaas Wiersema, Manisha Shrestha, Megan Newsome, M. J. Lundquist, Nathan Smith, Nicolas Meza Retamal, Paul S. Smith, Peter Milne, Ramya M. Anche, Sabrina DeSoto, Saurabh W. Jha, Stefano Valenti, Yize Dong","cross_cats":["astro-ph.SR"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2024-10-10T17:59:09Z","title":"Spectropolarimetry of SN 2023ixf reveals both circumstellar material and helium core to be aspherical"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2410.08199","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:d0d5c76c42dd1564ad8dd8d4e17c21f8b85213c41c5f68850359ec4a3e8ca48d","target":"record","created_at":"2026-07-05T10:23:23Z","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":"70dfbccb3c77d0c2256249554373389262d13708ce628cec04b000bcd3123f42","cross_cats_sorted":["astro-ph.SR"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2024-10-10T17:59:09Z","title_canon_sha256":"d8c6041ee008a385e23dfd66ccc0e6a7204bd618bdb283144b75d4ddd3b5ed2a"},"schema_version":"1.0","source":{"id":"2410.08199","kind":"arxiv","version":2}},"canonical_sha256":"e7458e79745d3bccfe0c671e4373712e4c4db2164a5ceaa9955e26016e93bd8b","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"e7458e79745d3bccfe0c671e4373712e4c4db2164a5ceaa9955e26016e93bd8b","first_computed_at":"2026-07-05T10:23:23.926038Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T10:23:23.926038Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"zV4l1YVuetvuKaKZsqlEwTzDx0dnCoPbxOVQ+NlhuM6lAj5TRZQod2L7wfG4LQZ1T6xVYvuvfHFHiz7wZCAVDw==","signature_status":"signed_v1","signed_at":"2026-07-05T10:23:23.926561Z","signed_message":"canonical_sha256_bytes"},"source_id":"2410.08199","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:d0d5c76c42dd1564ad8dd8d4e17c21f8b85213c41c5f68850359ec4a3e8ca48d","sha256:45e50fee445793a928ac1462a24e9e1d99d81307ef9378672738cd07f7479c40"],"state_sha256":"927d0f31cafc222e8e5bc00116b02a070fecc6836641b88622a486160821245e"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"KwEWcILcpD5/Z1Ps60NxvtYa7kKgxwR6aZ05Ywof4K8YR9HluJuu1x4Nmoum1wfZXdHFIyGzCG1gCpxzrL5+Dw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-10T09:26:05.332688Z","bundle_sha256":"f3de501f6d33b5aca98ac6389ab0ae6b4ee55a1bb123df5a38064db006439300"}}