{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2023:C5URWN3L2JY2TLCTOPUCE3PXWG","short_pith_number":"pith:C5URWN3L","canonical_record":{"source":{"id":"2302.03105","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2023-02-06T20:10:34Z","cross_cats_sorted":["astro-ph.SR"],"title_canon_sha256":"fe8685c8eefb73554e1681506ffb029408ab828758b187cfdeebe9825437e10f","abstract_canon_sha256":"b032ff1d76711b308eb50207e249e9730bc260d00d32efd1e853b53617f760ce"},"schema_version":"1.0"},"canonical_sha256":"17691b376bd271a9ac5373e8226df7b18772f22f4d51e723681b6362e804adb4","source":{"kind":"arxiv","id":"2302.03105","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2302.03105","created_at":"2026-07-05T06:28:33Z"},{"alias_kind":"arxiv_version","alias_value":"2302.03105v2","created_at":"2026-07-05T06:28:33Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2302.03105","created_at":"2026-07-05T06:28:33Z"},{"alias_kind":"pith_short_12","alias_value":"C5URWN3L2JY2","created_at":"2026-07-05T06:28:33Z"},{"alias_kind":"pith_short_16","alias_value":"C5URWN3L2JY2TLCT","created_at":"2026-07-05T06:28:33Z"},{"alias_kind":"pith_short_8","alias_value":"C5URWN3L","created_at":"2026-07-05T06:28:33Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2023:C5URWN3L2JY2TLCTOPUCE3PXWG","target":"record","payload":{"canonical_record":{"source":{"id":"2302.03105","kind":"arxiv","version":2},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2023-02-06T20:10:34Z","cross_cats_sorted":["astro-ph.SR"],"title_canon_sha256":"fe8685c8eefb73554e1681506ffb029408ab828758b187cfdeebe9825437e10f","abstract_canon_sha256":"b032ff1d76711b308eb50207e249e9730bc260d00d32efd1e853b53617f760ce"},"schema_version":"1.0"},"canonical_sha256":"17691b376bd271a9ac5373e8226df7b18772f22f4d51e723681b6362e804adb4","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T06:28:33.775789Z","signature_b64":"NzE0P1gAHGI+yQdH3adHcWQg1OfyeOBUxQlHAqUyYmJD97kYRqqqA+GtaKJ3thd5AzsXjSjD1qPUnV/bn7IDAA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"17691b376bd271a9ac5373e8226df7b18772f22f4d51e723681b6362e804adb4","last_reissued_at":"2026-07-05T06:28:33.775240Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T06:28:33.775240Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2302.03105","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":"2026-07-05T06:28:33Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"6kxJu66o5Pbq1kZ2POMmPIaSH/kibE9U8Dcne4WYVcpumBe9RSbiO763wEAgFYbVg5E+j/4eLt/3/7h862tfCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-11T21:21:15.858724Z"},"content_sha256":"b49810fad00c5df5bf35102448df08f2829dc7ad877a14ecb57b2d3587ce1bdc","schema_version":"1.0","event_id":"sha256:b49810fad00c5df5bf35102448df08f2829dc7ad877a14ecb57b2d3587ce1bdc"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2023:C5URWN3L2JY2TLCTOPUCE3PXWG","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Over 500 Days in the Life of the Photosphere of the Type Iax Supernova SN 2014dt","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["astro-ph.SR"],"primary_cat":"astro-ph.HE","authors_text":"Alexei V. Filippenko, Barnabas Barna, Benjamin E. Stahl, Conor Larison, Curtis McCully, D. Andrew Howell, Griffin Hosseinzadeh, Jaladh Singhal, Joel Johansson, John T. O'Brien, Lindsey A. Kwok, Marc Williamson, Mark R. Magee, Meredith Wieber, Mi Dai, Patrick Kelly, Ryan J. Foley, Saurabh W. Jha, Tam\\'as Szalai, Viraj Pandya, Wolfgang E. Kerzendorf, Yen-Chen Pan, Yssavo Camacho-Neves","submitted_at":"2023-02-06T20:10:34Z","abstract_excerpt":"Type Iax supernovae (SN Iax) are the largest known class of peculiar white dwarf supernovae, distinct from normal Type Ia supernovae (SN Ia). The unique properties of SN Iax, especially their strong photospheric lines out to extremely late times, allow us to model their optical spectra and derive physical parameters for the long-lasting photosphere. We present an extensive spectral timeseries, including 21 new spectra, of SN Iax 2014dt from +11 to +562 days after maximum light. We are able to reproduce the entire timeseries with a self-consistent, nearly unaltered deflagration explosion model "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2302.03105","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/2302.03105/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":"2026-07-05T06:28:33Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"rym5yqjmp42EkQbtMqKtnRWfWZr3YAnE2Lln+YmHrqVONKSa4BJST4ebPuJSPo8C6Aqk5GP6cl7aYsj/wUDKBA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-07-11T21:21:15.859103Z"},"content_sha256":"75f84ed38449ccdc61846196ba03d5859d6e9eb0f839ddc2d1bf717090f76411","schema_version":"1.0","event_id":"sha256:75f84ed38449ccdc61846196ba03d5859d6e9eb0f839ddc2d1bf717090f76411"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/C5URWN3L2JY2TLCTOPUCE3PXWG/bundle.json","state_url":"https://pith.science/pith/C5URWN3L2JY2TLCTOPUCE3PXWG/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/C5URWN3L2JY2TLCTOPUCE3PXWG/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":"2026-07-11T21:21:15Z","links":{"resolver":"https://pith.science/pith/C5URWN3L2JY2TLCTOPUCE3PXWG","bundle":"https://pith.science/pith/C5URWN3L2JY2TLCTOPUCE3PXWG/bundle.json","state":"https://pith.science/pith/C5URWN3L2JY2TLCTOPUCE3PXWG/state.json","well_known_bundle":"https://pith.science/.well-known/pith/C5URWN3L2JY2TLCTOPUCE3PXWG/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2023:C5URWN3L2JY2TLCTOPUCE3PXWG","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":"b032ff1d76711b308eb50207e249e9730bc260d00d32efd1e853b53617f760ce","cross_cats_sorted":["astro-ph.SR"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2023-02-06T20:10:34Z","title_canon_sha256":"fe8685c8eefb73554e1681506ffb029408ab828758b187cfdeebe9825437e10f"},"schema_version":"1.0","source":{"id":"2302.03105","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2302.03105","created_at":"2026-07-05T06:28:33Z"},{"alias_kind":"arxiv_version","alias_value":"2302.03105v2","created_at":"2026-07-05T06:28:33Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2302.03105","created_at":"2026-07-05T06:28:33Z"},{"alias_kind":"pith_short_12","alias_value":"C5URWN3L2JY2","created_at":"2026-07-05T06:28:33Z"},{"alias_kind":"pith_short_16","alias_value":"C5URWN3L2JY2TLCT","created_at":"2026-07-05T06:28:33Z"},{"alias_kind":"pith_short_8","alias_value":"C5URWN3L","created_at":"2026-07-05T06:28:33Z"}],"graph_snapshots":[{"event_id":"sha256:75f84ed38449ccdc61846196ba03d5859d6e9eb0f839ddc2d1bf717090f76411","target":"graph","created_at":"2026-07-05T06:28:33Z","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/2302.03105/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Type Iax supernovae (SN Iax) are the largest known class of peculiar white dwarf supernovae, distinct from normal Type Ia supernovae (SN Ia). The unique properties of SN Iax, especially their strong photospheric lines out to extremely late times, allow us to model their optical spectra and derive physical parameters for the long-lasting photosphere. We present an extensive spectral timeseries, including 21 new spectra, of SN Iax 2014dt from +11 to +562 days after maximum light. We are able to reproduce the entire timeseries with a self-consistent, nearly unaltered deflagration explosion model ","authors_text":"Alexei V. Filippenko, Barnabas Barna, Benjamin E. Stahl, Conor Larison, Curtis McCully, D. Andrew Howell, Griffin Hosseinzadeh, Jaladh Singhal, Joel Johansson, John T. O'Brien, Lindsey A. Kwok, Marc Williamson, Mark R. Magee, Meredith Wieber, Mi Dai, Patrick Kelly, Ryan J. Foley, Saurabh W. Jha, Tam\\'as Szalai, Viraj Pandya, Wolfgang E. Kerzendorf, Yen-Chen Pan, Yssavo Camacho-Neves","cross_cats":["astro-ph.SR"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2023-02-06T20:10:34Z","title":"Over 500 Days in the Life of the Photosphere of the Type Iax Supernova SN 2014dt"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2302.03105","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:b49810fad00c5df5bf35102448df08f2829dc7ad877a14ecb57b2d3587ce1bdc","target":"record","created_at":"2026-07-05T06:28:33Z","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":"b032ff1d76711b308eb50207e249e9730bc260d00d32efd1e853b53617f760ce","cross_cats_sorted":["astro-ph.SR"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2023-02-06T20:10:34Z","title_canon_sha256":"fe8685c8eefb73554e1681506ffb029408ab828758b187cfdeebe9825437e10f"},"schema_version":"1.0","source":{"id":"2302.03105","kind":"arxiv","version":2}},"canonical_sha256":"17691b376bd271a9ac5373e8226df7b18772f22f4d51e723681b6362e804adb4","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"17691b376bd271a9ac5373e8226df7b18772f22f4d51e723681b6362e804adb4","first_computed_at":"2026-07-05T06:28:33.775240Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T06:28:33.775240Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"NzE0P1gAHGI+yQdH3adHcWQg1OfyeOBUxQlHAqUyYmJD97kYRqqqA+GtaKJ3thd5AzsXjSjD1qPUnV/bn7IDAA==","signature_status":"signed_v1","signed_at":"2026-07-05T06:28:33.775789Z","signed_message":"canonical_sha256_bytes"},"source_id":"2302.03105","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:b49810fad00c5df5bf35102448df08f2829dc7ad877a14ecb57b2d3587ce1bdc","sha256:75f84ed38449ccdc61846196ba03d5859d6e9eb0f839ddc2d1bf717090f76411"],"state_sha256":"fbc9bc2672f15d46704b4411a4a9cfa7665a89498b9281004289f9c4756fb868"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"RLfA7b8aRROo75+W72LEE024HjB6laijAm02l7Vh/W9iLJEmOCEgPosRCPykwtY6OqOJ91sxrjQKTharunbLCg==","signed_message":"bundle_sha256_bytes","signed_at":"2026-07-11T21:21:15.861307Z","bundle_sha256":"6a871d741c1816a239bb46274c3992267697efa36024baac4d62ba973586782c"}}